题解 | 数位之和
数位之和
https://www.nowcoder.com/practice/5e85cc26475449648e668aa98e92d05b
#include <bits/stdc++.h>
using namespace std;
int main() {
string n;
cin>>n;
int sum=0;
for(char c : n){
if(c=='-') continue;
sum+=(c-'0');
}
cout<<sum;
}
// 64 位输出请用 printf("%lld")
