Create 21 May Check if All Bits Set (#1082)

Author: Chayandas07

21 May Check if All Bits Set

@@ -0,0 +1,9 @@
+class Solution {
+  public:
+    bool isBitSet(int n) {
+        // code here
+        int x=__builtin_popcount(n); //setbit
+        int y=log2(n)+1; //size
+        return x==y;
+    }
+};