diff --git a/number-of-1-bits/gmlwls96.kt b/number-of-1-bits/gmlwls96.kt
new file mode 100644
index 000000000..d6ab5fbca
--- /dev/null
+++ b/number-of-1-bits/gmlwls96.kt
@@ -0,0 +1,3 @@
+class Solution {
+    fun hammingWeight(n: Int): Int = n.countOneBits()
+}