complete hacky day 6 part 1

day6/day6.odin

@@ -0,0 +1,87 @@
+package day6
+
+import "core:log"
+import math "core:math"
+import "core:strconv"
+import "core:strings"
+import "core:testing"
+
+import "../utils"
+
+sample :: `123 328  51 64
+45 64  387 23
+6 98  215 314
+*   +   *   +  `
+
+Operation :: struct($N: uint) {
+	values:    [N]u64,
+	operation: rune,
+}
+
+evaluate_op :: proc(op: Operation($N)) -> u64 {
+	op := op
+	if op.operation == '+' {
+		return math.sum(op.values[:])
+	} else {
+		return math.prod(op.values[:])
+	}
+}
+
+parse_operations :: proc(s: string, $N: uint) -> [dynamic]Operation(N) {
+	ops: [dynamic]Operation(N)
+	num_elements := 0
+	counter := s
+	for line in strings.split_lines_iterator(&counter) {
+		line := line
+		for x in strings.split_iterator(&line, " ") {
+			(x != "") or_continue
+			num_elements += 1
+		}
+		break
+	}
+
+	resize(&ops, num_elements)
+
+	row := 0
+    buf := s
+	for line in strings.split_lines_iterator(&buf) {
+		(line != "") or_continue
+		line := line
+		col := 0
+		for x in strings.split_iterator(&line, " ") {
+			(x != "") or_continue
+			val, ok := strconv.parse_u64(x)
+			if ok {
+				ops[col].values[row] = val
+			} else {
+				ops[col].operation = rune(x[0])
+			}
+			col += 1
+		}
+		row += 1
+	}
+
+	return ops
+}
+
+solve_first :: proc(s: string, $N: uint) -> u64 {
+	ops := parse_operations(s, N)
+	defer delete(ops)
+	total: u64 = 0
+	for op in ops {
+		total += evaluate_op(op)
+	}
+    return total
+}
+
+@(test)
+solve_first_sample :: proc(t: ^testing.T) {
+    testing.expect_value(t, solve_first(sample, 3), 4277556)
+}
+
+@(test)
+solve_first_puzzle :: proc(t: ^testing.T) {
+    content := utils.read_file("day6/input.txt")
+    defer delete(content)
+    testing.expect_value(t, solve_first(content, 4), 4277556)
+}