1001 A+B Format 较简单

代码

#include <iostream>
#include <cstdio>
#include <string>
using namespace std;

int main()
{
	int a,b;
	int c;
	string s;
	int f=0;
	cin>>a>>b;
	c=a+b;
	s=to_string(c);
	for(int i=0;i<s.size();i++){
		if((s.size()-i)%3==0&&(f==1)){
			cout<<',';
		} 
		if(s[i]>='0'&&s[i]<='9'){
			f=1;
		}
		cout<<s[i];
	}
	return 0;
}

标签：std,main,string,Format,int,简单,include,1001
来源： https://www.cnblogs.com/wodeblog1982/p/16487522.html