Rotting oranges
Given a gif, each cell can have one of the three values. 0 for empty, 1 for fresh Orange and 2 for rotten. Return minimum number of minutes that must elapse until...
Leetcode: Solving Leetcode Problems in Hindi
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Latest available episode Rotting oranges
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15 Episodes
Number of islands
Given a grid, find number of islands. We use depth first search.
Breadth first search and depth first search
Traverse a tree or a graph using DFS and BFS
Merge K Sorted Lists
Given a an array of Sorted K linked lists, merge all K lists in one Sorted linked-list and return it.
Two sum, Two Sum - II, Three sum
Find two numbers that add up to a Target. Find two numbers in a sorted array that add up to a number. Find three numbers in an array that add up to...
Simplify Path
Given a Unix style absolute path, simplify it and return the shortest canonical path
Design In-Memory file system
Design In-Memory file system to simulate following functions. LS, mkdir, addcontentstofile, rewdcontentsfromfile
Minimum window Substring AND longest Substring with at most K distinct characters
Give a string S and a String T, find the minimum window in S which will contain all characters in T.
Employee Free Time or Free intervals.
Given a list of scheduled for employees in a company, return free time where no employee is working.
Find the celebrity
Find a celebrity in a room where everyone knows the celebrity and celebrity doesn’t know anyone.
