Hype for tomorrow

17 files changed, 2558 insertions, 6 deletions

diff --git a/2015/01/Makefile b/2015/01/Makefile
index 769d06d..57e1574 100644
--- a/2015/01/Makefile
+++ b/2015/01/Makefile
@@ -1,10 +1,19 @@
-.PHONY: solve.c
+DEBUG = -Wno-error -Og -ggdb3 -s -fsanitize=undefined -fsanitize=address -fstack-protector-all
+CFLAGS = -Wall -Wextra -Werror -Wshadow -Wpointer-arith -Wwrite-strings -Wredundant-decls -Wnested-externs -Wformat=2 -Wmissing-declarations -Wstrict-prototypes -Wmissing-prototypes -Wcast-qual -Wswitch-default -Wswitch-enum -Wunreachable-code -Wundef -Wold-style-definition -Wvla -pedantic-errors -Ofast
 
-solve.o: solve.c
-	@gcc $+ -o $@
+# Not the best makefile but idc
+
+debug:
+	@gcc $(CFLAGS) $(DEBUG) solve.c -o solve.o
+
+build:
+	@gcc $(CFLAGS) solve.c -o solve.o
 
 clean:
 	@rm -f *.o
 
-run: solve.o
+run: debug
+	@./solve.o
+
+time: build
 	@./solve.o
diff --git a/2015/01/solve.c b/2015/01/solve.c
index 287bf3f..81a0ec4 100644
--- a/2015/01/solve.c
+++ b/2015/01/solve.c
@@ -2,7 +2,7 @@
 #include <stdlib.h>
 #include <time.h>
 
-int part_one(FILE *fp)
+static int part_one(FILE *fp)
 {
 	int res = 0;
 
@@ -17,7 +17,7 @@ int part_one(FILE *fp)
 	return res;
 }
 
-int part_two(FILE *fp)
+static int part_two(FILE *fp)
 {
 	int res = 0, floor = 0;
 
@@ -39,6 +39,9 @@ int part_two(FILE *fp)
 
 int main(int argc, char *argv[])
 {
+	(void)argc;
+	(void)argv;
+
 	FILE *fp = fopen("input", "r");
 	if (!fp)
 		exit(EXIT_FAILURE);
diff --git a/2015/02/Makefile b/2015/02/Makefile
new file mode 100644
index 0000000..57e1574
--- /dev/null
+++ b/2015/02/Makefile
@@ -0,0 +1,19 @@
+DEBUG = -Wno-error -Og -ggdb3 -s -fsanitize=undefined -fsanitize=address -fstack-protector-all
+CFLAGS = -Wall -Wextra -Werror -Wshadow -Wpointer-arith -Wwrite-strings -Wredundant-decls -Wnested-externs -Wformat=2 -Wmissing-declarations -Wstrict-prototypes -Wmissing-prototypes -Wcast-qual -Wswitch-default -Wswitch-enum -Wunreachable-code -Wundef -Wold-style-definition -Wvla -pedantic-errors -Ofast
+
+# Not the best makefile but idc
+
+debug:
+	@gcc $(CFLAGS) $(DEBUG) solve.c -o solve.o
+
+build:
+	@gcc $(CFLAGS) solve.c -o solve.o
+
+clean:
+	@rm -f *.o
+
+run: debug
+	@./solve.o
+
+time: build
+	@./solve.o
diff --git a/2015/02/input b/2015/02/input
new file mode 100644
index 0000000..908022e
--- /dev/null
+++ b/2015/02/input
@@ -0,0 +1,1000 @@
+3x11x24
+13x5x19
+1x9x27
+24x8x21
+6x8x17
+19x18x22
+10x9x12
+12x2x5
+26x6x11
+9x23x15
+12x8x17
+13x29x10
+28x18x6
+22x28x26
+1x5x11
+29x26x12
+8x28x29
+27x4x21
+12x7x16
+7x4x23
+15x24x8
+15x14x2
+11x6x29
+28x19x9
+10x3x1
+5x20x13
+10x25x1
+22x17x7
+16x29x3
+18x22x8
+18x11x19
+21x24x20
+4x7x17
+22x27x12
+1x26x6
+5x27x24
+29x21x3
+25x30x2
+21x26x2
+10x24x27
+10x16x28
+18x16x23
+6x5x26
+19x12x20
+6x24x25
+11x20x7
+4x8x5
+2x13x11
+11x17x1
+13x24x6
+22x29x16
+4x24x20
+10x25x10
+12x29x23
+23x27x12
+11x21x9
+13x2x6
+15x30x2
+8x26x24
+24x7x30
+22x22x8
+29x27x8
+28x23x27
+13x16x14
+9x28x20
+21x4x30
+21x20x20
+11x17x30
+9x14x22
+20x2x6
+10x11x14
+1x8x23
+23x19x19
+26x10x13
+21x12x12
+25x7x24
+1x28x17
+20x23x9
+2x24x27
+20x24x29
+1x3x10
+5x20x14
+25x21x3
+15x5x22
+14x17x19
+27x3x18
+29x23x19
+14x21x19
+20x8x3
+22x27x12
+24x15x18
+9x10x19
+29x25x28
+14x22x6
+4x19x28
+4x24x14
+17x19x17
+7x19x29
+28x8x26
+7x20x16
+11x26x29
+2x18x3
+12x7x18
+11x15x21
+24x7x26
+2x22x23
+2x30x5
+1x19x8
+15x29x10
+15x26x22
+20x16x14
+25x29x22
+3x13x19
+1x12x30
+3x15x27
+19x9x11
+30x8x21
+26x12x20
+11x17x19
+17x25x1
+19x24x12
+30x6x20
+11x19x18
+18x15x29
+18x8x9
+25x15x5
+15x6x26
+13x27x19
+23x24x12
+3x15x28
+17x10x10
+15x4x7
+15x27x7
+21x8x11
+9x18x2
+7x20x20
+17x23x12
+2x19x1
+7x26x26
+13x23x8
+10x3x12
+11x1x9
+1x11x19
+25x14x26
+16x10x15
+7x6x11
+8x1x27
+20x28x17
+3x25x9
+30x7x5
+17x17x4
+23x25x27
+23x8x5
+13x11x1
+15x10x21
+22x16x1
+12x15x28
+27x18x26
+25x18x5
+21x3x27
+15x25x5
+29x27x19
+11x10x12
+22x16x21
+11x8x18
+6x10x23
+21x21x2
+13x27x28
+2x5x20
+23x16x20
+1x21x7
+22x2x13
+11x10x4
+7x3x4
+19x2x5
+21x11x1
+7x27x26
+12x4x23
+12x3x15
+25x7x4
+20x7x15
+16x5x11
+1x18x26
+11x27x10
+17x6x24
+19x13x16
+6x3x11
+4x19x18
+16x15x15
+1x11x17
+19x11x29
+18x19x1
+1x25x7
+8x22x14
+15x6x19
+5x30x18
+30x24x22
+11x16x2
+21x29x19
+20x29x11
+27x1x18
+20x5x30
+12x4x28
+3x9x30
+26x20x15
+18x25x18
+20x28x28
+21x5x3
+20x21x25
+19x27x22
+8x27x9
+1x5x15
+30x6x19
+16x5x15
+18x30x21
+4x15x8
+9x3x28
+18x15x27
+25x11x6
+17x22x15
+18x12x18
+14x30x30
+1x7x23
+27x21x12
+15x7x18
+16x17x24
+11x12x19
+18x15x21
+6x18x15
+2x21x4
+12x9x14
+19x7x25
+22x3x1
+29x19x7
+30x25x7
+6x27x27
+5x13x9
+21x4x18
+13x1x16
+11x21x25
+27x20x27
+14x25x9
+23x11x15
+22x10x26
+15x16x4
+14x16x21
+1x1x24
+17x27x3
+25x28x16
+12x2x29
+9x19x28
+12x7x17
+6x9x19
+15x14x24
+25x21x23
+26x27x25
+7x18x13
+15x10x6
+22x28x2
+15x2x14
+3x24x18
+30x22x7
+18x27x17
+29x18x7
+20x2x4
+4x20x26
+23x30x15
+5x7x3
+4x24x12
+24x30x20
+26x18x17
+6x28x3
+29x19x29
+14x10x4
+15x5x23
+12x25x4
+7x15x19
+26x21x19
+18x2x23
+19x20x3
+3x13x9
+29x21x24
+26x13x29
+30x27x4
+20x10x29
+21x18x8
+7x26x10
+29x16x21
+22x5x11
+17x15x2
+7x29x5
+6x18x15
+23x6x14
+10x30x14
+26x6x16
+24x13x25
+17x29x20
+4x27x19
+28x12x11
+23x20x3
+22x6x20
+29x9x19
+10x16x22
+30x26x4
+29x26x11
+2x11x15
+1x3x30
+30x30x29
+9x1x3
+30x13x16
+20x4x5
+23x28x11
+24x27x1
+4x25x10
+9x3x6
+14x4x15
+4x5x25
+27x14x13
+20x30x3
+28x15x25
+5x19x2
+10x24x29
+29x30x18
+30x1x25
+7x7x15
+1x13x16
+23x18x4
+1x28x8
+24x11x8
+22x26x19
+30x30x14
+2x4x13
+27x20x26
+16x20x17
+11x12x13
+28x2x17
+15x26x13
+29x15x25
+30x27x9
+2x6x25
+10x26x19
+16x8x23
+12x17x18
+26x14x22
+13x17x4
+27x27x29
+17x13x22
+9x8x3
+25x15x20
+14x13x16
+8x7x13
+12x4x21
+27x16x15
+6x14x5
+28x29x17
+23x17x25
+10x27x28
+1x28x21
+18x2x30
+25x30x16
+25x21x7
+2x3x4
+9x6x13
+19x6x10
+28x17x8
+13x24x28
+24x12x7
+5x19x5
+18x10x27
+16x1x6
+12x14x30
+1x2x28
+23x21x2
+13x3x23
+9x22x10
+10x17x2
+24x20x11
+30x6x14
+28x1x16
+24x20x1
+28x7x7
+1x24x21
+14x9x7
+22x8x15
+20x1x21
+6x3x7
+7x26x14
+5x7x28
+5x4x4
+15x7x28
+30x16x23
+7x26x2
+1x2x30
+24x28x20
+5x17x28
+4x15x20
+15x26x2
+1x3x23
+22x30x24
+9x20x16
+7x15x2
+6x21x18
+21x21x29
+29x10x10
+4x3x23
+23x2x18
+29x24x14
+29x29x16
+22x28x24
+21x18x24
+16x21x6
+3x9x22
+9x18x4
+22x9x9
+12x9x13
+18x21x14
+7x8x29
+28x28x14
+1x6x24
+11x11x3
+8x28x6
+11x16x10
+9x16x16
+6x6x19
+21x5x12
+15x17x12
+3x6x29
+19x1x26
+10x30x25
+24x26x21
+1x10x18
+6x1x16
+4x17x27
+17x11x27
+15x15x21
+14x23x1
+8x9x30
+22x22x25
+20x27x22
+12x7x9
+9x26x19
+26x25x12
+8x8x16
+28x15x10
+29x18x2
+25x22x6
+4x6x15
+12x18x4
+10x3x20
+17x28x17
+14x25x13
+14x10x3
+14x5x10
+7x7x22
+21x2x14
+1x21x5
+27x29x1
+6x20x4
+7x19x23
+28x19x27
+3x9x18
+13x17x17
+18x8x15
+26x23x17
+10x10x13
+11x5x21
+25x15x29
+6x23x24
+10x7x2
+19x10x30
+4x3x23
