Tag: #hiddenfiles

  • LeetCode 652: Find Duplicate Subtrees (Python recursion memorization)

    Python Solution:   Time Complexity: O(n) Space Complexity: O(n)

  • How to access router settings

    Sometimes, we want to change some settings on the router, for example, wifi password which is essential to network security.   There are many vendors of the router, which the management IP various router by router, but there are several common addresses you can try first: http://192.168.0.1 http://192.168.1.1 http://192.168.100.1 http://192.168.20.1 https://192.168.0.1 https://192.168.1.1 https://192.168.100.1 https://192.168.20.1 For…