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-rw-r--r--aoc24/src/day1p1.zig49
1 files changed, 0 insertions, 49 deletions
diff --git a/aoc24/src/day1p1.zig b/aoc24/src/day1p1.zig
deleted file mode 100644
index fba4b8c..0000000
--- a/aoc24/src/day1p1.zig
+++ /dev/null
@@ -1,49 +0,0 @@
-const std = @import("std");
-
-pub fn main() !void {
- const input = @embedFile("1.txt");
- try std.fmt.format(std.io.getStdOut().writer(), "{}\n", .{try run(input)});
-}
-
-test {
- std.debug.assert(try run(
- \\3 4
- \\4 3
- \\2 5
- \\1 3
- \\3 9
- \\3 3
- ) == 11);
-}
-
-pub fn run(input: []const u8) !u32 {
- var lines = std.mem.split(u8, input, "\n");
-
- var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
- defer arena.deinit();
- const allocator = arena.allocator();
-
- var lefts = std.ArrayList(u32).init(allocator);
- defer lefts.deinit();
- var rights = std.ArrayList(u32).init(allocator);
- defer rights.deinit();
-
- while (lines.next()) |line| {
- if (line.len == 0) continue;
- var words = std.mem.split(u8, line, " ");
- const left = try std.fmt.parseInt(u32, words.next() orelse return error.InvalidInput, 10);
- const right = try std.fmt.parseInt(u32, words.next() orelse return error.InvalidInput, 10);
- try lefts.append(left);
- try rights.append(right);
- }
-
- std.mem.sort(u32, lefts.items, {}, std.sort.asc(u32));
- std.mem.sort(u32, rights.items, {}, std.sort.asc(u32));
-
- var sum: u32 = 0;
- for (lefts.items, rights.items) |l, r| {
- sum += @max(l, r) - @min(l, r);
- }
-
- return sum;
-}