title: Find Last Digit Factorial Divides Factorial B
signature: function findLastDigitFactorialDividesFactorialB($a, $b) {
test_code: <?php
  
  
  // SOLUTION CODE 
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE 
  // ============================================
  function validateSolution($actual, $expected){
      return serialize($actual) == serialize($expected);
  }
  
  function driver($a, $b, $expected){
      try{
        if (validateSolution(PLACEHOLDER_FN_NAME($a, $b), $expected)){
          return "PASSED";
        }
        return "FAILED";
      }
      catch (Exception $exception_obj) {
        return get_class($exception_obj);
      }
  }
  
  function main(){
      printf("TEST-0...%s\n",driver(
        79, 84, 
        0));
      
      printf("TEST-1...%s\n",driver(
        61, 29, 
        1));
      
      printf("TEST-2...%s\n",driver(
        39, 77, 
        0));
      
      printf("TEST-3...%s\n",driver(
        39, 65, 
        0));
      
      printf("TEST-4...%s\n",driver(
        61, 78, 
        0));
      
      printf("TEST-5...%s\n",driver(
        86, 73, 
        1));
      
      printf("TEST-6...%s\n",driver(
        7, 92, 
        0));
      
      printf("TEST-7...%s\n",driver(
        86, 50, 
        1));
      
      printf("TEST-8...%s\n",driver(
        86, 63, 
        1));
      
      printf("TEST-9...%s\n",driver(
        11, 2, 
        1));
      
  }
  
  main();
  ?>
source_py: def find_last_digit_factorial_divides_factorial_b(A, B):
      variable = 1
      if (A == B):
          return 1
      elif ((B - A) >= 5):
          return 0
      else:
          for i in range((A + 1), (B + 1)):
              variable = ((variable * (i % 10)) % 10)
          return (variable % 10)
source_cpp: int find_last_digit_factorial_divides_factorial_b(long long int A, long long int B) {
    int variable = 1;
    if ( A == B ) return 1;
    else if ( ( B - A ) >= 5 ) return 0;
    else {
      for ( long long int i = A + 1;
      i <= B;
      i ++ ) variable = ( variable * ( i % 10 ) ) % 10;
      return variable % 10;
    }
  }