LiteCode
Problems
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Problem set
A steady set of interview problems.
Browse by title, pick a problem, and get straight into practice.
Minimum Replacements to Make Array Alternating
Array, Greedy, Hash Map, Counting
Medium
Merge k Sorted Lists
Linked List, Divide and Conquer, Heap (Priority Queue)
Hard
Two Sum
Math, Basic
Easy
Longest Substring Without Repeating Characters
String
Medium
Reverse Nodes in k-Group
Linked List, Recursion
Hard
Median of Two Sorted Arrays
Array, Binary Search, Divide and Conquer
Hard