aoc2024: make build tool download input & add shared main function

1 files changed, 0 insertions, 51 deletions

diff --git a/aoc24/src/day1p2.zig b/aoc24/src/day1p2.zig
deleted file mode 100644
index 91b99fa..0000000
--- a/aoc24/src/day1p2.zig
+++ /dev/null
@@ -1,51 +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
-    ) == 31);
-}
-
-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.AutoHashMap(u32, u16).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);
-        const entry = try rights.getOrPut(right);
-        if (entry.found_existing)
-            entry.value_ptr.* += 1
-        else
-            entry.value_ptr.* = 1;
-    }
-
-    var sum: u32 = 0;
-    for (lefts.items) |x| {
-        const count: u32 = @intCast(rights.get(x) orelse 0);
-        sum += x * count;
-    }
-
-    return sum;
-}