1. Detect Loop in linked list | Linked List | 43.49% | | Medium |
2. Palindrome Linked List | Linked List | 41.48% | | Medium |
3. Categorize even and odd nodes in a Linked List | Linked List | 49.80% | | Medium |
4. Check for balanced Paranthesis | Stack | 28.56% | | Easy |
5. Asteroid Collision | Stack | 50.06% | | Medium |
6. Convert Infix To Prefix Notation | Stack | 52.94% | | Medium |
7. Histogram Max Rectangular Area | Stack | 32.12% | | Hard |
8. Implement Queue using Arrays | Queue | 47.24% | | Basic |
9. Minimum Cost of Ropes | Queue | 42.73% | | Medium |
10. Heap Sort | Heap | 53.06% | | Medium |
11. Word Search | Recursion | 32.69% | | Medium |
12. Print Pattern | Recursion | 56.39% | | Easy |
13. Floor in a Sorted Array | Sorting Algorithms | 33.75% | | Easy |
14. Minimum sum | Array Sorting Algorithms | 17.14% | | Medium |
15. Number of Pairs | Array | 21.82% | | Medium |
16. Find Transition Point | Array Searching Algorithms | 37.90% | | Easy |
17. Super Primes | Searching Algorithms | 24.90% | | Medium |
18. Pair Sum Closest to 0 | Searching Algorithms | 19.61% | | Easy |
19. Bitonic Point | Searching Algorithm | 58.67% | | Easy |
20. Alien Dictionary | String | 47.81% | | Hard |
21. Find the String | String | 72.98% | | Hard |
22. Lowest Common Ancestor of a Binary Tree | Tree | 50.00% | | Medium |
23. Binary Tree Maximum Path Sum | Tree | 50.00% | | Hard |
24. 0-1 Knapsack Problem | Array Dynamic Programming | 50.00% | | Medium |
25. Rod Cutting | Array Dynamic Programming | 50.00% | | Medium |
26. Stock buy and sell | Array Dynamic Programming | 29.18% | | Medium |
27. Maximum Meetings in One Room | Array Sorting Algorithms | 33.57% | | Medium |
28. Subset Sums | Recursion | 72.55% | | Medium |
29. Game with String | Heap | 53.96% | | Medium |
30. Interleave the First Half of the Queue with Second Half | Queue | 69.35% | | Medium |
31. Merge Sort for Linked List | Linked List | 74.76% | | Medium |
32. Reverse a Linked List in Groups | Linked List | 57.08% | | Medium |
33. Intersection of Two Linked Lists | Linked List | 35.30% | | Easy |
34. Reverse Words In A String | String | 47.80% | | Easy |
35. First Occurrence In A String | String | 50.08% | | Medium |
36. Distinct Paths II | Array Recursion Dynamic Programming 2D Array | 50.00% | | Medium |
37. Minimum Path Sum | Array Dynamic Programming 2D Array | 50.00% | | Medium |
38. Distinct Paths | Array Recursion Dynamic Programming 2D Array | 50.00% | | Medium |
39. Longest Increasing Subsequence | Array Dynamic Programming | 20.00% | | Medium |
40. Longest Common Subsequence | Array String Dynamic Programming | 50.00% | | Medium |
41. Number of Turns in Binary Tree | Tree | 50.00% | | Hard |
42. Find Largest Value in Each Tree Row | Tree | 50.00% | | Medium |
43. Tree Path Sum | Tree | 50.00% | | Medium |
44. Cake Distribution Problem | Array Searching Algorithms | 64.62% | | Hard |
45. Level Order Traversal of Binary Tree | Tree | 50.00% | | Medium |
46. Inorder Traversal Of Binary Tree | Tree | 50.00% | | Easy |
47. Preorder Traversal Of Binary Tree | Tree | 50.00% | | Easy |
48. Postorder Traversal Of Binary Tree | Tree | 50.00% | | Easy |
49. Height of Binary Tree | Tree | 50.00% | | Easy |
