day 7 woo

src/day07/README.md

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+# 🎄 Advent of Code 2024 - day 7 🎄
+
+## Info
+
+Task description: [link](https://adventofcode.com/2024/day/7)
+
+## Notes
+
+...

src/day07/index.ts

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+import run from "aocrunner"
+
+const parseInput = (rawInput: string) =>
+  rawInput.split("\n").map((line) => line.split(/[: ]+/).map(Number))
+
+const part1 = (rawInput: string) => {
+  const input = parseInput(rawInput)
+
+  return input.reduce((total, [target, ...values]) => {
+    const operators = [(a,b) => a * b, (a,b) => a + b]
+    const evaluate = (numbers: number[]) => {
+      if (numbers[0] > target) {
+        return false
+      }
+      if (numbers.length === 1) {
+        return numbers[0] === target
+      }
+      for (const op of operators) {
+        if (evaluate([op(numbers[0], numbers[1]), ...numbers.slice(2)])) { return true }
+      }
+    }
+    return total + (evaluate(values) ? target : 0)
+  }, 0)
+}
+
+const part2 = (rawInput: string) => {
+  const input = parseInput(rawInput)
+
+  return input.reduce((total, [target, ...values]) => {
+    const operators = [(a,b) => a * b, (a,b) => a + b, (a,b) => Number(`${a}${b}`)]
+    const evaluate = (numbers: number[]) => {
+      if (numbers[0] > target) {
+        return false
+      }
+      if (numbers.length === 1) {
+        return numbers[0] === target
+      }
+      for (const op of operators) {
+        if (evaluate([op(numbers[0], numbers[1]), ...numbers.slice(2)])) { return true }
+      }
+    }
+    return total + (evaluate(values) ? target : 0)
+  }, 0)
+}
+
+run({
+  part1: {
+    tests: [
+      {
+        input: `190: 10 19
+3267: 81 40 27
+83: 17 5
+156: 15 6
+7290: 6 8 6 15
+161011: 16 10 13
+192: 17 8 14
+21037: 9 7 18 13
+292: 11 6 16 20`,
+        expected: 3749,
+      },
+    ],
+    solution: part1,
+  },
+  part2: {
+    tests: [
+      // {
+      //   input: ``,
+      //   expected: "",
+      // },
+    ],
+    solution: part2,
+  },
+  trimTestInputs: true,
+  onlyTests: false,
+})