Write a C++ program to check two given integers, each in the range 10..99. Return true if a digit appears in both numbers, such as the 3 in 13 and 33

#include <iostream>
using namespace std;

bool test(int x, int y)
        {
           return x / 10 == y / 10 || x / 10 == y % 10 || x % 10 == y / 10 || x % 10 == y % 10;
        }
        
int main() 
 {
  cout << test(11, 21) << endl;  
  cout << test(11, 20) << endl;  
  cout << test(10, 10) << endl;  
  return 0;    
}