38 lines
984 B
Zig
38 lines
984 B
Zig
const std = @import("std");
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const mem = std.mem;
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const fmt = std.fmt;
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const print = std.debug.print;
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const input = @embedFile("input");
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pub fn main() !void {
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var total_points: u32 = 0;
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// Split the input
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var input_iter = mem.split(u8, input, "\n");
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while (input_iter.next()) |line| {
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// Input ends with an empty line
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if (line.len == 0) continue;
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// Converting character code to points
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const op: i4 = @intCast(i4, line[0] -| 64);
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const me: i4 = @intCast(i4, line[2] -| 87);
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//rock - paper = -1 WIN
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//rock - scissors = -2 LOSE
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//paper - rock = 1 LOSE
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//paper - scissors = -1 WIN
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//scissors - rock = 2 WIN
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//scissors - paper = 1 LOSE
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switch (op - me) {
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-1, 2 => total_points += 6,
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-2, 1 => total_points += 0,
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else => total_points += 3,
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}
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total_points += @intCast(u4, me);
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}
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print("{}\n", .{total_points});
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}
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