diff options
| -rw-r--r-- | works/solutions/cpp/231.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/works/solutions/cpp/231.cpp b/works/solutions/cpp/231.cpp new file mode 100644 index 0000000..8861e09 --- /dev/null +++ b/works/solutions/cpp/231.cpp @@ -0,0 +1,10 @@ +#include <bitset>
+
+class Solution {
+public:
+ bool isPowerOfTwo(int n) {
+ if (n <= 0) return false;
+ std::bitset<sizeof(n) * 8> bits(n);
+ return bits.count() == 1;
+ }
+};
|