DSA index

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Arrays

1) Path Folder 73-Set Matrix Zeroes JAVA: ltc Problem Link

1) Path Folder 73-Set Matrix Zeroes CPP: ltc Problem Link

2) Path Folder 118. Pascal's Triangle: ltc Problem Link

2) Path Folder 119. Pascal's Triangle II: ltc Problem Link

3) Path Folder 31. Next Permutation: ltc Problem Link

4) Path Folder 53. Maximum Subarray: ltc Problem Link

5) Path Folder 75. Sort Colors: ltc Problem Link

6) Path Folder 121. Best Time to Buy and Sell Stock: ltc Problem Link

7) Path Folder 48. Rotate Image: ltc Problem Link

8) Path Folder 56. Merge Intervals: ltc Problem Link

9) Path Folder 88. Merge Sorted Array: ltc Problem Link

10) Path Folder 287. Find the Duplicate Number: ltc Problem Link

11) Path Folder 1296. Divide Array in Sets of K Consecutive Numbers

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String

1) Path Folder 73-Set Matrix Zeroes : ltc Problem Link

2) Path Folder 394. Decode String : ltc Problem Link

3) Path Folder 179. Largest Number

4) Path Folder 2165. Smallest Value of the Rearranged Number

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Recursion

1) Path Folder Recursively remove all adjacent duplicates : gfg Problem Link

2) Path Folder Subset Sum : cdn Problem Link

3) Path Folder Pascle Tringle : cdn Problem Link

4) Path Folder Combination Sum : ltc Problem Link

5) Path Folder Combination Sum 2 : ltc Problem Link

6) Path Folder Palindrom Partitioning : ltc Problem Link

7) Path Folder Permutation Sequence : ltc Problem Link

8) Path Folder Permutation Sequence : ltc Problem Link

9) Path Folder Find the Winner of the Circular Game : ltc Problem Link

10) Path Folder 22. Generate Parentheses: ltc Problem Link

11) Path Folder 45. Jump Game II: ltc Problem Link

12) Path Folder 241. Different Ways to Add Parentheses ltc Problem Link

13) Path Folder 486. Predict the Winner ltc Problem Link

14) Path Folder 64. Minimum Path Sum ltc Problem Link

15) Path Folder 64. Minimum Path Sum ltc Problem Link

16) Path Folder 198. House Robber ltc Problem Link

17) Path Folder 213. House Robber II ltc Problem Link

18) Path Folder 300. Longest Increasing Subsequence ltc Problem Link

19) Path Folder 51. N-Queens: ltc Problem Link

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BTree

1) Path Folder preorder : lc Problem Link

2) Path Folder postorder : lc Problem Link

3) Path Folder level order : lc Problem Link

4) Path Folder inorder : lc Problem Link

5) Path Folder VerticalOrderTraversal : cdn Problem Link

6) Path Folder TreeTraversals(inorder,preorder,postorder) : cdn Problem Link

7) Path Folder TopViewOfBinaryTree : gfg Problem Link|| cdn Problem Link

8) Path Folder PathtoGivenNode : interviewbit Problem Link

9) Path Folder MaximumWidthofBinaryTree : lc Problem Link

10) Path Folder LeftViewOfBinaryTree : gfg Problem Link || cdn Problem Link

11) Path Folder BottomViewOfBinaryTree : cdn Problem Link || gfg Problem Link

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Greedy

1) Path Folder N Meetings In A Room : cdn Problem Link || gfg

2) Path Folder Minimum Plateform : cdn Problem Link || gfg

3) Path Folder 122. Best Time to Buy and Sell Stock II : Problem Link

4) Path Folder 455. Assign Cookies : Problem Link

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Kadane

1) Path Folder 152. Maximum Product Subarray: lc Problem Link

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DP

1) Path Folder 509. Fibonacci Number: lc Problem Link

2) Path Folder 70. Climbing Stairs: lc Problem Link

3) Path Folder Frog Jump: Problem Link

4) Path Folder Frog Jump K: Problem Link

5) Path Folder Maximum sum of non-adjacent elements: Problem Link

6) Path Folder 62. Unique Paths: Problem Link

7) Path Folder 931. Minimum Falling Path Sum: Problem Link

8) Path Folder 1463. Cherry Pickup II: Problem Link

9) Path Folder Subset Sum Equal To K: Problem Link

10) Path Folder 416. Partition Equal Subset Sum: Problem Link

11) Path Folder Partition a set into two subsets such that the difference of subset sums is minimum.: Problem Link

12) Path Folder Number Of Subsets: Problem Link

13) Path Folder Partitions With Given Difference: Problem Link

14) Path Folder 0 1 Knapsack : Problem Link

15) Path Folder 322. Coin Change : Problem Link

16) Path Folder 494. Target Sum : Problem Link

17) Path Folder 518. Coin Change II : Problem Link

18) Path Folder Unbounded Knapsack : Problem Link

19) Path Folder Rod cutting problem : Problem Link

Dp On String

20) Path Folder 1143. Longest Common Subsequence : Problem Link

21) Path Folder Print Longest Common Subsequence : Problem Link

22) Path Folder Longest Common Substring : Problem Link

23) Path Folder 516. Longest Palindromic Subsequence : Problem Link

24) Path Folder 1312. Minimum Insertion Steps to Make a String Palindrome : Problem Link

