2022-06 in zig

This commit is contained in:
Julien Dessaux 2022-12-06 11:56:29 +01:00
parent f93b2ed7a9
commit 68f3c84d68
Signed by: adyxax
GPG key ID: F92E51B86E07177E
8 changed files with 71 additions and 0 deletions

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const std = @import("std");
const example = @embedFile("example");
const example2 = @embedFile("example2");
const example3 = @embedFile("example3");
const example4 = @embedFile("example4");
const example5 = @embedFile("example5");
const input = @embedFile("input");
pub fn main() anyerror!void {
try std.testing.expectEqual(solve(example), 7);
try std.testing.expectEqual(solve(example2), 5);
try std.testing.expectEqual(solve(example3), 6);
try std.testing.expectEqual(solve(example4), 10);
try std.testing.expectEqual(solve(example5), 11);
const result = solve(input);
try std.io.getStdOut().writer().print("{}\n", .{result});
}
fn solve(puzzle: []const u8) u64 {
var i: u64 = 3;
while (true) : (i += 1) {
if (puzzle[i] == puzzle[i - 1] or puzzle[i] == puzzle[i - 2] or puzzle[i] == puzzle[i - 3] or puzzle[i - 1] == puzzle[i - 2] or puzzle[i - 1] == puzzle[i - 3] or puzzle[i - 2] == puzzle[i - 3]) {
continue;
}
return i + 1;
}
}

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const std = @import("std");
const example = @embedFile("example");
const example2 = @embedFile("example2");
const example3 = @embedFile("example3");
const example4 = @embedFile("example4");
const example5 = @embedFile("example5");
const input = @embedFile("input");
pub fn main() anyerror!void {
try std.testing.expectEqual(solve(example), 19);
try std.testing.expectEqual(solve(example2), 23);
try std.testing.expectEqual(solve(example3), 23);
try std.testing.expectEqual(solve(example4), 29);
try std.testing.expectEqual(solve(example5), 26);
const result = solve(input);
try std.io.getStdOut().writer().print("{}\n", .{result});
}
fn solve(puzzle: []const u8) u64 {
var n: u64 = 13;
outer: while (true) : (n += 1) {
var i: u64 = n;
while (i >= n - 13) : (i -= 1) {
var j: u64 = i - 1;
while (j >= n - 13) : (j -= 1) {
if (puzzle[i] == puzzle[j]) {
continue :outer;
}
if (j == 0) {
break;
}
}
}
return n + 1;
}
}