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-rw-r--r--other/power_3.cpp19
1 files changed, 19 insertions, 0 deletions
diff --git a/other/power_3.cpp b/other/power_3.cpp
new file mode 100644
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--- /dev/null
+++ b/other/power_3.cpp
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+#include "leetcode.h"
+
+class Solution {
+public:
+ bool isPowerOfThree(int n) {
+ if (n > 1)
+ while (n % 3 == 0)
+ n /= 3;
+ return n == 1;
+ }
+};
+
+int main() {
+ Solution obj;
+ if (obj.isPowerOfThree(27))
+ cout << "true";
+ else
+ cout << "false";
+}