1 files changed, 7 insertions, 0 deletions

diff --git a/2022/04/a.rs b/2022/04/a.rs
new file mode 100644
index 0000000..d69821a
--- /dev/null
+++ b/2022/04/a.rs
@@ -0,0 +1,7 @@
+mod common;
+use common::*;
+
+fn main() {
+    let contained = |a: (i64, i64), b: (i64, i64)| a.0 >= b.0 && a.1 <= b.1;
+    println!("{}", count(|a, b| contained(a, b) || contained(b, a)));
+}