+22x12x6
+11x17x16
+6x8x12
+18x20x11
+6x2x2
+17x4x11
+20x23x22
+29x23x24
+25x11x21
+22x11x15
+29x3x9
+13x30x5
+17x10x12
+10x30x8
+21x16x17
+1x5x26
+22x15x16
+27x7x11
+16x8x18
+29x9x7
+25x4x17
+10x21x25
+2x19x21
+29x11x16
+18x26x21
+2x8x20
+17x29x27
+25x27x4
+14x3x14
+25x29x29
+26x18x11
+8x24x28
+7x30x24
+12x30x22
+29x20x6
+3x17x1
+6x15x14
+6x22x20
+13x26x26
+12x2x1
+7x14x12
+15x16x11
+3x21x4
+30x17x29
+9x18x27
+11x28x16
+22x3x25
+18x15x15
+2x30x12
+3x27x22
+10x8x8
+26x16x14
+15x2x29
+12x10x7
+21x20x15
+2x15x25
+4x14x13
+3x15x13
+29x8x3
+7x7x28
+15x10x24
+23x15x5
+5x7x14
+24x1x22
+1x11x13
+26x4x19
+19x16x26
+5x25x5
+17x25x14
+23x7x14
+24x6x17
+5x13x12
+20x20x5
+22x29x17
+11x17x29
+25x6x4
+29x8x16
+28x22x24
+24x23x17
+16x17x4
+17x8x25
+22x9x13
+24x4x8
+18x10x20
+21x23x21
+13x14x12
+23x26x4
+4x10x29
+2x18x18
+19x5x21
+2x27x23
+6x29x30
+21x9x20
+6x5x16
+25x10x27
+5x29x21
+24x14x19
+19x11x8
+2x28x6
+19x25x6
+27x1x11
+6x8x29
+18x25x30
+4x27x26
+8x12x1
+7x17x25
+7x14x27
+12x9x5
+14x29x13
+18x17x5
+23x1x3
+28x5x13
+3x2x26
+3x7x11
+1x8x7
+12x5x4
+2x30x21
+16x30x11
+3x26x4
+16x9x4
+11x9x22
+23x5x6
+13x20x3
+4x3x2
+14x10x29
+11x8x12
+26x15x16
+7x17x29
+18x19x18
+8x28x4
+22x6x13
+9x23x7
+11x23x20
+13x11x26
+15x30x13
+1x5x8
+5x10x24
+22x25x17
+27x20x25
+30x10x21
+16x28x24
+20x12x8
+17x25x1
+30x14x9
+14x18x6
+8x28x29
+12x18x29
+9x7x18
+6x12x25
+20x13x24
+22x3x12
+5x23x22
+8x10x17
+7x23x5
+10x26x27
+14x26x19
+10x18x24
+8x4x4
+16x15x11
+3x14x9
+18x5x30
+29x12x26
+16x13x12
+15x10x7
+18x5x26
+14x1x6
+10x8x29
+3x4x9
+19x4x23
+28x17x23
+30x7x17
+19x5x9
+26x29x28
+22x13x17
+28x2x1
+20x30x8
+15x13x21
+25x23x19
+27x23x1
+4x6x23
+29x29x24
+5x18x7
+4x6x30
+17x15x2
+27x4x2
+25x24x14
+28x8x30
+24x29x5
+14x30x14
+10x18x19
+15x26x22
+24x19x21
+29x23x27
+21x10x16
+7x4x29
+14x21x3
+21x4x28
+17x16x15
+24x7x13
+21x24x15
+25x11x16
+10x26x13
+23x20x14
+20x29x27
+14x24x14
+14x23x12
+18x6x5
+3x18x9
+8x18x19
+20x26x15
+16x14x13
+30x16x3
+17x13x4
+15x19x30
+20x3x8
+13x4x5
+12x10x15
+8x23x26
+16x8x15
+22x8x11
+12x11x18
+28x3x30
+15x8x4
+13x22x13
+21x26x21
+29x1x15
+28x9x5
+27x3x26
+22x19x30
+4x11x22
+21x27x20
+22x26x7
+19x28x20
+24x23x16
+26x12x9
+13x22x9
+5x6x23
+20x7x2
+18x26x30
+3x6x28
+24x18x13
+28x19x16
+25x21x25
+25x19x23
+22x29x10
+29x19x30
+4x7x27
+5x12x28
+8x26x6
+14x14x25
+17x17x2
+5x27x11
+8x2x2
+3x20x24
+26x10x9
+22x28x27
+18x15x20
+12x11x1
+5x14x30
+7x3x16
+2x16x16
+18x20x15
+13x14x29
+1x17x12
+13x5x23
+19x4x10
+25x19x11
+15x17x14
+1x28x27
+11x9x28
+9x10x18
+30x11x22
+21x21x20
+2x1x5
+2x25x1
+7x3x4
+22x15x29
+21x28x15
+12x12x4
+21x30x6
+15x10x7
+10x14x6
+21x26x18
+14x25x6
+9x7x11
+22x3x1
+1x16x27
+1x14x23
+2x13x8
+14x19x11
+21x26x1
+4x28x13
+12x16x20
+21x13x9
+3x4x13
+14x9x8
+21x21x12
+27x10x17
+6x20x6
+28x23x23
+2x28x12
+8x10x10
+3x9x2
+20x3x29
+19x4x16
+29x24x9
+26x20x8
+15x28x26
+18x17x10
+7x22x10
+20x15x9
+6x10x8
+7x26x21
+8x8x16
+15x6x29
+22x30x11
+18x25x8
+6x21x20
+7x23x25
+8x25x26
+11x25x27
+22x18x23
+3x2x14
+16x16x1
+15x13x11
+3x9x25
+29x25x24
+9x15x1
+12x4x1
+23x30x20
+3x1x23
+6x10x29
+28x13x24
+4x19x17
+6x6x25
+27x29x17
+12x13x2
+10x7x13
+14x15x8
+22x2x3
+27x17x19
+23x10x16
+5x9x25
+9x25x14
+11x18x6
+18x10x12
+9x4x15
+7x16x14
+17x24x10
+11x4x6
+12x9x17
+22x18x12
+6x24x24
+6x22x23
+5x17x30
+6x9x5
+17x20x10
+6x8x12
+14x17x13
+29x10x17
+22x4x5
+10x19x30
+22x29x11
+10x12x29
+21x22x26
+16x6x25
+1x26x24
+30x17x16
+27x28x5
+30x13x22
+7x26x12
+11x24x30
+1x17x25
+22x1x3
+29x24x6
+4x8x24
+13x9x20
+8x12x9
+21x25x4
+23x23x28
+5x2x19
+29x3x15
+22x1x14
+3x23x30
+8x25x3
+15x8x14
+30x14x6
+23x27x24
+19x1x2
+10x9x13
+13x8x7
+8x13x22
+5x15x20
+17x14x8
+5x11x20
+5x10x27
+24x17x19
+21x2x3
+15x30x26
+21x19x15
+2x7x23
+13x17x25
+30x15x19
+26x4x10
+2x25x8
+9x9x10
+2x25x8
+19x21x30
+17x26x12
+7x5x10
+2x22x14
+10x17x30
+1x8x5
+23x2x25
+22x29x8
+13x26x1
+26x3x30
+25x17x8
+25x18x26
+26x19x15
+8x28x10
+12x16x29
+30x6x29
+28x19x4
+27x26x18
+15x23x17
+5x21x30
+8x11x13
+2x26x7
+19x9x24
+3x22x23
+6x7x18
+4x26x30
+13x25x20
+17x3x15
+8x20x18
+23x18x23
+28x23x9
+16x3x4
+1x29x14
+20x26x22
+3x2x22
+23x8x17
+19x5x17
+21x18x20
+17x21x8
+30x28x1
+29x19x23
+12x12x11
+24x18x7
+21x18x14
+14x26x25
+9x11x3
+10x7x15
+27x6x28
+14x26x4
+28x4x1
+22x25x29
+6x26x6
+1x3x13
+26x22x12
+6x21x26
+23x4x27
+26x13x24
+5x24x28
+22x16x7
+3x27x24
+19x28x2
+11x13x9
+29x16x22
+30x10x24
+14x14x22
+22x23x16
+14x8x3
+20x5x14
+28x6x13
+3x15x25
+4x12x22
+15x12x25
+10x11x24
+7x7x6
+8x11x9
+21x10x29
+23x28x30
+8x29x26
+16x27x11
+1x10x2
+24x20x16
+7x12x28
+28x8x20
+14x10x30
+1x19x6
+4x12x20
+18x2x7
+24x18x17
+16x11x10
+1x12x22
+30x16x28
+18x12x11
+28x9x8
+23x6x17
+10x3x11
+5x12x8
+22x2x23
+9x19x14
+15x28x13
+27x20x23
+19x16x12
+19x30x15
+8x17x4
+10x22x18
+13x22x4
+3x12x19
+22x16x23
+11x8x19
+8x11x6
+7x14x7
+29x17x29
+21x8x12
+21x9x11
+20x1x27
+1x22x11
+5x28x4
+26x7x26
+30x12x18
+29x11x20
+3x12x15
+24x25x17
+14x6x11
diff --git a/2015/02/solve.c b/2015/02/solve.c
new file mode 100644
index 0000000..e1030a8
--- /dev/null
+++ b/2015/02/solve.c
@@ -0,0 +1,65 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+static int part_one(FILE *fp)
+{
+	int res = 0;
+
+	char *line = NULL;
+	size_t len = 0;
+	while (getline(&line, &len, fp) != EOF) {
+		int w, l, h;
+		sscanf(line, "%dx%dx%d", &w, &l, &h);
+		res += 2 * l * w + 2 * w * h + 2 * h * l;
+
+		int a = w * l, b = l * h, c = w * h;
+		res += (a <= b && a <= c) ? a : (b <= c && b <= a) ? b : (c <= a && c <= b) ? c : 0;
+	}
+
+	if (line)
+		free(line);
+
+	return res;
+}
+
+static int part_two(FILE *fp)
+{
+	int res = 0;
+
+	char *line = NULL;
+	size_t len = 0;
+	while (getline(&line, &len, fp) != EOF) {
+		int w, l, h;
+		sscanf(line, "%dx%dx%d", &w, &l, &h);
+
+		int a = 2 * w + 2 * l, b = 2 * l + 2 * h, c = 2 * w + 2 * h;
+		res += (a <= b && a <= c) ? a : (b <= c && b <= a) ? b : (c <= a && c <= b) ? c : 0;
+		res += w * h * l;
+	}
+
+	if (line)
+		free(line);
+
+	return res;
+}
+
+int main(int argc, char *argv[])
+{
+	(void)argc;
+	(void)argv;
+
+	FILE *fp = fopen("input", "r");
+	if (!fp)
+		exit(EXIT_FAILURE);
+
+	clock_t tic = clock();
+	printf("%d\n", part_one(fp));
+	rewind(fp);
+	printf("%d\n", part_two(fp));
+	clock_t toc = clock();
+	printf("TIME: %f seconds\n", (double)(toc - tic) / CLOCKS_PER_SEC);
+
+	fclose(fp);
+	return 0;
+}
diff --git a/2015/03/Makefile b/2015/03/Makefile
new file mode 100644
index 0000000..57e1574
--- /dev/null
+++ b/2015/03/Makefile
@@ -0,0 +1,19 @@
+DEBUG = -Wno-error -Og -ggdb3 -s -fsanitize=undefined -fsanitize=address -fstack-protector-all
+CFLAGS = -Wall -Wextra -Werror -Wshadow -Wpointer-arith -Wwrite-strings -Wredundant-decls -Wnested-externs -Wformat=2 -Wmissing-declarations -Wstrict-prototypes -Wmissing-prototypes -Wcast-qual -Wswitch-default -Wswitch-enum -Wunreachable-code -Wundef -Wold-style-definition -Wvla -pedantic-errors -Ofast