25) Path Folder Minimum Number of Deletions and Insertions : Problem Link

26) Path Folder 1092. Shortest Common Supersequence : Problem Link

27) Path Folder 115. Distinct Subsequences : Problem Link

28) Path Folder 72. Edit Distance : Problem Link

29) Path Folder 44. Wildcard Matching : Problem Link

DP On Stock

6) Path Folder 121. Best Time to Buy and Sell Stock: ltc Problem Link

30) Path Folder 122. Best Time to Buy and Sell Stock II : Problem Link

31) Path Folder 123. Best Time to Buy and Sell Stock III : Problem Link

32) Path Folder 188. Best Time to Buy and Sell Stock IV : Problem Link

33) Path Folder 309. Best Time to Buy and Sell Stock with Cooldown : Problem Link

34) Path Folder 714. Best Time to Buy and Sell Stock with Transaction Fee : Problem Link

DP On LIS

35) Path Folder Longest Increasing Subsequence : Problem Link

36) Path Folder Print Longest Increasing Subsequence : Problem Link

37) Path Folder 368. Largest Divisible Subset : Problem Link

38) Path Folder Longest Bitonic Sequence : Problem Link

39) Path Folder 673. Number of Longest Increasing Subsequence : Problem Link

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DP Practice

40) Path Folder 877. Stone Game : Problem Link

41) Path Folder 1387. Sort Integers by The Power Value : Problem Link

42) Path Folder 2140. Solving Questions With Brainpower : Problem Link

43) Path Folder 396. Rotate Function : Problem Link

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Contest Weekly Contest 325

1) 2517. Maximum Tastiness of Candy Basket: Problem Link

2) 2515. Shortest Distance to Target String in a Circular Array: Problem Link

3) 2516. Take K of Each Character From Left and Right: Problem Link

Weekly Contest 326

1) 2520. Count the Digits That Divide a Numberr Problem Link

2) 2521. Distinct Prime Factors of Product of Array Problem Link

3) 2522. Partition String Into Substrings With Values at Most K Problem Link

4) 2523. Closest Prime Numbers in Range Problem Link

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Sliding Winodws || Two Pointer

1) Path Folder 3. Longest Substring Without Repeating Characters : Problem Link

2) Path Folder 1004. Max Consecutive Ones III : Problem Link

3) Path Folder 904. Fruit Into Baskets : Problem Link

4) Path Folder 424. Longest Repeating Character Replacement : Problem Link

5) Path Folder 930. Binary Subarrays With Sum : Problem Link

6) Path Folder 1248. Count Number of Nice Subarrays : Problem Link

7) Path Folder 1358. Number of Substrings Containing All Three Characters : Problem Link

8) Path Folder 1423. Maximum Points You Can Obtain from Cards : Problem Link

9) Path Folder Longest K unique characters substring : Problem Link

10) Path Folder 992. Subarrays with K Different Integers : Problem Link

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Linked List

1) Path Folder 2. Add Two Numbers

2) Path Folder 705. Design HashSet

3) Path Folder Introduction to Linked List Problem Link

4) Path Folder Linked List Insertion Problem Link

5) Path Folder 237. Delete Node in a Linked List Problem Link

6) Path Folder Introduction to Doubly Linked List Problem Link

7) Path Folder Doubly linked list Insertion at given position Problem Link

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Graph

1) Path Folder BFS of graph : Problem Link

2) Path Folder DFS of Graph : Problem Link

3) Path Folder DFS of Graph : Problem Link

4) Path Folder 994. Rotting Oranges : Problem Link

5) Path Folder 733. Flood Fill : Problem Link

6) Path Folder Detect cycle in an undirected graph : Problem Link

7) Path Folder 547. Number of Provinces

8) Path Folder 542. 01 Matrix

9) Path Folder 130. Surrounded Regions

10) Path Folder 1020. Number of Enclaves

11) Path Folder 127. Word Ladder problem link

12) Path Folder Word Ladder II Leetcode link

13) Path Folder Topological sort (kahn's algo) problem link

14) Path Folder Number of Distinct Islands problem link

15) Path Folder 785. Is Graph Bipartite? problem link

16) Path Folder Detect cycle in a directed graph problem link

17) Path Folder LeetCode 207. Course Schedule problem link Leetcode || Path GFG --> problem link GFG

18) Path Folder LeetCode 210. Course Schedule II problem link Leetcode

19) Path Folder gfg Eventual Safe States problem link gfg || path folder lc --> problem link lc

20) Path Folder gfg Alien Dictionary problem link gfg

21) Path Folder gfg Shortest path in Undirected Graph having unit distance problem link gfg

22) Path Folder gfg Shortest path in Directed Acyclic Graph problem link gfg

23) Path Folder gfg Implementing Dijkstra Algorithm problem link gfg

24) Path Folder gfg Shortest Path in Weighted undirected graph problem link gfg

25) Path Folder gfg Shortest Distance in a Binary Maze problem link gfg || Path LC --> Problem Link LC

26) Path Folder gfg 1631. Path With Minimum Effort problem link gfg || Path LC --> Problem Link LC

27) Path Folder 787. Cheapest Flights Within K Stops Problem Link

28) Path Folder 743. Network Delay Time Problem Link

29) Path Folder 1976. Number of Ways to Arrive at Destination Problem Link GFG Link

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bIT Manipulation

1) Path Folder 338. Counting Bits