LeetCode Helpers

A library to help one crack leetcode problems in Java.

Usage

Extend SolutionRunner, write your solution, and test your code.

import cn.adalab.leetcode.helpers.ds.ListNode;

public class P21 extends SolutionRunner {

   public ListNode mergeTwoLists(ListNode l1, ListNode l2) {
      // your solution code
   }

   /**
    * If needed, test your code with inherited methods like {@code assertSameList} and {@code toListNode}.
    */
   @Override
   public void run() {
      ListNode head1 = toListNode("[1,2,4]");
      ListNode head2 = toListNode("[1,3,4]");
      ListNode merged = mergeTwoLists(head1, head2);
      System.out.println(merged);
      assertSameList(toListNode("[1,1,2,3,4,4]"), merged);
   }

}

Credits

This project is inspired by:

1. leetcode-helper
2. leetcode

TODO

1. Should SolutionRunner expose assertion APIs? Problems like 450 may have more than one correct outputs, so assertion failures does not necessarily mean wrong solution. Assertion APIs could be misused here.