Finally (I used JS now..)

6 files changed, 77 insertions, 645 deletions

diff --git a/2020/19/Makefile b/2020/19/Makefile
index fc2ff1a..c88f7f9 100644
--- a/2020/19/Makefile
+++ b/2020/19/Makefile
@@ -6,5 +6,8 @@ solve.o: solve.c
 clean:
 	@rm -f *.o
 
-run: solve.o
+run:
+	@node solve.js
+
+c: solve.o
 	@./solve.o
diff --git a/2020/19/input1 b/2020/19/input
index e472e6c..e472e6c 100644
--- a/2020/19/input1
+++ b/2020/19/input
diff --git a/2020/19/input2 b/2020/19/input2
deleted file mode 100644
index c9757e5..0000000
--- a/2020/19/input2
+++ /dev/null
@@ -1,617 +0,0 @@
-101: 118 64
-83: 132 118 | 108 2
-61: 19 2
-33: 126 2 | 68 118
-80: 2 48 | 118 91
-47: 38 2 | 64 118
-40: 25 2 | 93 118
-18: 38 2 | 108 118
-2: "a"
-74: 118 108 | 2 12
-41: 118 17 | 2 58
-56: 125 2 | 132 118
-66: 12 2 | 27 118
-62: 118 52 | 2 125
-58: 2 128 | 118 99
-89: 110 2 | 3 118
-30: 118 85 | 2 21
-20: 2 70 | 118 111
-85: 118 115 | 2 52
-98: 118 46 | 2 10
-12: 118 2 | 43 118
-99: 102 118 | 56 2
-127: 2 119 | 118 100
-53: 125 2 | 108 118
-15: 2 27 | 118 108
-22: 95 2 | 61 118
-109: 115 2 | 46 118
-90: 76 2 | 121 118
-37: 15 118 | 23 2
-27: 118 2 | 118 118
-104: 2 46 | 118 12
-32: 64 2
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-123: 131 2 | 89 118
-21: 118 132 | 2 115
-95: 112 118 | 125 2
-79: 88 2 | 60 118
-34: 107 2 | 133 118
-6: 2 101 | 118 110
-55: 118 112 | 2 64
-10: 2 118
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-42: 92 118 | 124 2
-105: 38 2 | 10 118
-7: 10 2 | 27 118
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-5: 39 118 | 51 2
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-8: 42 | 42 8
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-3: 19 118 | 52 2
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-11: 42 31 | 42 11 31
-38: 43 43
-44: 118 123 | 2 114
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-121: 2 10 | 118 19
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-13: 19 118 | 46 2
-107: 118 132 | 2 10
-54: 118 27 | 2 12
-63: 2 105 | 118 82
-84: 2 37 | 118 73
-52: 118 2 | 2 118
-50: 118 111 | 2 9
-111: 118 112 | 2 27
-82: 118 46 | 2 108
-118: "b"
-133: 115 2
-103: 34 2 | 22 118
-36: 66 2 | 65 118
-31: 33 118 | 79 2
-69: 12 2 | 115 118
-122: 54 118 | 66 2
-114: 6 118 | 80 2
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-0: 8 11
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-76: 64 2 | 27 118
-126: 2 28 | 118 127
-113: 125 2 | 19 118
-43: 118 | 2
-46: 118 118 | 2 118
-132: 118 118 | 2 2
-49: 118 130 | 2 50
-129: 19 118 | 27 2
-24: 2 27 | 118 52
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-91: 19 118 | 10 2
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-57: 2 63 | 118 90
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-108: 118 118
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-94: 112 2 | 115 118
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-9: 38 118 | 112 2
-71: 2 18 | 118 53
-60: 103 2 | 86 118
-51: 116 2 | 24 118
-128: 24 118 | 117 2
-45: 118 2
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-70: 118 115 | 2 45
-77: 118 13 | 2 94
-131: 61 2 | 107 118
-68: 2 49 | 118 84
-86: 118 97 | 2 30
-78: 118 38 | 2 12
-88: 5 2 | 106 118
-81: 2 45 | 118 52
-64: 2 2
-19: 2 43 | 118 2
-110: 132 2 | 64 118
-96: 2 77 | 118 20
-67: 104 118 | 4 2
-65: 115 118 | 38 2
-73: 118 110 | 2 120
-72: 64 2 | 115 118
-48: 2 46 | 118 10
-97: 7 118 | 133 2
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diff --git a/2020/19/solve.c b/2020/19/solve.c
index 7a8bfa6..ab42036 100644
--- a/2020/19/solve.c
+++ b/2020/19/solve.c
@@ -110,7 +110,12 @@ long part_two(FILE *fp)
 			char rule[64] = { 0 };
 			int ind = 0;
 			sscanf(line, "%d: %64[0-9a-z \"|]", &ind, rule);
-			strcpy(rules[ind], rule);
+			if (ind == 8)
+				strcpy(rules[8], "42 | 42 8");
+			else if (ind == 11)
+				strcpy(rules[11], "42 31 | 42 11 31");
+			else
+				strcpy(rules[ind], rule);
 		} else if (paragraph == 1) {
 			ind = 0;
 			if (verify(line, rules[0]) == strlen(line) - 1)
@@ -123,20 +128,17 @@ long part_two(FILE *fp)
 