+
+# Not the best makefile but idc
+
+debug:
+	@gcc $(CFLAGS) $(DEBUG) solve.c -o solve.o
+
+build:
+	@gcc $(CFLAGS) solve.c -o solve.o
+
+clean:
+	@rm -f *.o
+
+run: debug
+	@./solve.o
+
+time: build
+	@./solve.o
diff --git a/2015/03/input b/2015/03/input
new file mode 100644
index 0000000..e69cd4f
--- /dev/null
+++ b/2015/03/input
@@ -0,0 +1 @@
+^^<<v<<v><v^^<><>^^<v<v^>>^^^><^>v^>v><><><<vv^^<^>^^<v^>v>v^v>>>^<>v<^<v^><^>>>>><<v>>^>>^>v^>><<^>v>v<>^v^v^vvv><>^^>v><v<><>^><^^<vv^v<v>^v>>^v^>v><>v^<vv>^><<v^>vv^<<>v>>><<<>>^<vv<^<>^^vv>>>^><<<<vv^v^>>><><^>v<>^>v<v^v<^vv><^v^><<<<>^<>v>^v>v<v<v<<>v<^<<<v>>>>>^^v>vv^^<>^<>^^^^<^^^v<v^^>v<^^v^^>v>^v^^^^>><<v<>v<>^v^<v<>><>^^><<^^<^^>vv<>v^<^v<vv<<<>^>^^>^<>v^^vv<>>v><<<>vvv<>v<>><^<^v<>^vv>^^v<v<v><^<>>vv<^>>^>>vv^v<vv^vv<^<<>>^v^<>^>>>>vv>^^>v>vv>v><^vv^<<v>^<<^^<v<v>vv<v^^<>^^v>^>>v><^<<vv<<v^vv^^^v>>v<<v^><vv^><vv<^vv<<vv^v<<^v<^^v>><<v^>>^^<>v>><<v<>>^^<v>>^^>>vvv^><<<<<^<^vv<^<><v<<>^^^<<<^>^^^<v<<vv>vv<>^<>v<^v>^<<<v<v<v>>^v<>>v<<^<<v<<>^<<<><><>^>>>>^>v^v<<v<v<<>>vv<^vvv^^^^<vv>vv>^v^^v^<v^v><^vv<^vv>v<^>vv<>>^>^><vv<><^>v>^v>vvv<>^>^v<><>vv>><^v^<><><v>>v^v^><^<^>vv>v<^>vvv>v<<<<<^<v<<vv<^^^<<>>^v<vv<^<>v>^<v<>><><>^<<v>v^>^<vv>><><>>^>^>><^<v>^^>^^>^^v^^<^v^^>v^^>>><<><v<v<<v^vv<><><>^<v>^<<^^v^>v>><>^^^><^vvv<^^^^^v><<><v<^^v><><>>^>vv<vvvv<<>>><v<^^^^v<<^><v>^vv<v^^v^vv<^^>^^<v>><<v^>v<^^>^<^<v<^^v>^<<v>^>>>^v<>v<^^^>vvv^v<<^><>>><vvv^<^^^<^>>v>>><v>^^vvv^vvv<^^^^v^v^<vv^<v>^<<^>v^v^<<><>><^v><v<><<>><<<>^v>v<>^<v^v>^vv>>^<>v^^<<v><^v>>v<>>^v^^>><^>v^<^v^^>><>v^>^v^v<<<v^<v^^v<^>v<><>vv>>>>^>v<>v<<<>^^>vv^v<><v^<>^<<<<>>^^>^v<v^v<<><>^v<>>^v^<<^<^>>>^vv<><v<^^<>v^>>v<^^v<v>>>^>><<><<<>><vv<v>>^v>><^<v><vv>^vv<v<>>><>v^><>vv<^^v^^^v<>><^vvv<<^<>v>>>v>><v><>>><>><v^><v^v<v>^v>v<v>>^^<^>^>v><>vv>^v><<>>>>>>>^<<^vv^^vvvv<^^><<<v<<>vvv<>^><<v<v^v^<<v>v<>>^<vv^<v<v>^<<^^vv>v>^<vv<<>v<v^<>v>>^v^^vvvv>^^>>v^v^^><<^>v>>^^>^<^^<>v<v>vv^vv>v<v>>^v<><^vv^<vv<v^^^v<^v^>>^v>>>^^<^<^>^v^>^>>>^v>^>^^^>>^<>v^^<>^v<<^^>^^<vv<>v<^v^>><^v^>^<>>^vv^vv^>v^<vvvvvv^>><^^<^v<^<v^<<^^<<v^<^>><>v><^v^v^^^v>v^<>^<<v<^^vvv<v>^^>^v^^<><vv^v^>v^<<>>vv<>>>>v>v<>^>>>v<>^^><v<v^^^<>^<^><>^><<v>><>^<<>>><<^<vvv<^><v>>^vv^v>><v<>vv^<<^^<<><v><<^<v<vv<<^v^vv>v^>>>v<<<<v<<>v>^vv<^v><v<v>v<^>^^vv>v><v>><<v<<v^v>>><>^<>><><<^<<^v^v<<v>v>v<v<^^>vv<^v^^^<v^<<<v<>v^><^v>^<^<v>>^<<<v>>v^<><>>^v<>vvv<vvvvv<^^><^>><^^>^>^v^vv<^><<^v>><^^v>^v<>^>vvvv><^>^<<v^^vv<v^^<><>v>^>>^<^<<<^v^^^>^>>^>><><<^>v^^<v>>v<<<<vvv<vvvv^<^<v^^<>^>vvv^<vv^v^v>^<<><v><^v^v^^^>^^>^vv<>v>>v^>vv^vv>v<^v^^>>^v^v<>>^^><<v<<>><>>>^>^<>^^v^^><^<>><<^<vv^^^^^>>vv^<v^<^>>>>v<<><<^>vv>vvv>^<><>>>>vv><<v^v<^^^<<^^^vv^<v<><><<<<>><<v^<>v>v^><>v^v^^><>v>v>^^v<^v<>>^^^^^<v>><v^>^^<v>><v^^>v<^<^>>>^><^^>><<>>^><>^^^>v^^^>^^v^<>^^><^>>><><^>>v<v^>v<^><v<v^<>v<^v>v^<^vv^^><<<><><^v^<v<^^>v>v^>>^^vv^<v>^v>^<^v<>^>^><^<v>^v><^<^<>v^^>^><>>><<v><<><>v<<^v^^<^><>^<><><v>v<^^<v<v>>^^<<>>^<v>><^><^<^>^^v<>v>>><><<>^>v><><<<<v^^^^v<>>^^^v>><<^v>^>>><vv^>>^vv<^<>>^<^^<^v>v<v<<<<<>^<<^<<<<<^<^>>^><<>><>v^v>^<^>v^<><vvv^>^v^v^v><^<v<>vv<<^<>^^^<>^v>^<v^^<v^v>v<>>^>v<<>v<>v^v>v<<<>>v>vv>>v<<>v<>v<^>^>^<v>>v>^>^^^<vv>v<<>>><v>^vvv^^>^^<^vv^^^^>v>^v^>v^^v^>>^v>^vv>^^v^<<<<>^<><^<^<<^^>v^^^v<>>vvv<v>>vv><v<v>^<^v>>^v<vv^<<v<vv><^^v^v>v<>^v<<<^^v^^^<^v>v^v^v>><vvv<<>v<>^v>vv^v>vv<<^v<v>^v>v>><^v<v<>v>>>><<<><vv><>^v^<^vvv>v<>><^v>^>><v>vv<><><>v><>>><^>vv>>^<>v^>>^><<<^><<>^v^>>><><>vv>^<>^>^v^^><^>>><<>v^<^vv>^<^vv>><v<>vv<v><><<^><>v<^^<^>vv^^^^vv<<v><>vv<><v>v<>>>>^><v><>^<><>v<>><<>^^vvv>^^^<><>>vvv^v>><>vv<vv>^^^v^<<>^^v<><<^^v<>^^>^<^^v>>v^v^^>>v>>>^<<^<>^>^^v>>>><vv<<>^v<<vv><<^^vv><^>vv<>>v<v>v^>v>>v^<vv<<<v><v^>vvv^^>vv^<<v>v^>>v^<>>><><<^^<^v>^>>>v>v>^v<>vv><vv<vvv<<v>v>^v<<<>><<><><>v^>>>v^>v^>>vv^^<v>^<>>><^>v^<>^^><v>v<><<<><v^v<<<v<v^>v^v>^>v<^<>v>v^^>>v>vv^v<>>^^^^<>v^>>>>>>>><v<^<<vvv<^v^>^v<^<<>>><<<^<<^>^>v^<>^<<<>v>><^vv^>^>^>>>^<vv><v^^^<v^<v<><v^vvv<>v<vvv^vv<<<v^<^<^vvvv^<<vv<^v><<>^>^<v^v^<^>v^><>>v^>v^>^>>v<>vv^v<<>^^>>vv<>vv>>^v<^vv>^v>v<v^vvv^<<^><>v^<><vv><>v^^><<<><>^>^v^<>><vv<^>v^v>v<>><v<<^>^<vv<^v>^<<v><^<^^vv^<>><v^>^vv^<>>^^^^v>v><^^^v^<<<>^<^<<>><>>v<<^v^>><><v^>>^vv^v>vv>>>>>>^^<<>v^>v^v>^^>>><vv^^^v>^v>>^^^<>><>v^<<<v<vv^^<v^<<<>v>v^^^<vv<>>^v>^v<^<<><>vv>^^^<^^vv<v<<vv>^^>vv>v<<^>^vv><^><v>^^^^v<<vv>v^<<^^>>^^vvvv^v^>vv>>v^<v>vvv<>>^><>>v^^>>^<>>vvvv^>><v^v<^^<^vv>>v<<^<<^><v^^><v^>v^>><<<v>v>v^>^v<v^vv<^^^v<^<vvvvv<<vvv>><>v<v<v<<^v<><<>vv>><v>><^>>^^v>^>><>vv^><<>>vv<<<^<^^>^<<^>>>><v<^v<<<>>v>vv<^>^v><>>v<v^v<>v^vvvv>v^>>v><<^<v>^^v>>vv^^>v>^v>^v^^>^<^vv<v<<^>vv<<^>>^<<^^>>^<^>v^><^vv>^^v><v^>>><>v^v>^v<^><<<>vv><v>v<><>>v^<>^^>^<>^<<^>>vv^><^<v<^^vvv>>v^>>v^>v>vv><>>v<^>><<<v<<vv><v<v<v>v<v>vv^vvv^vv^>^>v><vv<v^^<>>>>vv^>^<>v<^>^<^v>vv<^<<>>^<^<vv><^^<>^<<v^v^>v<<><v>v>><^v<<^vvv>v>v<<^^<^^>v<vv<v<v^v>^^^>^>vv<v<<^^v^<v<^>^^^vv>v<>>>vv>><><^><><<<vvv<<^^v^<v^<<^>>vv>vv^v^>>><v><<v^v>>v>>vv>^^vvv^>^^>^>^>^v<<^vv^>vvv^^vv><^>^v^>^><>v<^^vv<v><v^<><^<>><v>^^v^v>v^vv<>><^v>^<^v>^<>^v>>>><<vv^^^vv^>>><vv^v>>v><^v^vv><<^v<<>^^<v><^v>vvv<><^^><<^v><>^<^v<^^<^vvvv^^>>>>vv>v>>>v<v^><<<<v>>v^><v>>vv^v<vv<>vv<>vvv>>>><>>><>^v<v^v><vvv<<v^^v^v<>>><>>^vv<<v<><<vv<v^>^^vv><^v^v<v^vvv^v>v^^^vv>^><^vvv<<>^vvv^<v<v^v>>>>^<<<><<<<<^v<^^>>>>^>^<v^^^v<vvv<vv^<>v<<<^<^>>v^<v><<><<^^vvv^>v<>>^^>v>^v>>v<v><v>>>>^<^<^>v^v<vv<>^>><>^<<^vvv^^<>^<vvv<>v^>^^<<^>^vv><vvv>>v^v^>v><v>^<^^<>^>^>>>^^vvv^<<>v^<<>><>v<^<^>v^>^vv><v<^<<<^v>^>>^<^v^<<<<^v^><v^v>v^><<v<><<v^<<^<<v<<v><v><><^^^^>v>^^<v>>v<vvv<<<>><>>^><<><^<>>^^>vv<^><^v^><vvv>>>vvv<<vv^<^^^<^>^<>>^>>^v^<^^v>^<v<<>^^v<^vv^><vvv>>^v><<^<v^<><><>>^>vv<<>^^^v^^<v<>><>>vv>v^>vvv^^v<vv<^<^>>^>>^>>v^<<<v^>v^<^v^vv^><^<^v<<v<<>v>^v^<<<v^vv<v<<>^^<v>>>^<v<^>^^v<v>>>><vv<^^<<>><<v<v>^^v^>>^^>>^v^<^v>v^v^v^v^>v^vv<><>^^<>^><^^^<<<^<v>v<<>^<^^^^^v^<^<<^^>^vv<>v^>><>>^>v>v<>^>v<v^>>><>^<><v>>>^>^>>v^><v<>v><^vv^>v<<v>v<><<vv<<v>^><^<v^>v<<v^v<<><v><>v<v><>^^<v<>><<>v>vv<<v>^v<v>vv><><>vv^<<>^>^<^>>>^v>v<^v^^^vv<>>>^<<^>>><<^^v^>v^<^v>vvv>v^^vv>^^>>v<>^<<>^<><^^v^>><>^>v>>^^^<<^^v<>^^>^<>^>><^>^vvv><^>^<^>^>>vv<^>>^v>>^<>>^^>>>v^<v>>v<<v<^>>v^^vv>v><^v^^><vv^v<^>v<<>v^^<><>^>vvv><^^^>^v^>v>>^vvv<^vv>^^>^>>v<>><<^v<<v^>^><>vv^<<^^vv><v>>^<^><^<v>^v<v>^<<>^v^^>v^>>^^^<^vv>v^>>>vv<<>v>>>^>v^^<v^v^^v^>>v<v<<v>^<<>>vv<<^v>v<<vv<<^<^v<^<><^^>v>>v>v^>><vv<^v<^>^>>v>^><<^<<>^v<v>>><^^<^<<<v^^>^>vv<<>^<>^<v^<<^v>vv>^^^v<^v><v<<<<<vv>vv>^^^^>v>v><<^<<<^vv><^<<<><v>><v^v>v<<v^^<v^>v>^v^v^<^<^vv>vvv<^^v<>v<<<<>v<v^<vvv^^^<<^<^<<>^<<><<<>v<^>^^v<^^v^>vv>vvv>v><v^^<<>>^><^>>v<<vv>v<<^^^v<<^v^^><><<<><<>v>^<<>v<<<^v>><v^v<^v<v^vv>v>><<^<