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?tpId=383&tqId=11211118&sourceUrl=
#include <bits/stdc++.h>
using namespace std;
int main() {
int n;
cin>>n;
int sum=0;
while (n > 0) {
sum += n % 10;
n /= 10;
}
cout << sum;
}
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