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));