Hype for tomorrow

3 files changed, 1124 insertions, 0 deletions

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 @@
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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;
+}