22 lines
335 B
Plaintext
22 lines
335 B
Plaintext
|
class Solution{
|
||
|
|
public:
|
||
|
|
int isHappy(int N){
|
||
|
|
|
||
|
|
int sum=0,r;
|
||
|
|
while(N!=0)
|
||
|
|
{
|
||
|
|
r=N%10;
|
||
|
|
sum=sum+(r*r);
|
||
|
|
N=N/10;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(sum==1)
|
||
|
|
return 1;
|
||
|
|
else if(sum<10)
|
||
|
|
return 0;
|
||
|
|
else
|
||
|
|
return isHappy(sum);
|
||
|
|
|
||
|
|
}
|
||
|
|
};
|