><^v^^v<v>^>^>vvvv<<><<>>^<vv>^^><v<>v>v<v^^>^><>>><^><<><<<^<>v^><vv^^^^>>^v^>v^<>>v>^^><^<^v^<v^>>v>^vvv<>>v<v^v><>^vvvv<v^<<v^<<^^vv>><<<<<<v><<<v<v^v^^<v^^<>v<<<<^v<<><<v^<^><v<vv<v^v^<v^^vv<v^v<<<>^<<>vv<v<^>^<<><vv<<vv<v<^<^<>><^^<<>>>vv>>>>>>^v<v<>>v^v^^<v^<<<<>><<^v^^^<>^<vv>>>><>v^v^vvv^>>v>><v^v<<<^v>>^^<<^^vv><<<^^^<<<v><^^>>>>vvv^v<^>^^>v<^<><vv<v<>v>>>^vv<<^<v>^v^>^>^v>v>v^v^>v<<v>><>><v^^<<^>>>><<^v^<>^v<vv><>vvv^>v>v<v<v^>^<><><>^>>><v<<<v^vv><>^>^^<<v^>>v^^>^<v>><>><>v^v^^v>>>>vv>>^v<<^v^<>^>v^^>^^<<vvvvvvv>^<v^<<^<<>><<<^^^v^^^^v<^<>v<^^<>vv^^v^<>^<<^>>v>v<<<^^^^vvv^<^<><>v<<v^<^<>>><<><<<v<v<v><vv>^^<vv<<vv<<<v<^>^^vv<v<>><<>>>^v<<>^>>>v^>v>^^<>^<vv<><^>v>^>>>><>^^>v^^v>^vv^^v^><<<>>v<>v<vv<vv^v^v<^v^<^^><<<><vv^^>^<^<<>v>>>>^<<v>v<v>vv<^><^<v><<^>v>>v><<v<<^v^<>>^>>>^v^v>v^^vv^>^<^^>>^><^vv^^vv^<>>^^^^<^^><><v<>>^>>^><vv^>^vvv<^<<v^^<<<>^><>>>^^<><v<v<><<v^^^^^<^<^<<>><<>>>>^<<>>>^<^v^>><<^>>>^<<v>^>><>^<v>^<><v>^v^^vv<><^>vv^^v^<^^^v^vvv^>><>>v<<vv<>>^<^vvv<<^^><vvv^^<v<>vv^^<<>><v>><^^vvv<<<^>^<><^>vv^><^<<>vv<<v>>vv>v>v^<vv><vv><<>^^^^v^^^^<v>^<<^><><^^v^>v>^>><^><<>v^<v>>>^vvv>>^<^<>^^v^vv^^v><<vv^<>>>v<<<>v>^<>v<<>v^>^<<><<><v<v<v<>v^>v<><^^>^<^v^^><^>vv>^>vv<v<^v>vv>^^><<>vv^>^v<<^<<^<<>v<v<^<v>v>>^><v^^v^v>>>><v^v^<<<vv<<^^<>>v^v<^v>v>^^^v<v><v^^^vv<>v^v<^<>v><><v^<>>vv>v><>v>^v<><<<<<<v<>>v^vv<<<<v<<v><^<>^>><>^^vv>^<^<<>vv>>vv<vvv>><><v<>><^<v>^><^<<v>><v><v>^<v>><>v^^^^v<v^^v<>^^vv<>v<>v>^vv^><v^<<^<>^<>^^^>v^>>>v><<^>>v<^v<>^^<v<><v^v<v>v<><v<vv><<>v<^<^>v<>v^>v>^^<<<^^vv^<><<<>>v>^^<>v>>>><v<v<^^^v<v<v^><<>v^v<>v>><<<<v^<><^<<^>^<vvv<v^^v>>v^vv^><^v^^<>^^><<v^>>vv>^<v^vv<^^v<>>vvv<^v^>>^<v<v>>^>^^<<^>^>^v><>>^<^^v>^>>^^<><>>>^^>^^vvv>v<^^<>v^v^^<v<<^<v^v^<<>v^v<v<<v<>>><<^^^>>v>^vv>^>^^v<>^^<>v^^<><v<v<vvv^<vv<<>v^><<><v<>vv<<^vvvv><<<v>v>v^>v^<>v^>^<v<vvv^>^<>^>^^v<>><<<><v<^^>^v<v>^^v^v<<<^v^<>^<>v>^^>v<v<v>v>^^<<<><<^>v<v<^vv^v><^^<<vv>^<<v><>^>>>>><v^v<<<^>^v^v<<v<>vvv<<>v>v>>^v^v^>><<<<>v^<v<><<>>>^>>^>><<v>
diff --git a/2015/03/solve.c b/2015/03/solve.c
new file mode 100644
index 0000000..8f4e9ad
--- /dev/null
+++ b/2015/03/solve.c
@@ -0,0 +1,97 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+#define FORLINE                                                                                    \
+	char *line = NULL;                                                                         \
+	size_t len = 0;                                                                            \
+	while (getline(&line, &len, fp) != EOF)
+#define FREELINE                                                                                   \
+	if (line)                                                                                  \
+	free(line)
+
+#define FORCH                                                                                      \
+	char ch = 0;                                                                               \
+	while ((ch = fgetc(fp)) != EOF)
+
+#define INFINITE 1024
+static int part_one(FILE *fp)
+{
+	int res = 1;
+	char houses[INFINITE * 2][INFINITE * 2] = { 0 };
+	int x = INFINITE, y = INFINITE;
+
+	houses[x][y] = 1;
+	FORCH
+	{
+		if (ch == '>')
+			x++;
+		else if (ch == '<')
+			x--;
+		else if (ch == '^')
+			y++;
+		else if (ch == 'v')
+			y--;
+
+		if (!houses[x][y]) {
+			houses[x][y] = 1;
+			res++;
+		}
+	}
+
+	return res;
+}
+
+static int part_two(FILE *fp)
+{
+	int res = 1;
+
+	char houses[INFINITE * 2][INFINITE * 2] = { 0 };
+	int rx = INFINITE, ry = INFINITE, sx = INFINITE, sy = INFINITE;
+
+	houses[sx][sy] = 1;
+	int robo = 0;
+	FORCH
+	{
+		int *x = robo ? &rx : &sx;
+		int *y = robo ? &ry : &sy;
+
+		if (ch == '>')
+			(*x)++;
+		else if (ch == '<')
+			(*x)--;
+		else if (ch == '^')
+			(*y)++;
+		else if (ch == 'v')
+			(*y)--;
+
+		if (!houses[*x][*y]) {
+			houses[*x][*y] = 1;
+			res++;
+		}
+
+		robo = !robo;
+	}
+
+	return res;
+}
+
+int main(int argc, char *argv[])
+{
+	(void)argc;
+	(void)argv;
+
+	FILE *fp = fopen("input", "r");
+	if (!fp)
+		exit(EXIT_FAILURE);
+
+	clock_t tic = clock();
+	printf("%d\n", part_one(fp));
+	rewind(fp);
+	printf("%d\n", part_two(fp));
+	clock_t toc = clock();
+	printf("TIME: %f seconds\n", (double)(toc - tic) / CLOCKS_PER_SEC);
+
+	fclose(fp);
+	return 0;
+}
diff --git a/2015/04/Makefile b/2015/04/Makefile
new file mode 100644
index 0000000..f757e4a
--- /dev/null
+++ b/2015/04/Makefile
@@ -0,0 +1,19 @@
+DEBUG = -Wno-error -Og -g -s -fsanitize=undefined -fsanitize=address -fstack-protector-all
+CFLAGS = -Wall -Wextra -Werror -Wshadow -Wpointer-arith -Wwrite-strings -Wredundant-decls -Wnested-externs -Wformat=2 -Wmissing-declarations -Wstrict-prototypes -Wmissing-prototypes -Wcast-qual -Wswitch-default -Wswitch-enum -Wunreachable-code -Wundef -Wold-style-definition -Wvla -pedantic-errors -Ofast
+
+# Not the best makefile but idc
+
+debug:
+	@gcc $(CFLAGS) $(DEBUG) solve.c -o solve.o
+
+build:
+	@gcc $(CFLAGS) solve.c -o solve.o
+
+clean:
+	@rm -f *.o
+
+run: debug
+	@./solve.o
+
+time: build
+	@./solve.o
diff --git a/2015/04/input b/2015/04/input
new file mode 100644
index 0000000..0f84c61
--- /dev/null
+++ b/2015/04/input
@@ -0,0 +1 @@
+iwrupvqb
diff --git a/2015/04/solve.c b/2015/04/solve.c
new file mode 100644
index 0000000..94246d4
--- /dev/null
+++ b/2015/04/solve.c
@@ -0,0 +1,118 @@
+#include <limits.h>
+#include <openssl/md5.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#define FORLINE                                                                                    \
+	char *line = NULL;                                                                         \
+	size_t len = 0;                                                                            \
+	while (getline(&line, &len, fp) != EOF)
+#define FREELINE                                                                                   \
+	if (line)                                                                                  \
+	free(line)
+
+#define FORCH                                                                                      \
+	char ch = 0;                                                                               \
+	while ((ch = fgetc(fp)) != EOF)
+
+#define WHOLE                                                                                      \
+	fseek(fp, 0, SEEK_END);                                                                    \
+	long fsize = ftell(fp);                                                                    \
+	fseek(fp, 0, SEEK_SET);                                                                    \
+	char *data = malloc(fsize + 1);                                                            \
