1 files changed, 26 insertions, 0 deletions
diff --git a/day04.zig b/day04.zig
new file mode 100644
index 0000000..3c621b8
--- /dev/null
+++ b/day04.zig
@@ -0,0 +1,26 @@
+const std = @import("std");
+const data = @embedFile("day04");
+
+pub fn main() !void {
+    var part1: i32 = 0;
+    var part2: i32 = 0;
+
+    var lines = std.mem.split(u8, data, "\n");
+
+    while (lines.next()) |line| {
+        if (line.len == 0)
+            break;
+
+        var parts = std.mem.tokenize(u8, line, ",-");
+
+        var a = try std.fmt.parseInt(i32, parts.next().?, 10);
+        var b = try std.fmt.parseInt(i32, parts.next().?, 10);
+        var c = try std.fmt.parseInt(i32, parts.next().?, 10);
+        var d = try std.fmt.parseInt(i32, parts.next().?, 10);
+
+        if ((c - a) * (d - b) <= 0) part1 += 1;
+        if ((d - a) * (c - b) <= 0) part2 += 1;
+    }
+
+    std.debug.print("{} {}\n", .{ part1, part2 });
+}