45 lines
1.1 KiB
Zig
45 lines
1.1 KiB
Zig
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const std = @import("std");
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const MAGIC_NUMBER = 100;
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pub fn main() !void {
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var stdin_buffer: [1024]u8 = undefined;
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var stdin_reader = std.fs.File.stdin().reader(&stdin_buffer);
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const stdin = &stdin_reader.interface;
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var current: i32 = 50;
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var task1: u32 = 0;
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var task2: u32 = 0;
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while (try stdin.takeDelimiter('\n')) |line| {
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var num = try std.fmt.parseInt(i32, line[1..], 10);
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switch (line[0]) {
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'L' => {
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while (num > 0) : (num -= 1) {
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current = @mod(current - 1, MAGIC_NUMBER);
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if (current == 0) {
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task2 += 1;
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}
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}
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},
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'R' => {
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while (num > 0) : (num -= 1) {
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current = @mod(current + 1, MAGIC_NUMBER);
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if (current == 0) {
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task2 += 1;
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}
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}
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},
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else => unreachable,
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}
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if (current == 0) {
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task1 += 1;
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}
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}
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std.debug.print("{d}\n", .{task1});
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std.debug.print("{d}\n", .{task2});
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}
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