 int main(int argc, char *argv[])
 {
-	FILE *fp1 = fopen("input1", "r");
-	if (!fp1)
-		exit(EXIT_FAILURE);
-	FILE *fp2 = fopen("input2", "r");
-	if (!fp2)
+	FILE *fp = fopen("input", "r");
+	if (!fp)
 		exit(EXIT_FAILURE);
 
 	clock_t tic = clock();
-	printf("%lu\n", part_one(fp1));
-	printf("%lu\n", part_two(fp2));
+	printf("%lu\n", part_one(fp));
+	rewind(fp);
+	printf("%lu\n", part_two(fp));
 	clock_t toc = clock();
 	printf("TIME: %f seconds\n", (double)(toc - tic) / CLOCKS_PER_SEC);
 
-	fclose(fp1);
-	fclose(fp2);
+	fclose(fp);
 	return 0;
 }
diff --git a/2020/19/solve.js b/2020/19/solve.js
new file mode 100644
index 0000000..3ed997e
--- /dev/null
+++ b/2020/19/solve.js
@@ -0,0 +1,42 @@
+const { _, performance } = require("perf_hooks");
+const fs = require("fs");
+const data = fs.readFileSync("input", "utf8").split("\n\n");
+const rules = data[0].split("\n");
+const input = data[1].split("\n");
+
+function solve() {
+  const r = [];
+
+  rules.map((rule) => {
+    const tmp = {};
+    const arr = rule.split(": ");
+    tmp.orig = arr[1];
+    if (arr[1].indexOf('"') > -1) tmp.orig = arr[1][1];
+    r[arr[0]] = tmp;
+  });
+
+  let s = r[0].orig;
+  let match = s.match(/\d+/g);
+  while (match && match.length > 0) {
+    s = s.replace(match[0], "(" + r[match[0]].orig + ")");
+    match = s.match(/\d+/g);
+  }
+
+  const regexpStr = "^" + s.split(" ").join("") + "$";
+  let cnt = 0;
+  input.map((word) => {
+    if (word.match(regexpStr)) cnt++;
+  });
+
+  return cnt;
+}
+
+const tic = performance.now();
+console.log(solve());
+// Sorry for hardcoding :P
+rules[54] = "8: 42+";
+rules[64] =
+  "11: 42 31 | 42 (42 31 | 42 (42 31 | 42 (42 31 | 42 (42 31) 31) 31) 31) 31";
+console.log(solve());
+const toc = performance.now();
+console.log("TIME: " + ((toc - tic) / 1000).toFixed(6) + " seconds");
diff --git a/2020/README b/2020/README
index 78e5f27..d0aaae9 100644
--- a/2020/README
+++ b/2020/README
@@ -1,17 +1,19 @@
-Day 01: TIME: 0.007000 seconds
-Day 02: TIME: 0.000952 seconds
-Day 03: TIME: 0.000139 seconds
-Day 04: TIME: 0.003131 seconds
-Day 05: TIME: 0.000278 seconds
-Day 06: TIME: 0.023373 seconds
-Day 07: TIME: 0.068257 seconds
-Day 08: TIME: 0.026559 seconds
-Day 09: TIME: 0.019918 seconds
-Day 10: TIME: 0.000017 seconds
-Day 11: TIME: 0.046929 seconds
-Day 12: TIME: 0.000704 seconds
-Day 13: TIME: 0.000028 seconds
-Day 14: TIME: 0.040175 seconds
-Day 15: TIME: 7.057633 seconds
-Day 16: TIME: 0.000828 seconds
-Day 17: TIME: 0.224944 seconds
+Day 01: TIME: 0.006000 seconds
+Day 02: TIME: 0.000710 seconds
+Day 03: TIME: 0.000174 seconds
+Day 04: TIME: 0.001569 seconds
+Day 05: TIME: 0.000492 seconds
+Day 06: TIME: 0.021799 seconds
+Day 07: TIME: 0.056844 seconds
+Day 08: TIME: 0.021424 seconds
+Day 09: TIME: 0.012570 seconds
+Day 10: TIME: 0.000013 seconds
+Day 11: TIME: 0.036652 seconds
+Day 12: TIME: 0.000616 seconds
+Day 13: TIME: 0.000052 seconds
+Day 14: TIME: 0.023437 seconds
+Day 15: TIME: 4.195079 seconds
+Day 16: TIME: 0.000809 seconds
+Day 17: TIME: 0.196286 seconds
+Day 18: TIME: 0.000249 seconds
+Day 19: TIME: 0.924737 seconds