1719 - 初级第十课——各位数字之和

2147483646

45

C++解答

#include<iostream>
#include<cstdio>
#include<cstring>
#include<string>
#include<algorithm>
#include<cmath>
#include<cstdlib>
#include<iomanip>
using namespace std;
string s;
int ans=0,i;
int main(){
	cin>>s;
	for(i=0;i<s.size();i++) ans+=s[i]-48;
	cout<<ans<<endl;
	return 0;
}