diff options
Diffstat (limited to 'happy_number.cpp')
-rw-r--r-- | happy_number.cpp | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/happy_number.cpp b/happy_number.cpp deleted file mode 100644 index e946b96..0000000 --- a/happy_number.cpp +++ /dev/null @@ -1,37 +0,0 @@ -#include "leetcode.h" - -class Solution { -public: - bool isHappy(int n) { - int slow, fast; - slow = fast = n; - do { - slow = square(slow); - for (int i = 0; i < 2; i++) - fast = square(fast); - } while (slow != fast); - if (slow == 1) - return 1; - else - return 0; - } - -private: - int square(int n) { - int num = 0, tmp; - while (n) { - tmp = n % 10; - num += tmp * tmp; - n /= 10; - } - return num; - } -}; - -int main() { - Solution obj; - if (obj.isHappy(19)) - cout << "true"; - else - cout << "false"; -} |