leapyear.java

class Leap { // Do not erase this line

// Write the check_leap function below this line
  public static int check_leap(int y) {
    if(y % 4 == 0) {
      if(y % 100 == 0) {
        if(y % 400 == 0) { 
          return 1;
        } else {
          return 0;
        }
      }
      return 1;  
    } else {
      return 0;
    }
  }