Загрузка данных


#include <iostream>
#include <fstream>
using namespace std;
int digitSum(int n, int founded){
  int sum_dig = 0;
  int found_true = 0;
  while(n != 0){
    int d = n%10;
    if (d == founded){
      found_true = 1;
    }
    n = n/10;
  }
  if ((n == 0) && (founded == 0)){
    found_true = 1;
  }
  return found_true;
}
int main(){
  ifstream fin("in.txt");
  ofstream fout("out.txt");
  int a, b;
  fin >> a >> b;
  
  if ((digitSum(a, b)) == 0){
    fout << "NO";
  }else{
    fout << "YES";
  }
  fin.close();
  fout.close();
}