50. Same Binary Tree | Tree | 50.00% | | Easy |
51. Maximum Width of Binary Tree | Tree | 50.00% | | Easy |
52. Mirror Binary Tree | Tree | 50.00% | | Easy |
53. Search Insert Position | Array Sorting Algorithms | 48.03% | | Easy |
54. 3 Sum | Array Sorting Algorithm | 35.80% | | Medium |
55. K-Pangrams | String Hashing | 20.91% | | Medium |
56. Winner of an election | String Hashing | 53.75% | | Easy |
57. Making A Large Island | Graph BFS DFS | 52.36% | | Hard |
58. Stepping Numbers | BFS DFS | 48.44% | | Medium |
59. Course Schedule | Graph BFS DFS | 51.77% | | Medium |
60. You and your books | Array Dynamic Programming | 50.00% | | Easy |
61. Maximize dot product | Dynamic Programming | 13.27% | | Medium |
62. Next Smallest Palindrome | Array | 19.63% | | Hard |
63. Count Smaller elements | Array | 38.16% | | Hard |
64. Redundant Parenthesis | String Stack | 51.49% | | Hard |
65. Smallest factorial number | Searching Algorithms | 38.79% | | Medium |
66. Insertion Sort | Sorting Algorithms | 66.61% | | Easy |
67. Quick Sort | Sorting Algorithms | 55.23% | | Medium |
68. Shop in Candy Store | Sorting Algorithms | 45.43% | | Easy |
69. Tower of Hanoi | Recursion | 35.23% | | Medium |
70. Power Of Numbers | Recursion | 20.22% | | Medium |
71. Binary Heap Operations | Heap | 22.30% | | Medium |
72. Kth largest element | Heap | 64.92% | | Medium |
73. Sort a stack | Recursion | 69.19% | | Medium |
74. Reverse First K elements of Queue | Queue | 81.28% | | Medium |
75. First non-repeating in a stream | Queue | 31.65% | | Medium |
76. Queue using Linked List | Queue | 45.60% | | Easy |
77. Implement Min Stack | Stack | 22.59% | | Medium |
78. Number of NGEs to the right | Stack | 56.74% | | Medium |
79. Implement Stack using Linked List | Stack | 53.98% | | Easy |
80. Implement Stack Using Array | Stack | 54.76% | | Basic |
81. Flattening a Linked List | Linked List | 51.53% | | Medium |
82. Kth from End of Linked List | Linked List | 47.30% | | Medium |
83. Merge Two Sorted Lists | Linked List | 65.70% | | Medium |
84. Reverse a Linked List | Linked List | 78.10% | | Easy |
85. Roman Number to Integer | String | 43.21% | | Easy |
86. Longest Palindromic Substring | String | 34.80% | | Medium |
87. Remove Duplicates From A String | String Stack | 61.68% | | Easy |
88. Find Kth Rotation | Array Stack Searching Algorithm | 23.16% | | Easy |
89. Merge Sorted Arrays | Array Sorting Algorithms | 32.01% | | Easy |
90. 2Sum - Pair With Given Sum | Array Hashing Hashmap | 30.61% | | Easy |
91. Missing In Array | Array Searching Algorithms | 29.59% | | Easy |
92. Maximum Product Of Two Numbers | Array Sorting Algorithms | 81.34% | | Basic |
93. Maximum Subarray Sum | Array | 36.28% | | Medium |
94. Strings Rotations | String | 43.83% | | Medium |
95. Unique Permutations | String | 46.50% | | Medium |
96. Missing And Repeating | Array | 24.83% | | Easy |
97. Search In Rotated Sorted Array | Array Searching Algorithms | 37.64% | | Medium |
98. Form Anagram Groups | String Hashing | 69.80% | | Medium |
99. Longest Common Prefix | Array String | 44.20% | | Easy |
100. Count Inversions | Array Sorting Algorithms | 16.93% | | Medium |