Grokking+the+coding+interview+github+pdf+full ((hot)) →
Handling combinations and permutations using Breadth-First Search.
Once you learn a pattern, go to LeetCode, filter by that topic (e.g., "Two Pointers"), and try to solve 3 to 5 medium-difficulty problems applying that specific technique. grokking+the+coding+interview+github+pdf+full
: Using heaps to find the most frequent or largest items in a set. go to LeetCode