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202. Happy Number

J简文 2022-07-12 阅读 74
编程语言

problem

​​202. Happy Number​​

 code

class Solution {
public:
bool isHappy(int n) {
while(n!=1 && n!=4)
{
int sum = 0;
int tmp = n;
while(tmp)
{
sum += pow(tmp%10, 2);//
tmp = tmp / 10;//
}
n = sum;
}
return 1==n;

}
};

 

 

 

 

1. ​​Leetcode_Happy Number​​;

2. ​​GrandYang_cnblogs​​;

 

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