+	fread(data, 1, fsize, fp);                                                                 \
+	data[fsize] = 0;                                                                           \
+	data[fsize--] = 0
+
+#define FREEWHOLE free(data)
+
+static int part_one(FILE *fp)
+{
+	int res = 0;
+
+	WHOLE;
+
+	char *string = malloc(fsize + 64);
+	strcpy(string, data);
+
+	while (1) {
+		res++;
+
+		int cnt = sprintf(string + fsize, "%d", res);
+
+		char out[64] = { 0 };
+		unsigned char *hash =
+			MD5((unsigned char *)string, fsize + cnt, (unsigned char *)out);
+		/* for (int i = 0; i < 16; i++) */
+		/* 	printf("%02x", hash[i]); */
+		/* putchar('\n'); */
+
+		int sum = 0;
+		for (int i = 0; i < 2; i++)
+			sum += hash[i];
+		sum += hash[2] & 0xf0;
+		if (sum == 0)
+			break;
+	}
+
+	free(string);
+	FREEWHOLE;
+
+	return res;
+}
+
+static int part_two(FILE *fp)
+{
+	int res = 0;
+
+	WHOLE;
+
+	char *string = malloc(fsize + 64);
+	strcpy(string, data);
+
+	while (1) {
+		res++;
+
+		int cnt = sprintf(string + fsize, "%d", res);
+
+		char out[64] = { 0 };
+		unsigned char *hash =
+			MD5((unsigned char *)string, fsize + cnt, (unsigned char *)out);
+		/* for (int i = 0; i < 16; i++) */
+		/* 	printf("%02x", hash[i]); */
+		/* putchar('\n'); */
+
+		int sum = 0;
+		for (int i = 0; i < 3; i++)
+			sum += hash[i];
+		if (sum == 0)
+			break;
+	}
+
+	free(string);
+	FREEWHOLE;
+
+	return res;
+}
+
+int main(int argc, char *argv[])
+{
+	(void)argc;
+	(void)argv;
+
+	FILE *fp = fopen("input", "r");
+	if (!fp)
+		exit(EXIT_FAILURE);
+
+	clock_t tic = clock();
+	printf("%d\n", part_one(fp));
+	rewind(fp);
+	printf("%d\n", part_two(fp));
+	clock_t toc = clock();
+	printf("TIME: %f seconds\n", (double)(toc - tic) / CLOCKS_PER_SEC);
+
+	fclose(fp);
+	return 0;
+}
diff --git a/2015/05/Makefile b/2015/05/Makefile
new file mode 100644
index 0000000..f757e4a
--- /dev/null
+++ b/2015/05/Makefile
@@ -0,0 +1,19 @@
+DEBUG = -Wno-error -Og -g -s -fsanitize=undefined -fsanitize=address -fstack-protector-all
+CFLAGS = -Wall -Wextra -Werror -Wshadow -Wpointer-arith -Wwrite-strings -Wredundant-decls -Wnested-externs -Wformat=2 -Wmissing-declarations -Wstrict-prototypes -Wmissing-prototypes -Wcast-qual -Wswitch-default -Wswitch-enum -Wunreachable-code -Wundef -Wold-style-definition -Wvla -pedantic-errors -Ofast
+
+# Not the best makefile but idc
+
+debug:
+	@gcc $(CFLAGS) $(DEBUG) solve.c -o solve.o
+
+build:
+	@gcc $(CFLAGS) solve.c -o solve.o
+
+clean:
+	@rm -f *.o
+
+run: debug
+	@./solve.o
+
+time: build
+	@./solve.o
diff --git a/2015/05/input b/2015/05/input
new file mode 100644
index 0000000..5642100
--- /dev/null
+++ b/2015/05/input
@@ -0,0 +1,1000 @@
+rthkunfaakmwmush
+qxlnvjguikqcyfzt
+sleaoasjspnjctqt
+lactpmehuhmzwfjl
+bvggvrdgjcspkkyj
+nwaceixfiasuzyoz
+hsapdhrxlqoiumqw
+lsitcmhlehasgejo
+hksifrqlsiqkzyex
+dfwuxtexmnvjyxqc
+iawwfwylyrcbxwak
+mamtkmvvaeeifnve
+qiqtuihvsaeebjkd
+skerkykytazvbupg
+kgnxaylpgbdzedoo
+plzkdktirhmumcuf
+pexcckdvsrahvbop
+jpocepxixeqjpigq
+vnsvxizubavwrhtc
+lqveclebkwnajppk
+ikbzllevuwxscogb
+xvfmkozbxzfuezjt
+ukeazxczeejwoxli
+tvtnlwcmhuezwney
+hoamfvwwcarfuqro
+wkvnmvqllphnsbnf
+kiggbamoppmfhmlf
+ughbudqakuskbiik
+avccmveveqwhnjdx
+llhqxueawluwmygt
+mgkgxnkunzbvakiz
+fwjbwmfxhkzmwtsq
+kzmtudrtznhutukg
+gtvnosbfetqiftmf
+aoifrnnzufvhcwuy
+cldmefgeuwlbxpof
+xdqfinwotmffynqz
+pajfvqhtlbhmyxai
+jkacnevnrxpgxqal
+esxqayxzvortsqgz
+glfoarwvkzgybqlz
+xdjcnevwhdfsnmma
+jyjktscromovdchb
+pvguwmhdvfxvapmz
+iheglsjvxmkzgdbu
+lwjioxdbyhqnwekv
+zcoguugygkwizryj
+ogvnripxxfeqpxdh
+hkvajhsbfnzsygbm
+cnjqeykecopwabpq
+wojjtbcjinoiuhsj
+kpwpvgxbyzczdzjq
+wrvhylisemlewgzk
+uiezkmnhilfzahtm
+mucteynnuxpxzmvt
+zaiwbgxefusfhmst
+apptbogpxivjwink
+qryboarjtwjhjgjb
+irehxupgyseaahzd
+fobstqxguyubggoh
+ysriumfghtxtfxwe
+auchdmasvfeliptw
+mztuhefcrnknyrdl
+tyjmkhihbwabjtaa
+yquzkdtgsljkaebw
+almvdvofjtkyzbmd
+emqftiuqqpdwwbrv
+hrrhmqfpepvbawvw
+atrkgykycvgxbpyb
+dhthetnealksbdan
+zzqafhgicubptiyo
+qdtaieaziwhbttnw
+kyskgapdgqrtrefw
+edwzlpqztpydmdlr
+awszjnlmvlyqsuvl
+kcrtmtshtsgixvcp
+jtaskgkijivbbkri
+mmggfwapsetemiuj
+itagrrnjbnmhgppd
+uqmbezechbrpbnqq
+nnyimvtascflpzsa
+knqeimypkdttyudj
+vgoiyvtvegwyxjjd
+qubzdxsbecktzrho
+zehojtvktsbbxijb
+xepmjrekwcgoxyoh
+bnptxnocbpbqbyeq
+sfvynsywscbnymos
+dsltfbpcmffbluba
+kncrlzlmkikylppa
+siwudrvmildgaozv
+jhhefbvbvneqzvtc
+lqjgztxitbuccqbp
+himmwlbhjqednltt
+vwognchyertnnfil
+eejakhapkbodrntf
+qxuijkkhhlskgrba
+aankpfxxicfpllog
+vuxykvljyqexfhrn
+epgygflbxlbwybzq
+zuxmwvetmvcszayc
+xttwhfqmemgtjnkf
+hftwldmivyfunfvl
+bejlyxfamzliilrj
+zkehazcxyyvtrxti
+dsgafehmcfpycvgz
+igremmqdojqdvwmb
+swnjzvmhcslvkmiw
+fchzbfbmtqtxmaef
+xwjmyyrlznxrcytq
+brwcwzpcvbwdrthl
+fvrlridacsiojdmb
+mhsturxdlmtxozvy
+usxvqyrwywdyvjvz
+gwazuslvmarfpnzm
+rgkbudaqsnolbcqo
+dpxvlbtavdhdedkj
+nnqmjzejhodyfgyd
+ozoazxkfhujgtzvy
+psdgvhzdiwnuaxpl
+tznkilxpogbzgijz
+wnpytcseirtborhh
+lhauurlfsmagfges
+oqfbzixnlywkzwwy
+yoehapoyjpakziom
+vtjftdcsfdzbmtrn
+zcshfnodiwixcwqj
+wapbxpaxgjvtntkm
+qfyypkyvblrtaenh
+bsxhbxkovgukhcza
+kitdmvpiwzdonoyy
+slkbhxmehzavbdsf
+dovzjouqkzkcmbkl
+qpbigdcqkfnfkxvq
+eaiaquhnesvtcdsv
+mhbezlhqojdsuryj
+dqprkkzxlghkoccx
+xqepmorryeivhrhm
+frwmrjpezwmjflvf
+gjpfgwghodfslwlf
+fzyvajisdjbhfthq
+pvzxkxdscdbilrdb
+mtaxmqcnagmplvnm
+rlyafujuuydrqwnc
+gvqvrcxwyohufehq
+lmrkircgfrfusmfd
+ovlpnkxcpimyaspb
+xhyjremmqhdqywju
+pxfczlhpzbypfarm
+utjhprzhtggausyp
+utzkkzlnyskjtlqh
+cecbcnxpazvkedic
+xwvoaggihrbhmijq
+krredhmtwlfmyagw
+lwfhxgbknhwudkzw
+vyczyvuxzmhxmdmn
+swcoaosyieqekwxx
+waohmlfdftjphpqw
+gaclbbfqtiqasijg
+ybcyaxhluxmiiagp
+xgtxadsytgaznndw
+wzqhtjqpaihyxksm
+fdwltsowtcsmsyhm
+rpoelfbsararhfja
+tswgdacgnlhzwcvz
+xjgbhdlxllgeigor
+ksgthvrewhesuvke
+whgooqirdjwsfhgi
+toztqrxzavxmjewp
+hbkayxxahipxnrtl
+lazimkmdnhrtflcu
+ndoudnupbotwqgmr
+niwuwyhnudxmnnlk
+hlmihzlrpnrtwekr
+wzkttdudlgbvhqnc
+rfyzzgytifkqlxjx
+skddrtwxcyvhmjtb
+mljspkvjxbuyhari
+xwkhozaoancnwaud
+nookruxkdffeymdz
+oiqfvpxmcplyfgoa
+qoxggshmrjlzarex
+lsroezewzkrwdchx
+nkoonmvdydgzspcl
+lygxeqztdqklabov
+jempjyzupwboieye
+hpdaqkhjiddzybly
+cvcizjlnzdjfjlbh
+vaaddsbkcgdjhbkj
+pjxmtxoyrkmpnenf
+ujqdvyqnkbusxlps
+miyvzkzqploqaceb
+gapcsbkulicvlnmo
+xqpcyriqhjhaeqlj
+ipumdjwlldzqhmgh
+swdstecnzttmehxe
+ucmqordmzgioclle
+aywgqhmqlrzcxmqx
+ptkgyitqanvjocjn
+wcesxtmzbzqedgfl
+rnetcouciqdesloe
+chpnkwfdjikqxwms
+onpyrjowcuzdtzfg
+tydnqwaqwkskcycz
+dhamguhmkjzzeduy
+oecllwyrlvsyeeuf
+gsukajpoewxhqzft
+sgdnffdixtxidkih
+pqqzjxzydcvwwkmw
+wnjltltufkgnrtgm
+hylaicyfrqwolnaq
+ovfnugjjwyfjunkm
+xknyzsebmqodvhcl
+uwfmrjzjvvzoaraw
+zaldjvlcnqbessds
+zphvjuctrsksouvz
+ceqbneqjwyshgyge
+wmelhaoylbyxcson
+nghuescieaujhgkj
+dhjmflwwnskrdpph
+exvanqpoofjgiubf
+aidkmnongrzjhsvn
