Counting Bits solution

Author: PDKhan

counting-bits/PDKhan.cpp

@@ -0,0 +1,12 @@
+class Solution {
+public:
+    vector<int> countBits(int n) {
+        vector<int> result(n + 1, 0);
+
+        for(int i = 0; i <= n; i++){
+            result[i] = result[i >> 1] + (i & 1);
+        }
+
+        return result;
+    }
+};