Krotki, day 7 (#62)

Author: Krotki

2024/07/calibration.input

@@ -0,0 +1,9 @@
+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

2024/07/krotki/part1.v

@@ -0,0 +1,33 @@
+module main
+
+import os
+
+fn main() {
+	input := os.get_lines()
+
+	ops := ['+', '*']
+
+	mut sum := u64(0)
+	for line in input {
+		numbers := line.split(' ').map(it.u64())
+		mut acc := [numbers[1]]
+		for n2 in numbers[2..] {
+			mut nacc := []u64{}
+			for n1 in acc {
+				for op in ops {
+					match op {
+						'+' { nacc << n1 + n2 }
+						'*' { nacc << n1 * n2 }
+						else {}
+					}
+				}
+			}
+			acc = nacc.clone()
+		}
+		if acc.contains(numbers[0]) {
+			sum += numbers[0]
+		}
+	}
+
+	println(sum)
+}

2024/07/krotki/part2.v

@@ -0,0 +1,34 @@
+module main
+
+import os
+
+fn main() {
+	input := os.get_lines()
+
+	ops := ['+', '*', '||']
+
+	mut sum := u64(0)
+	for line in input {
+		numbers := line.split(' ').map(it.u64())
+		mut acc := [numbers[1]]
+		for n2 in numbers[2..] {
+			mut nacc := []u64{}
+			for n1 in acc {
+				for op in ops {
+					match op {
+						'+' { nacc << n1 + n2 }
+						'*' { nacc << n1 * n2 }
+						'||' { nacc << '${n1}${n2}'.u64() }
+						else {}
+					}
+				}
+			}
+			acc = nacc.clone()
+		}
+		if acc.contains(numbers[0]) {
+			sum += numbers[0]
+		}
+	}
+
+	println(sum)
+}

known/2024/07/krotki/part1.out

@@ -0,0 +1 @@
+3749

known/2024/07/krotki/part2.out

@@ -0,0 +1 @@
+11387