27 lines
950 B
Zig
27 lines
950 B
Zig
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const std = @import("std");
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const example = @embedFile("example");
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const input = @embedFile("input");
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pub fn main() anyerror!void {
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try std.testing.expectEqual(solve(example), 4);
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const result = try solve(input);
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try std.io.getStdOut().writer().print("{}\n", .{result});
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}
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fn solve(puzzle: []const u8) !u64 {
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var it = std.mem.tokenize(u8, puzzle, "\n");
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var tot: u64 = 0;
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while (it.next()) |line| {
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var it2 = std.mem.tokenize(u8, line, "-,");
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const a = try std.fmt.parseInt(u64, it2.next() orelse unreachable, 10);
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const b = try std.fmt.parseInt(u64, it2.next() orelse unreachable, 10);
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const c = try std.fmt.parseInt(u64, it2.next() orelse unreachable, 10);
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const d = try std.fmt.parseInt(u64, it2.next() orelse unreachable, 10);
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if (a <= c and b >= d or a >= c and b <= d or a <= c and b >= c or a <= d and b >= d) {
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tot += 1;
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}
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}
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return tot;
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}
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