blob: b1b85590a628f9d84382d15338109f657ca3611a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
const std = @import("std");
const example = @embedFile("example");
const input = @embedFile("input");
pub fn main() anyerror!void {
try std.testing.expectEqual(solve(example), 15);
const result = try solve(input);
try std.io.getStdOut().writer().print("{}\n", .{result});
}
const scores = [3][3]u8{ // X Y Z
[3]u8{ 4, 8, 3 }, // A 4 8 3
[3]u8{ 1, 5, 9 }, // B 1 5 9
[3]u8{ 7, 2, 6 }, // C 7 2 6
};
fn solve(puzzle: []const u8) !u64 {
var it = std.mem.tokenize(u8, puzzle, "\n");
var tot: u64 = 0;
while (it.next()) |line| {
tot += scores[line[0] - 'A'][line[2] - 'X'];
}
return tot;
}
|