+mdbtkyjzpthewycc
+izctbwnzorqwcqwz
+hrvludvulaopcbrv
+mrsjyjmjmbxyqbnz
+sjdqrffsybmijezd
+geozfiuqmentvlci
+duzieldieeomrmcg
+ehkbsecgugsulotm
+cymnfvxkxeatztuq
+bacrjsgrnbtmtmdl
+kbarcowlijtzvhfb
+uwietqeuupewbjav
+ypenynjeuhpshdxw
+fwwqvpgzquczqgso
+wjegagwkzhmxqmdi
+vocvrudgxdljwhcz
+nnytqwspstuwiqep
+axapfrlcanzgkpjs
+lklrjiszochmmepj
+gxadfpwiovjzsnpi
+qidsjxzgwoqdrfie
+wgszciclvsdxxoej
+kwewlmzxruoojlaq
+ywhahockhioribnz
+ucbqdveieawzucef
+mdyyzmfoaxmzddfv
+hsxnabxyqfzceijv
+vivruyvbrtaqeebr
+jxfeweptjtgvmcjc
+mmypqxmpurhculwd
+mpiaphksvctnryli
+xqzqnuxmuzylkkun
+fndmtefjxxcygtji
+dnorqlldvzqprird
+nutokyajmjpwjaqu
+vlupfperqyqkjcaj
+dgihjeokrphkpdnk
+nvbdyrlheqzixuku
+mhrkntnxvsmvrpka
+kvhkyanlhhymwljf
+fhipumtegqfgeqqw
+vpfjgveycdefuabu
+kzincljffncylcsf
+tsezxymwmjtyegqw
+wxhcdrqedkdcwxli
+ueihvxviirnooomi
+kfelyctfvwyovlyh
+horzapuapgtvzizz
+iiqkdpmfvhwwzmtj
+rsaclclupiicstff
+quwkkhrafypkaoum
+gyrgkgmwqfkeudfe
+noydhbqacwptyfmy
+efwwuipzgtkwffhf
+suyojcitomdxsduh
+lbcxnsykojkufkml
+zpglsvoutvzkgdep
+usgrufyvgsbsmbpr
+katrrwuhwvunjqor
+btngwrpcxoyfbgbc
+bxjscjdiowjrkpns
+nwxvnfrnlkgqxvhf
+ikhyqkvljucgdlag
+xibnxsjopmxvflkl
+mzplumcfivqcjqnz
+jqflcxoxzlbwlxry
+fcscvmfepdxrshxe
+wlpffwunffklzbuc
+emvrlqajjgwzfmle
+rhaheurtzrfoqkyq
+ifuuhpxmadaysfsx
+ncyfvleyzqntpcoo
+zeogmyaqccmtvokd
+jqppbzebppdnpurn
+xixarswxsiwjzgni
+ezruwzajsoombphs
+hmiqfeizyprielxf
+jnaoxljnftymsfey
+extgzrxzovlsixnf
+yhyfmovvlrwoezsv
+ffnybaolppuzpjym
+pqowimdiusccaagn
+jgceiosiihpjsmnu
+hkoexeaopebktngx
+njhzuvsygymejqav
+yjkgcclgtvushcfk
+gmbjxhnkkxlihups
+pdlwysadiebsidjz
+omrwmgzulfoaqros
+ofvvgdezwvcffdcy
+otytpuklhxcpxhgd
+eyfaosxdauumvlux
+mvdthjfstrlqlyuo
+mdgdchgnlxaxspdm
+bakjezmhbwqxzevd
+msakswaphdwaodhg
+vjcqscgdbnsxdllh
+jjywaovewbuzreoj
+nqvplhwacylifvwk
+lpwmpixbxysmsign
+flcvbpxrchcpbgcb
+qjpkeuenenwawlok
+bnqkflfmdmntctya
+fzsgzpoqixvpsneq
+icwfdisutoilejld
+relchofohnkwbumi
+aljalgdaqwhzhfwr
+cahkvnwnbwhodpqs
+dnrzeunxiattlvdm
+nsmkhlrpwlunppjs
+mqqsexlwfqnogwub
+tfavelkqrtndpait
+ooguafrnmprfxcnz
+ntynkiordzxtwrqa
+rkkyzlxekqqlkvym
+ofxcivdnwcmgfnme
+ywotqwbrqxlrnobh
+nrbbiypwhrqihvev
+flqsjixxtydheufs
+lcfrfzypstrqctja
+hyzbuzawuzjrynny
+exfbywcnstebnvmq
+vydzwnbmcihvqrnj
+qmwqaaylinzrdmiw
+lpxpztpvfggspeun
+lhxmqqbracsuyrfm
+zgkwsrabaseidbrw
+yjlmbhbqsqgszsun
+mqfzqtbxtuteabtd
+izomzdmcqmfrevwd
+iqijrlqurdwrkoln
+fxhqzpgoxxjkkhql
+oulwontmgrjeopnk
+edaigfydjexvzzvj
+vjhybiklxpxjqpwc
+ypxfbfnpbmqmwtte
+xzvcsgasztrxdzud
+rpulqmobptfarboo
+palacmdijxzzykrf
+jmllwukplufohiby
+dnswayomusiekfmy
+sxbrjqtqgzzwhcfo
+lylvndsgbnbqiejm
+jaxxhoulxnxnaenr
+nblissutfazbcpwn
+zmlsjszzldvbiacr
+kewojtlchfkclqwk
+eqvfjasddggvfame
+yibzqlvxtraxpdon
+dgnbxsbmdrtyvaac
+uoxrcxfimhgtxqhy
+xfdxalrwcwudlviq
+xmtbdklqptoswpwl
+zezyopzdztdjerfl
+xuzluhjsqvhytgbc
+qdjtmeckispmgzki
+phakupesplzmmmvc
+gpuoqfffumzszybn
+bhywxqkrrlwuebbw
+ibvwgoyvelzenkzl
+ncohvvbmiekbaksa
+fzuvqzvxvdbeirrp
+lshtzniokucwojjd
+punrduvlnrulkium
+gnfpikidnfobrrme
+vxkvweekmnvkzgyl
+rhydssudkcjlqgxn
+cjtqvlaahohcgumo
+jwzmfyinsfwecgcb
+blpeseqhlzfilpuf
+jvtpjkyokzcvagon
+qjomincbcobjczpe
+ugsyzkzgdhxtmsfz
+hleaqgwzqjwajcra
+coumfghptpnxvvov
+hqpnbupnzwpdvgqd
+cpouyodqxgviasem
+lljvxeyozckifhfd
+huqtnvutdyfgwtwa
+yenlveuynmlmmymu
+ojdyufkomxiwjmbf
+spjzgvcwvzgffjkk
+vxykmjhyvmhyssbp
+tazdeqggfcjfvwwn
+uumwcngwcytvpufx
+avovuzkrevloneop
+owczrtbnrvjfemkt
+hzpugcanaxyvaokj
+iishlodnxvjtgzyn
+qosdonclrnxirham
+eonqlnwevahydddg
+ryqmnuikftlxuoqy
+whqepbcwabzbthha
+vekisvnwhgpyemxr
+lrwxzoamnvpnlhap
+ywepvqthnorfswjv
+evqwvsoazmwyypjy
+bgwoojddubppmjxf
+jypkfrthzgtyeddi
+tynabbhfjzkrqsju
+adxstbfqheuqbcuk
+gqwqiocdyqoiblrx
+ybuddlyuskdlegxv
+luwynbsmpgyeqsbr
+ltyqgqoyljibqndo
+jaedpajzphfybajh
+epglnrxofptsqvmy
+zjdpxkngfkstxbxh
+ekegphcwanoickfu
+cqvhuucvejqirvfs
+uqudnnqumsqcgefo
+qnzunermlnpcfflo
+ovyxaniqaawzfuxx
+djekxcezjowdhopq
+bwtwbmdehrhpjnlk
+nilsnlacerweikfa
+hyrigsrmsrzcyaus
+gvmdmgddduylmxic
+ewzovdblhmjgjwsk
+ojjfsknlonzguzlq
+yjgfruvpjvlvrvvq
+cyoryodwyhzwprbv
+crsjclrurcquqgut
+sjhfhobwtojxcmem
+ibxfjudilmdeksea
+uqbhdbjoeupyhbcz
+uqbxigzxuxgmjgnw
+jashafmtzrhswirg
+dexiolovaucyooka
+czjbwwnlwcoqnoiu
+ojigosazigfhttjc
+zfiqtgrqbmftknzn
+dlzbmvmolssbqlzl
+sgmchcurrutdtsmw
+scdwjqsdohcdrwry
+cgtdvecqwplpprxn
+iiplenflfczaktwi
+wmgnwfxfcjhyeiqg
+giihshowtcatecvl
+nqhzfincclumvkaz
+kxstpzgdfvepionc
+agbhxcijxjxerxyi
+hmgfqevgdyvisyvs
+tthakmvpowpvhtao
+ottalcghygpaafbo
+aplvozayycremgqg
+dbjxlnaouxqtdpfz
+peeyallzjsdvpalc
+ndtdjyboixuyhfox
+llabnbcobexfoldn
+cweuvfnfyumbjvxr
+ewkhhepaosalnvkk
+pivyiwsiqpwhagyx
+auzsnwdcerfttawt
+grbfrekupciuzkrt
+byfwzadtzrbndluf
+lluypxjeljzquptk
+pskwsnhqanemtfou
+sxvrtqqjdjkfhhrm
+ulsmqgmshvijyeqh
+qigofesfhekoftkf
+zhatniakqtqcxyqa
+uuczvylgnxkenqee
+mlitvtuxknihmisc
+srrtrxdvcokpyfmz
+osispuucklxcfkeb
+vqhazlaulmnpipql
+umkiueljberqhdig
+knvpbkbvgoqzwprp
+nbsocqikhuvsbloj
+wjnpepjkzkednqbm
+agbhmytsofuyqcor
+gvogzhkkpxyfecko
+ardafguxifeipxcn
+yiajcskbgykyzzkw
+sejunbydztyibnpq
+dqrgfggwcnxeiygy
+xnqqwilzfbhcweel
+jjtifhlvmyfxajqi
+gwszrpgpmbpiwhek
+kydzftzgcidiohfd
+efprvslgkhboujic
+kecjdfwqimkzuynx
+rildnxnexlvrvxts
+dlnhjbqjrzpfgjlk
+qluoxmzyhkbyvhub
+crydevvrjfmsypbi
+dosaftwumofnjvix
+pwsqxrfwigeffvef
+nzyfmnpwqyygjvfx
+iccbckrkxlwjsjat
+bmputypderxzrwab
+bhuakynbwnlreixb
+qmrzfyqjiwaawvvk
+juvtixbkwyludftn
+zapmjxmuvhuqlfol
+paiwrqjhpjavuivm
+tsepfbiqhhkbyriz
+jpprewufiogxoygk
+mmapyxbsugcsngef
+pduhmgnepnpsshnh
+aetndoqjvqyjrwut
+fnfvlorhwpkkemhz
+gedfidpwvoeazztl
+beclvhospgtowaue
+wsclsvthxustmczm
+tjbxhnpniuikijhe
+rhetyhvfcemponeg
+mavonujurprbeexi
+argbrpomztrdyasa
+bzvtffbtygjxmkvh
+maqyqkhsqgzfzvve
+seeirbiynilkhfcr
+wxmanwnozfrlxhwr
+dieulypsobhuvswb
+nxevassztkpnvxtb
+jclxuynjsrezvlcy
+xlolzyvgmwjsbmyf
+tguzoeybelluxwxc
+fkchoysvdoaasykz
+cyynwbfcqpqapldf
+rhifmzpddjykktuy
+ndvufsyusbxcsotm
+txutnzvdsorrixgg
+qjoczhukbliojneu
+ufhwujotncovjjsz
+kclsgsdwcrxsycbr
+yscwmlrdaueniiic
+nxhivrovpkgsmugb
+fdxqfyvwwvgeuqkv
+femtamfylysohmpr
+amsyzslvyxsoribh
+nhmqxncwsonhgbcz
+uomqsvcbpthlmcue
+kxtfapcqrnjkkslj
+xtieihonlfubeync
+adpcjqxgydulchgj
+cjynnzsmmujsxxpd
+neeapmzweidordog
+szoivgqyqwnyjsnk
+uwgrtzaqezgphdcu
+ptpgttqxocjwxohi
+fhltebsizfwzpgpf
+emmsazsidspkhgnh
+dxcprkbcjeqxqzgn
+tpxzqwxbzwigdtlt
+afsmksnmzustfqyt
+xyehnftstacyfpit
+vcrfqumhjcmnurlw
+rrznpjzcjgnugoch
+gbxnzkwsjmepvgzk
+jwobshgwerborffm
+zmuvfkhohoznmifs
+buyuwgynbtujtura
+bevncenmpxfyzwtf
+hqqtcrhzfsrcutjh
+kbpzshllpiowepgc
+alspewedcukgtvso
+xvsvzzdcgjuvutrw
+pmwulqraatlbuski
+abuzsiinbueowpqn
+oedruzahyfuchijk
+avhcuhqqjuqkesoq
+azqgplkzsawkvnhb
+rjyoydogkzohhcvx
+aezxwucqvqxuqotb
+kxobnsjvzvenyhbu
+nnjoiilshoavzwly
+aijttlxjrqwaewgk
+cvsaujkqfoixarsw
+zngtoacpxcsplgal
