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| author | crupest <crupest@outlook.com> | 2020-07-24 16:09:53 +0800 |
|---|---|---|
| committer | crupest <crupest@outlook.com> | 2020-07-24 16:09:53 +0800 |
| commit | 2012f0eb0935be0b98121fccc06c042a4ea3e89c (patch) | |
| tree | 9e21b9dc8b2ac3fb438ae7786a1e65b49177cbd5 | |
| parent | c55099cf5cd565e2e6122dde649890e2ef652856 (diff) | |
| download | crupest-2012f0eb0935be0b98121fccc06c042a4ea3e89c.tar.gz crupest-2012f0eb0935be0b98121fccc06c042a4ea3e89c.tar.bz2 crupest-2012f0eb0935be0b98121fccc06c042a4ea3e89c.zip | |
import(solutions): Add problem 231 .
| -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;
+ }
+};
|