Java Solutions to problems on LintCode/LeetCode. Contribute to awangdev/leet-code development by creating an account on GitHub.

My idea here is: When traversing each node, if I can know who its corresponding symmetrical node is by some method, then I can directly compare whether the two are consistent. Therefore, the idea is ...

Design symmetry means that if one method causes an effect, the logically opposite method should cause the opposite effect. In this Java tip, David Petersheim discusses why this can be a subtle ...