题解 | 求四位数各个数位之和
求四位数各个数位之和
https://www.nowcoder.com/practice/91fd90931d2847b5855075c11cf90d08
#include <iostream>
#include <cmath>
using namespace std;
int main(){
int n;
cin>>n;
int sum = 0;
while(n){
sum += (n % 10);
n = n/10;
}
cout<<sum;
return 0;
}
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