title: Check If X Can Give Change To Every Person In The Queue
signature: function check_if_x_can_give_change_to_every_person_in_the_queue(notes, n)
test_code: using Printf
  
  # SOLUTION CODE
  # ============================================
  PLACEHOLDER_CODE_BODY
  
  # TESTING CODE 
  # ============================================
  function validate_solution(actual, expected)
      return actual == expected
  end
  
  function driver(notes, n, expected)
      try
  
          if validate_solution(PLACEHOLDER_FN_NAME(notes, n), expected)
              return "PASSED";
          end
          return "FAILED";
      catch exception_obj
          return string(Base.typename(typeof(exception_obj)).wrapper);
      end
  end
  
  function main()
      
      result = driver([5, 5, 5, 10, 20], 4, 1);
      @printf("TEST-0...%s\n",result);
      
      result = driver([5, 5, 5, 20, 10], 5, 0);
      @printf("TEST-1...%s\n",result);
      
      result = driver([5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10], 27, 1);
      @printf("TEST-2...%s\n",result);
      
      result = driver([10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 18], 12, 0);
      @printf("TEST-3...%s\n",result);
      
      result = driver([5, 5, 20], 2, 1);
      @printf("TEST-4...%s\n",result);
      
      result = driver([10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5], 17, 0);
      @printf("TEST-5...%s\n",result);
      
      result = driver([5, 10, 20, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5], 7, 0);
      @printf("TEST-6...%s\n",result);
      
      result = driver([-82, -10, -78, -84, 68, 62, 10, 20, -86, -98, 92, 70, 40, -12, -20, -36, 8, -70, 6, 8, 44, -24, 8, -18, 76, -54, -14, -94, -68, -62, -24, -36, -74, 92, 92, -80, 48, 56, 94], 31, 0);
      @printf("TEST-7...%s\n",result);
      
      result = driver([10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5], 25, 0);
      @printf("TEST-8...%s\n",result);
      
      result = driver([46, 46, 93, 57, 82, 34, 83, 80, 77, 36, 80, 85, 69, 28, 9, 56, 49, 27, 83, 25, 1, 80, 99, 14, 69, 82, 79, 71, 74, 34], 20, 0);
      @printf("TEST-9...%s\n",result);
      
  end
  
  main()
source_py: def check_if_x_can_give_change_to_every_person_in_the_queue(notes, n):
      fiveCount = 0
      tenCount = 0
      for i in range(n):
          if (notes[i] == 5):
              fiveCount += 1
          elif (notes[i] == 10):
              if (fiveCount > 0):
                  fiveCount -= 1
                  tenCount += 1
              else:
                  return 0
          elif ((fiveCount > 0) and (tenCount > 0)):
              fiveCount -= 1
              tenCount -= 1
          elif (fiveCount >= 3):
              fiveCount -= 3
          else:
              return 0
      return 1
source_cpp: int check_if_x_can_give_change_to_every_person_in_the_queue(vector<int> notes, int n) {
    int fiveCount = 0;
    int tenCount = 0;
    for ( int i = 0;
    i < n;
    i ++ ) {
      if ( notes [ i ] == 5 ) fiveCount ++;
      else if ( notes [ i ] == 10 ) {
        if ( fiveCount > 0 ) {
          fiveCount --;
          tenCount ++;
        }
        else return 0;
      }
      else {
        if ( fiveCount > 0 && tenCount > 0 ) {
          fiveCount --;
          tenCount --;
        }
        else if ( fiveCount >= 3 ) {
          fiveCount -= 3;
        }
        else return 0;
      }
    }
    return 1;
  }