diff --git a/check-if-a-string-contains-all-binary-codes-of-size-k/sol.rs b/check-if-a-string-contains-all-binary-codes-of-size-k/sol.rs
new file mode 100644
index 0000000..59e969c
--- /dev/null
+++ b/check-if-a-string-contains-all-binary-codes-of-size-k/sol.rs
@@ -0,0 +1,10 @@
+use std::collections::HashSet;
+
+impl Solution {
+    pub fn has_all_codes(s: String, k: i32) -> bool {
+        s.into_bytes()
+            .windows(k as usize)
+            .collect::<HashSet<_>>()
+            .len() == 1 << k
+    }
+}
\ No newline at end of file