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21 Days DSA Challenge to solve top tech companies interview problems, video solutions available on my YouTube Channel - https://yt.openinapp.co/shumbul

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21-Days-DSA-Challenge

For video solution and more, bookmark my website - https://www.shumbularifa.com/

Contributing guidelines - Contributing.md

21 Days DSA Challenge - Problems Table

Day Problem Name Solution Video Problem Link
Day 1 Count pairs with given sum Solution Video 1 Problem Link 1
Day 2 Remove character Solution Video 2 Problem Link 2
Day 3 Buy Stock 2 Solution Video 3 Problem Link 3
Day 4 Mirror Tree Solution Video 4 Problem Link 4
Day 5 Lowest Common Ancestor in a Binary Tree Solution Video 5 Problem Link 5
Day 6 Search in a matrix Solution Video 6 Problem Link 6
Day 7 K largest elements Solution Video 7 Problem Link 7
Day 8 Right View of Binary Tree Solution Video 8 Problem Link 8
Day 9 Triangle path sum Solution Video 9 Problem Link 9
Day 10 Nth Fibonacci number Solution Video 10 Problem Link 10
Day 11 Find the number of islands Solution Video 11 Problem Link 11
Day 12 Word Ladder 1 Solution Video 12 Problem Link 12
Day 13 Overlapping Intervals Solution Video 13 Problem Link 13
Day 14 Reverse a linked list Solution Video 14 Problem Link 14
Day 15 Merge Sort for Linked List Solution Video 15 Problem Link 15
Day 16 Spirally traversing a matrix Solution Video 16 Problem Link 16
Day 17 Container With Most Water Solution Video 17 Problem Link 17
Day 18 Parenthesis Checker Solution Video 18 Problem Link 18
Day 19 Longest consecutive subsequence Solution Video 19 Problem Link 19
Day 20 Generate Parentheses Solution Video 20 Problem Link 20
Day 21 Phone directory Solution Video 21 Problem Link 21

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21 Days DSA Challenge to solve top tech companies interview problems, video solutions available on my YouTube Channel - https://yt.openinapp.co/shumbul

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