Java Programming – Design a data structure that supports insert, delete, search and getRandom in constant time
The idea is to use a resizable array (ArrayList in Java, vector in C) together with hashing. Resizable arrays support insert...
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C++ Programming – Count distinct elements in every window of size k
An Efficient Solution is to use the count of previous window, while sliding the window. The idea is to create a hash map...
How to Create Custom Keyboard Shortcuts on Mac
How to Create Custom Keyboard Shortcuts on Mac - PC -Macs come with some truly incredible trackpad motions, and a lot of...
