Cod sursa(job #2286122)

Utilizator Mada2003Madalina Scarlat Mada2003 Data 19 noiembrie 2018 20:40:12
Problema Floyd-Warshall/Roy-Floyd Scor 0
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.33 kb
Raporteaza aceasta sursa 
#include <iostream>
using namespace std;
int n;
char s,s1;
int main()
{
    int a=0;
    cin>>n;
    cin>>s;
    s1=s;
    for(int i=1; i<n;i++){
        cin>>s;
        if(s1!=s){
            cout<<"YES"<<'\n';
            cout<<s1<<s;
            return 0;
        }
        s1=s;
    }
    cout<<"NO";
    return 0;
}