Submission #2761755

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;

int main(){
  int a,b,c,d,array[105],i;
  cin>>a>>b>>c>>d;
  array[0]=b;
  array[d+1]=c;
  for(i=1;i<d+1;i++){
    cin>>array[i];
  }
  sort(array,array+d+2);
  for(i=0;i<d+2;i++){
    if(array[i]==array[i+1]){
      cout<<"NO"<<endl;
      return 0;
    }
  }
    cout<<"YES"<<endl;
}

Submission Info

Judge Result