The “Search in Rotated Sorted Array II” problem is a classic coding interview question that tests your understanding of binary…
Browsing: Intermediate
There is an integer array nums sorted in ascending order (with distinct values). Prior to being passed to your function, nums is possibly rotated at an unknown pivot…
Given an array arr[] of size n, an element is called an Array Leaders if it is greater than or…
The “Majority Element” problem (LeetCode #169) asks you to find the value that appears strictly more than ⌊ n /…
LeetCode “Sort Colors” (#75) asks you to sort an array that contains only three distinct values—0, 1, and 2—so that…
LeetCode “Rotate Image” (#48) asks you to rotate an n × n square matrix 90° clockwise in-place (i.e., without returning…
Struggling with the “Longest Consecutive Sequence” problem on LeetCode? This blog will help you understand the problem, walk you through…
Are you struggling with the “Rearrange Array Elements by Sign” problem on LeetCode? Don’t worry! In this blog, we’ll break…
Find the shortest clear path from the top-left to bottom-right of a 0-1 grid. We explain the intuition, walk through…
See how to run Dijkstra with a set instead of a heap. We break down the idea, walk through clear…