diff --git a/476. Number Complement b/476. Number Complement
new file mode 100644
index 0000000..457e857
--- /dev/null
+++ b/476. Number Complement	
@@ -0,0 +1,9 @@
+class Solution {
+public:
+    int findComplement(int num) {
+        int shift = (log10(num) / log10(2)) + 1;
+        int mask = -1 << shift;
+        mask ^= -1;
+        return mask ^ num;
+    }
+};