+qhkxliqtokvepcdv
+aixihrtdmxkfvcqw
+owbgdgdymxhhnoum
+tajsagmruwzuakkd
+ckrfduwmsodeuebj
+alfdhuijuwyufnne
+xpchlkijwuftgmnm
+rwcrvgphistiihlg
+xdaksnorrnkihreq
+akeschycpnyyuiug
+rgputhzsvngfuovz
+lerknhznuxzdhvre
+mqiqmyladulbkzve
+csnmupielbbpyops
+kwgrwgmhfzjbwxxz
+npwtvbslvlxvtjsd
+zxleuskblzjfmxgf
+hexvporkmherrtrn
+rhtdhcagicfndmbm
+qhnzyuswqwoobuzz
+dpvanjuofrbueoza
+kjcqujmnhkjdmrrf
+gholddsspmxtpybg
+jihlvyqdyzkshfsi
+zuviqmuqqfmtneur
+kzexjowatvkohrtx
+wgijnfhibsiruvnl
+zevkrkmhsxmicijb
+khxrcteqourjvoxa
+ylpxlkcnenbxxtta
+zrfsvctbojjkpvtw
+nlzbudxibnmcrxbt
+cqnscphbicqmyrex
+ywvdohheukipshcw
+riwatbvjqstubssf
+idlztqqaxzjiyllu
+sdpdgzemlqtizgxn
+rjtbovqlgcgojyjx
+fnfrfwujmjwdrbdr
+osnppzzmrpxmdhtj
+ljhwngclvydkwyoe
+chwqkrkzrvjwarat
+jmydkwpibkvmqlgs
+zvhfmbxnlxtujpcz
+jsnhsphowlqupqwj
+fzhkkbpasthopdev
+jerntjdsspdstyhf
+gctwmaywbyrzwdxz
+xemeaiuzlctijykr
+xulrqevtbhplmgxc
+yfejfizzsycecqpu
+gboxrvvxyzcowtzm
+lpvhcxtchwvpgaxp
+wdiwucbdyxwnjdqf
+qgwoqazzjlvnjrwj
+prtlnkakjfqcjngn
+fagvxsvjpuvqxniz
+xacmxveueaakfbsm
+ginvtonnfbnugkpz
+qpvggsppewfzvwin
+reoqnlzruyyfraxa
+kolwtqhifjbbuzor
+vrkcywvdhdprztww
+ngdvyfmvjqhbzbxt
+rooxeoilqzqjunmp
+efxmdprtogtxgyqs
+qrhjuqndgurcmwgu
+ouitjprueefafzpl
+kirdwcksqrbwbchp
+fpumsmogojuywezo
+lgjrgykywugzjees
+xigioqcpjabpbdas
+ewkhuprpqzikmeop
+fgrgxsqeducigxvr
+bclkursnqkzmjihl
+jozidniwvnqhvsbc
+oghcilcyozrmmpta
+xbgmaungzcpasapi
+iqowypfiayzbcvhv
+opdehgwdgkocrgkf
+zfzvdjeinlegcjba
+vhakxvlcayuzukap
+xyradgyiebpevnwe
+eamhtflgedwyshkn
+igteqdgchjeulfth
+kwsfkigxzpbgdxod
+vapnpsbdboiewpzp
+wbuqhjsngxpqshen
+vxxilouxuytitwgm
+cpnwlkwnkeanqnet
+wdmbtqvvlowftvgb
+wjtmcecpyqzwpbqg
+jnxmoxdhvsphcdeg
+wabxfxpotoywwodn
+mwbsoxzlqpqobvvh
+coktshbyzjkxnwlt
+rzhnggpslwzvyqrp
+dgzuqbzarbutlkfx
+wunajaiiwgijfvjh
+uotdbcgmsvbsfqlb
+kxdtlgmqbccjqldb
+ngmjzjwvwbegehfr
+cvpsabqfpyygwncs
+wqluvqlhdhskgmzj
+rbveperybfntcfxs
+fbmoypqdyyvqyknz
+zxpgzwnvmuvkbgov
+yexcyzhyrpluxfbj
+ltqaihhstpzgyiou
+munhsdsfkjebdicd
+plecvjctydfbanep
+kjrxnnlqrpcieuwx
+zbcdtcqakhobuscf
+kgovoohchranhmsh
+llxufffkyvuxcmfx
+tgaswqyzqopfvxtw
+kojcqjkdpzvbtjtv
+xggdlkmkrsygzcfk
+vvitpsnjtdqwyzhh
+gcqjuwytlhxsecci
+vbsghygcsokphnrg
+vejqximdopiztjjm
+hudqtwmwkviiuslp
+vwswfvpcwwpxlyry
+gxmfiehdxptweweq
+qjmekjdcedfasopf
+pqyxdxtryfnihphf
+felnavctjjojdlgp
+hbimufguekgdxdac
+dhxhtnqgfczywxlr
+pssottpdjxkejjrh
+edieanguabapxyig
+sciinanyqblrbzbb
+irxpsorkpcpahiqi
+qsxecaykkmtfisei
+ivfwlvxlbnrzixff
+hqxzzfulfxpmivcw
+vvbpaepmhmvqykdg
+cetgicjasozykgje
+wuetifzdarhwmhji
+gaozwhpoickokgby
+eldnodziomvdfbuv
+favpaqktqaqgixtv
+twbcobsayaecyxvu
+lzyzjihydpfjgqev
+wnurwckqgufskuoh
+fxogtycnnmcbgvqz
+aetositiahrhzidz
+dyklsmlyvgcmtswr
+ykaxtdkjqevtttbx
+kfmnceyxyhiczzjm
+nnizopcndipffpko
+yjmznhzyfinpmvkb
+sljegcvvbnjhhwdd
+zmkeadxlwhfahpwg
+rwvcogvegcohcrmx
+aguqwrfymwbpscau
+vlusytjagzvsnbwe
+smvzhburcgvqtklh
+rfuprvjkhazrcxpv
+megqlnoqmymcrclc
+gvldhkewtmlwqvqv
+awynhvtyziemnjoa
+voprnvtnzspfvpeh
+dhlguqwmunbbekih
+goayirdhnjrfuiqi
+eoghydfykxdslohz
+chpippjykogxpbxq
+hqbycjweqczwjwgf
+pvefsrvwumrlvhmt
+eghwdovaynmctktk
+crwkxoucibumzawc
+bzbtahvhkdigvvtj
+bnbptgihhfubxhho
+ddqmbwyfmfnjjaro
+gvtswqyzazihctif
+vmqctjpgadxztqqb
+dgnndowtpeooaqqf
+sxdvctfdtalufxty
+ylgeexosibsmmckw
+sxplpyskbpqnojvw
+coarhxtsvrontyeg
+fyoaurggjupvzvlv
+jlyrkqsiwuggvjem
+uwbsjoxonreuucyi
+gihuqvwxovbgokes
+dxzaaxupbcgnxcwf
+gidrgmvyrlqqslve
+csflmlvqmonoywpx
+jkxkpixlythlacnk
+ejkarcdkdslldugv
+dbzmsusevohhjkmr
+cbrqzualjpdtworc
+kpgidqlmcbpfmmwu
+zwghjuofexfowqam
+ncdlxmcrsmsocetz
+kfprzqacefifjkbd
+swwzivrxulkhvldc
+wgqejhigbjwunscp
+rsstnwcyybfauqxu
+qhngfxyhdqopyfgk
+zrndpyyejsmqsiaj
+xxknxwpvafxiwwjc
+mmaahwgoiwbxloem
+tabacndyodmpuovp
+yriwomauudscvdce
+duvyscvfidmtcugl
+mgipxnqlfpjdilge
+imeeqcdetjuhfjnw
+dvkutrdofpulqkyh
+jefvtlktxegpmbya
+iyzudqgpvlzjfydh
+giohapxnpaqayryd
+qheqdprmnqlpztls
+rdxhijmzegxkotoq
+hdnmaspumdwnrcdz
+wafpbgehbuzdgsnc
+tbtrfztsferdmhsy
+vusndcyjngtkrtmk
+ilqblestzxebcifh
+urfgjbjgzlrfsdlv
+aptcdvpsqwleqttn
+bigczjvzokvfofiw
+zjnjeufonyqgkbpx
+trcdebioegfqrrdi
+jrdvdriujlmbqewt
+jqrcmuxpwurdhaue
+yjlermsgruublkly
+zwarvgszuqeesuwq
+xthhhqzwvqiyctvs
+mzwwaxnbdxhajyyv
+nclsozlqrjvqifyi
+gcnyqmhezcqvksqw
+deuakiskeuwdfxwp
+tclkbhqqcydlgrrl
+qbpndlfjayowkcrx
+apjhkutpoiegnxfx
+oaupiimsplsvcsie
+sdmxrufyhztxzgmt
+ukfoinnlbqrgzdeh
+azosvwtcipqzckns
+mydyeqsimocdikzn
+itfmfjrclmglcrkc
+swknpgysfscdrnop
+shyyuvvldmqheuiv
+tljrjohwhhekyhle
+dayinwzuvzimvzjw
+qgylixuuervyylur
+klqqaiemurawmaaz
+hdmzgtxxjabplxvf
+xiivzelzdjjtkhnj
+ktgplkzblgxwrnvo
+gvbpyofzodnknytd
+lqhlmnmhakqeffqw
+ltzdbngrcxwuxecy
+obxnfjeebvovjcjz
+zexpwallpocrxpvp
+tjpkkmcqbbkxaiak
+qiedfixxgvciblih
+qcxkhghosuslbyih
+gnsfidwhzaxjufgm
+xrghwgvyjakkzidw
+tftftwedtecglavz
+wquqczzkzqrlfngr
+twibtkijpvzbsfro
+bmplypdsvzuhrjxp
+zanrfmestvqpwbuh
+zonrhfqowyimcukm
+kpvajjfmqpbhrjma
+kujzluicngigjbtp
+iusguantsrwxdjal
+kwxeuylcnszswahw
+visdhnkobxnemldu
+rogeadmmaicwtabl
+pxqycifbgevqudvs
+osaiozyvlyddylqr
+vffjxrolrpuxcatx
+jbmsetccdrywssjd
+qgxyhjfpbfifmvgc
+npejgalglldxjdhs
+mbbtqgmttastrlck
+whapaqwdtpkropek
+dulbdboxazfyjgkg
+xaymnudlozbykgow
+lebvqmxeaymkkfoy
+bmicnfuubkregouj
+dieatyxxxlvhneoj
+yglaapcsnsbuvrva
+bbpjaslqpzqcwkpk
+xehuznbayagrbhnd
+ikqmeovaurmqfuvr
+ylyokwuzxltvxmgv
+hqtfinrkllhqtoiz
+pjmhtigznoaejifx
+fqdbmowkjtmvvrmx
+uvqtqfoulvzozfxv
+rpajajukuxtchrjd
+sznucejifktvxdre
+ufvibsmoushmjbne
+xirdqoshngthfvax
+iafpkddchsgdqmzl
+vmualmlduipvykzh
+fnmuahmblwyceejb
+ilsaapnswfoymiov
+lenvylifraahaclv
+cukqxlipuyxedqfh
+zgwecslpniqvtvuz
+cdcdfpsxuyrhsmag
+dszjinhantnxgqra
+ioimwotsgnjeacgt
+dqcymnvjystbynhp
+yibaudyfefbfgunx
+cabslcvunjavqkbf
+goymzvmgkvlsmugf
+zxteiitpthzskjjx
+agnxcnaqhjhlurzs
+cvmgyxhhnykuxbmb
+cgqmjexydmvgwxpp
+sygjajofieojiuna
+clpvxbrbjvqfbzvu
+cbntswqynsdqnhyv
+bztpbtwbefiotkfa
+pnxccbgajvhyeybu
+asyzrvgzumtuissa
+facjyblvcqqginxa
+rvwnucnbsvberxuv
+ghrbeykzrxclasie
+ekujtselepgjtaql
+krtrzsmduhsifyiw
+ticjswvsnyrwhpnt
+clmjhsftkfjzwyke
+lbxlcixxcztddlam
+xhfeekmxgbloguri
+azxqwlucwhahtvep
+kitdjrwmockhksow
+keznwwcusgbtvfrs
+ljvzxoywcofgwajj
+vebjnhnkcfzbhrcw
+eqfcxkavstxcuels
+ldattkyawjrvcido
+bsqqeilshcwtqyil
+foqqsxahfiozcqrw
+liswfmuhzfbyzjhf
+sulbdcyzmolapfbs
+zuggzkelwxjpsgxb
+betioxrgtnhpivcw
+xmtbixstdipibhgs
+ttvurgqmulryyaji
+viobnljznzppfmxw
+qlzabfopydtxrlet
+tusvydegfxhaxolk
+thoufvvfjferxhwp
+cfyyzppfarjiilbs
+jwmhxtgafkkgseqs
+pqwuuaxbeklodwpt
+vndyveahdiwgkjyx
+ssrjgasfhdouwyoh
+thbavfcisgvvyekf
+yjdvxmubvqadgypa
+tlbmcxaelkouhsvu
+bonohfnlboxiezzr
+rktlxcbkhewyvcjl
+rsmoutcbcssodvsc
+qszdratuxcrhsvoh
+eypyfahpuzqwzwhi
+yhkrleqmqlmwdnio
+vpnvxusvmngsobmq
+hkzyhopvxrsimzys
+dblriiwnrvnhxykl
+xkriqxkrprjwpncs
