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 <vector>
using namespace std;
int main() {
vector<char> a;
string s;
getline(cin,s);
for(char c : s){
a.push_back(c);
}
int sum = 0;
while(!a.empty()){
sum += a.back()-'0';
a.pop_back();
}
cout<<sum<<endl;
return 0;
}
