题解 | #在字符串中找出连续最长的数字串#

#include<iostream>
using namespace std;


int main()
{
    string s;
    
    while(cin>>s){
        int len=s.length();
        string res="";
        string t="";
        int i=0;
        int cnt=0;
        int ans=0;
        while(i<len){
            cnt=0;
            if(!isdigit(s[i])){
                i++;
                t="";
            }else{
                while(isdigit(s[i])&&i<len){
                    t+=s[i++];
                    cnt++;
                }
                if(cnt>ans){
                    res=t;
                    ans=cnt;
                    cnt=0;
                    t="";
                }else if(cnt==ans){
                    res+=t;
                    t="";
                }
            } 
        }
        cout<<res<<","<<ans<<endl;
    }

    return 0;
}