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 <bits/stdc++.h>
using namespace std;
int main() {
string s;
int sum = 0;
cin >> s;
for (int i = 0; i < s.size(); i++) {
sum += s[i] - '0';
}
cout << sum << endl;
return 0;
}