+rcymltrbszhyhqti
+mzbvneplsnpiztzn
+vkqtnptgbqefvfoc
+nwdtfiaozkcjtlax
+crximadpvdaccrsm
+lrbajafxwwnxvbei
+rbexzesrytpwwmjf
+stxwjarildpnzfpg
+btamaihdivrhhrrv
+acqbucebpaulpotl
+dkjhzghxxtxgdpvm
+rsbzwsnvlpqzyjir
+mizypbwvpgqoiams
+nvrslorjpqaasudn
+wvexcpzmconqkbvk
+rfwfumhjwzrvdzam
+eaghdaqorkhdsmth
+gtuntmpqaivosewh
+nzlsmdgjrigghrmy
+dhuvxwobpzbuwjgk
+kkcuvbezftvkhebf
+aeediumxyljbuyqu
+rfkpqeekjezejtjc
+wkzasuyckmgwddwy
+eixpkpdhsjmynxhi
+elrlnndorggmmhmx
+ayxwhkxahljoxggy
+mtzvvwmwexkberaw
+evpktriyydxvdhpx
+otznecuqsfagruls
+vrdykpyebzyblnut
+cnriedolerlhbqjy
+uajaprnrrkvggqgx
+xdlxuguloojvskjq
+mfifrjamczjncuym
+otmgvsykuuxrluky
+oiuroieurpyejuvm
diff --git a/2015/05/solve.c b/2015/05/solve.c
new file mode 100644
index 0000000..3ae59f9
--- /dev/null
+++ b/2015/05/solve.c
@@ -0,0 +1,105 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+#define FORLINE                                                                                    \
+	char *line = NULL;                                                                         \
+	size_t len = 0;                                                                            \
+	while (getline(&line, &len, fp) != EOF)
+#define FREELINE                                                                                   \
+	if (line)                                                                                  \
+	free(line)
+
+#define FORCH                                                                                      \
+	char ch = 0;                                                                               \
+	while ((ch = fgetc(fp)) != EOF)
+
+#define FORP for (const char *p = line; *p && p; p++)
+
+#define WHOLE                                                                                      \
+	fseek(fp, 0, SEEK_END);                                                                    \
+	long fsize = ftell(fp);                                                                    \
+	fseek(fp, 0, SEEK_SET);                                                                    \
+	char *data = malloc(fsize + 1);                                                            \
+	fread(data, 1, fsize, fp);                                                                 \
+	data[fsize] = 0;
+/* data[fsize--] = 0 */
+
+static int part_one(FILE *fp)
+{
+	int res = 0;
+
+	FORLINE
+	{
+		int vowels = 0, dub = 0, illegal = 0;
+		FORP
+		{
+			if (*p == 'a' || *p == 'e' || *p == 'i' || *p == 'o' || *p == 'u')
+				vowels++;
+
+			if (p - line > 1 && *p == *(p - 1))
+				dub++;
+
+			if (p - line > 1 &&
+			    ((*(p - 1) == 'a' && *p == 'b') || (*(p - 1) == 'c' && *p == 'd') ||
+			     (*(p - 1) == 'p' && *p == 'q') || (*(p - 1) == 'x' && *p == 'y'))) {
+				illegal = 1;
+				break;
+			}
+		}
+
+		if (vowels >= 3 && dub >= 1 && !illegal)
+			res++;
+	}
+	FREELINE;
+
+	return res;
+}
+
+static int part_two(FILE *fp)
+{
+	int res = 0;
+
+	FORLINE
+	{
+		char dub[26] = { 0 };
+		int betw = 0;
+		FORP
+		{
+			// TODO: Dub
+			if (p - line > 2 && *p == *(p - 2))
+				betw++;
+		}
+
+		int dub_cnt = 0;
+		for (int i = 0; i < 26; i++)
+			if (dub[i] >= 2)
+				dub_cnt++;
+
+		if (dub_cnt >= 1 && betw)
+			res++;
+	}
+	FREELINE;
+
+	return res;
+}
+
+int main(int argc, char *argv[])
+{
+	(void)argc;
+	(void)argv;
+
+	FILE *fp = fopen("input", "r");
+	if (!fp)
+		exit(EXIT_FAILURE);
+
+	clock_t tic = clock();
+	printf("%d\n", part_one(fp));
+	rewind(fp);
+	printf("%d\n", part_two(fp));
+	clock_t toc = clock();
+	printf("TIME: %f seconds\n", (double)(toc - tic) / CLOCKS_PER_SEC);
+
+	fclose(fp);
+	return 0;
+}
diff --git a/template/c/Makefile b/template/c/Makefile
new file mode 100644
index 0000000..4a881b7
--- /dev/null
+++ b/template/c/Makefile
@@ -0,0 +1,19 @@
+DEBUG = -Wno-error -Og -g -s -fsanitize=undefined -fsanitize=address -fstack-protector-all
+CFLAGS = -Wall -Wextra -Werror -Wshadow -Wpointer-arith -Wwrite-strings -Wredundant-decls -Wnested-externs -Wformat=2 -Wmissing-declarations -Wstrict-prototypes -Wmissing-prototypes -Wcast-qual -Wswitch-default -Wswitch-enum -Wunreachable-code -Wundef -Wold-style-definition -Wvla -pedantic-errors -Ofast
+
+# Not the best makefile but idc
+
+debug:
+	@gcc $(CFLAGS) $(DEBUG) solve.c -o solve.o -L/usr/lib -lcrypto
+
+build:
+	@gcc $(CFLAGS) solve.c -o solve.o -L/usr/lib -lcrypto
+
+clean:
+	@rm -f *.o
+
+run: debug
+	@./solve.o
+
+time: build
+	@./solve.o
diff --git a/template/c/input b/template/c/input
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/template/c/input
diff --git a/template/c/solve.c b/template/c/solve.c
new file mode 100644
index 0000000..c71182e
--- /dev/null
+++ b/template/c/solve.c
@@ -0,0 +1,58 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+#define FORLINE                                                                                    \
+	char *line = NULL;                                                                         \
+	size_t len = 0;                                                                            \
+	while (getline(&line, &len, fp) != EOF)
+#define FREELINE                                                                                   \
+	if (line)                                                                                  \
+	free(line)
+
+#define FORCH                                                                                      \
+	char ch = 0;                                                                               \
+	while ((ch = fgetc(fp)) != EOF)
+
+#define WHOLE                                                                                      \
+	fseek(fp, 0, SEEK_END);                                                                    \
+	long fsize = ftell(fp);                                                                    \
+	fseek(fp, 0, SEEK_SET);                                                                    \
+	char *data = malloc(fsize + 1);                                                            \
+	fread(data, 1, fsize, fp);                                                                 \
+	data[fsize] = 0;
+/* data[fsize--] = 0 */
+
+static int part_one(FILE *fp)
+{
+	int res = 0;
+
+	return res;
+}
+
+static int part_two(FILE *fp)
+{
+	int res = 0;
+
+	return res;
+}
+
+int main(int argc, char *argv[])
+{
+	(void)argc;
+	(void)argv;
+
+	FILE *fp = fopen("input", "r");
+	if (!fp)
+		exit(EXIT_FAILURE);
+
+	clock_t tic = clock();
+	printf("%d\n", part_one(fp));
+	rewind(fp);
+	printf("%d\n", part_two(fp));
+	clock_t toc = clock();
+	printf("TIME: %f seconds\n", (double)(toc - tic) / CLOCKS_PER_SEC);
+
+	fclose(fp);
+	return 0;
+}