For those people who practice coding on Leetcode, it becomes difficult for debugging code locally with various types of input, such as linked list, binary tree and string arrays.
Programmers will have to assemble the above data structures for debugging or testing. This could be quite time consuming.
To mitigate the problem for myself when I happen to kill time on Leetcode and have difficulty in solving problems with limited test cases from the the website, I developed such a tool for me to locally debug my program.
Please refer API for usage in detail.