2022 - Day 6

2022/06/solution.ts

@@ -0,0 +1,50 @@
+const sample1 = "mjqjpqmgbljsphdztnvjfqwrcgsmlb";
+const sample2 = "bvwbjplbgvbhsrlpgdmjqwftvncz";
+const sample3 = "nppdvjthqldpwncqszvftbrmjlhg";
+const sample4 = "nznrnfrfntjfmvfwmzdfjlvtqnbhcprsg";
+const sample5 = "zcfzfwzzqfrljwzlrfnpqdbhtmscgvjw";
+const input = await Deno.readTextFile("input.txt");
+
+const solvePart1 = (data: string): number => {
+  const characters = data.split("");
+  const size = 4;
+  for (let i = 0; i < characters.length; i += 1) {
+    const s = new Set(characters.slice(i, i + size));
+    if (s.size === size) {
+      return s.size + i;
+    }
+  }
+  return -1;
+};
+
+console.log("Sample1:", solvePart1(sample1));
+console.log("Sample2:", solvePart1(sample2));
+console.log("Sample3:", solvePart1(sample3));
+console.log("Sample4:", solvePart1(sample4));
+console.log("Sample5:", solvePart1(sample5));
+console.log("Input", solvePart1(input));
+
+const sample6 = "mjqjpqmgbljsphdztnvjfqwrcgsmlb";
+const sample7 = "bvwbjplbgvbhsrlpgdmjqwftvncz";
+const sample8 = "nppdvjthqldpwncqszvftbrmjlhg";
+const sample9 = "nznrnfrfntjfmvfwmzdfjlvtqnbhcprsg";
+const sample10 = "zcfzfwzzqfrljwzlrfnpqdbhtmscgvjw";
+
+const solvePart2 = (data: string): number => {
+  const characters = data.split("");
+  const size = 14;
+  for (let i = 0; i < characters.length; i += 1) {
+    const s = new Set(characters.slice(i, i + size));
+    if (s.size === size) {
+      return s.size + i;
+    }
+  }
+  return -1;
+};
+
+console.log("Sample6:", solvePart2(sample6));
+console.log("Sample7:", solvePart2(sample7));
+console.log("Sample8:", solvePart2(sample8));
+console.log("Sample9:", solvePart2(sample9));
+console.log("Sample10:", solvePart2(sample10));
+console.log("Input", solvePart2(input));