leetcode75

Blind 75 leetcode questions

Useful links:

• 14 Patterns to Ace Any Coding Interview Question
• Grind 75

Array

1. Two Sum (https://leetcode.com/problems/two-sum/description/)
2. Best Time to Buy and Sell Stock (https://leetcode.com/problems/best-time-to-buy-and-sell-stock/description/)
3. Contains Duplicate (https://leetcode.com/problems/contains-duplicate/description/)
4. Product of Array Except Self (https://leetcode.com/problems/product-of-array-except-self/description/)
5. Maximum Subarray (https://leetcode.com/problems/maximum-subarray/description/)
6. Maximum Product Subarray (https://leetcode.com/problems/maximum-product-subarray/description/)
7. Find Minimum in Rotated Sorted Array (https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/description/)
8. Search in Rotated Sorted Array (https://leetcode.com/problems/search-in-rotated-sorted-array/description/)
9. 3 Sum (https://leetcode.com/problems/3sum/description/)
10. Container With Most Water (https://leetcode.com/problems/container-with-most-water/description/)

Binary

11. Sum of Two Integers (https://leetcode.com/problems/sum-of-two-integers/description/)
12. Number of 1 Bits (https://leetcode.com/problems/number-of-1-bits/description/)
13. Counting Bits (https://leetcode.com/problems/counting-bits/description/)
14. Missing Number (https://leetcode.com/problems/missing-number/description/)
15. Reverse Bits (https://leetcode.com/problems/reverse-bits/description/)

Dynamic Programming

16. Climbing Stairs (https://leetcode.com/problems/climbing-stairs/)
17. Coin Change (https://leetcode.com/problems/coin-change/)
18. Longest Increasing Subsequence (https://leetcode.com/problems/longest-increasing-subsequence/)
19. Longest Common Subsequence (https://leetcode.com/problems/longest-common-subsequence/)
20. Word Break Problem (https://leetcode.com/problems/word-break/)
21. Combination Sum (https://leetcode.com/problems/combination-sum-iv/)
22. House Robber (https://leetcode.com/problems/house-robber/)
23. House Robber II (https://leetcode.com/problems/house-robber-ii/)
24. Decode Ways (https://leetcode.com/problems/decode-ways/)
25. Unique Paths (https://leetcode.com/problems/unique-paths/)
26. Jump Game (https://leetcode.com/problems/jump-game/description/)

Graph

27. Clone Graph (https://leetcode.com/problems/clone-graph/)
28. Course Schedule (https://leetcode.com/problems/course-schedule/)
29. Pacific Atlantic Water Flow (https://leetcode.com/problems/pacific-atlantic-water-flow/)
30. Number of Islands (https://leetcode.com/problems/number-of-islands/)
31. Longest Consecutive Sequence (https://leetcode.com/problems/longest-consecutive-sequence/)
32. Alien Dictionary (Leetcode Premium) (https://leetcode.com/problems/alien-dictionary/)
33. Graph Valid Tree (Leetcode Premium) (https://leetcode.com/problems/graph-valid-tree/)
34. Number of Connected Components in an Undirected Graph (Leetcode Premium) (https://leetcode.com/problems/number-of-connected-components-in-an-undirected-graph/)

Interval

35. Insert Interval (https://leetcode.com/problems/insert-interval/)
36. Merge Intervals (https://leetcode.com/problems/merge-intervals/)
37. Non-overlapping Intervals (https://leetcode.com/problems/non-overlapping-intervals/)
38. Meeting Rooms (Leetcode Premium) (https://leetcode.com/problems/meeting-rooms/)
39. Meeting Rooms II (Leetcode Premium) (https://leetcode.com/problems/meeting-rooms-ii/)

Linked List

40. Reverse a Linked List (https://leetcode.com/problems/reverse-linked-list/)
41. Detect Cycle in a Linked List (https://leetcode.com/problems/linked-list-cycle/)
42. Merge Two Sorted Lists (https://leetcode.com/problems/merge-two-sorted-lists/)
43. Merge K Sorted Lists (https://leetcode.com/problems/merge-k-sorted-lists/)
44. Remove Nth Node From End Of List (https://leetcode.com/problems/remove-nth-node-from-end-of-list/)
45. Reorder List (https://leetcode.com/problems/reorder-list/)

Matrix

46. Set Matrix Zeroes (https://leetcode.com/problems/set-matrix-zeroes/)
47. Spiral Matrix (https://leetcode.com/problems/spiral-matrix/)
48. Rotate Image (https://leetcode.com/problems/rotate-image/)
49. Word Search (https://leetcode.com/problems/word-search/)

String

50. Longest Substring Without Repeating Characters (https://leetcode.com/problems/longest-substring-without-repeating-characters/)
51. Longest Repeating Character Replacement (https://leetcode.com/problems/longest-repeating-character-replacement/)
52. Minimum Window Substring (https://leetcode.com/problems/minimum-window-substring/)
53. Valid Anagram (https://leetcode.com/problems/valid-anagram/)
54. Group Anagrams (https://leetcode.com/problems/group-anagrams/)
55. Valid Parentheses (https://leetcode.com/problems/valid-parentheses/)
56. Valid Palindrome (https://leetcode.com/problems/valid-palindrome/)
57. Longest Palindromic Substring (https://leetcode.com/problems/longest-palindromic-substring/)
58. Palindromic Substrings (https://leetcode.com/problems/palindromic-substrings/)
59. Encode and Decode Strings (Leetcode Premium) (https://leetcode.com/problems/encode-and-decode-strings/)

Tree

60. Maximum Depth of Binary Tree (https://leetcode.com/problems/maximum-depth-of-binary-tree/)
61. Same Tree (https://leetcode.com/problems/same-tree/)
62. Invert/Flip Binary Tree (https://leetcode.com/problems/invert-binary-tree/)
63. Binary Tree Maximum Path Sum (https://leetcode.com/problems/binary-tree-maximum-path-sum/)
64. Binary Tree Level Order Traversal ()
65. Serialize and Deserialize Binary Tree (https://leetcode.com/problems/serialize-and-deserialize-binary-tree/)
66. Subtree of Another Tree (https://leetcode.com/problems/subtree-of-another-tree/)
67. Construct Binary Tree from Preorder and Inorder Traversal (https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/)
68. Validate Binary Search Tree (https://leetcode.com/problems/validate-binary-search-tree/)
69. Kth Smallest Element in a BST (https://leetcode.com/problems/kth-smallest-element-in-a-bst/)
70. Lowest Common Ancestor of BST (https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree/)
71. Implement Trie (Prefix Tree) (https://leetcode.com/problems/implement-trie-prefix-tree/)
72. Add and Search Word (https://leetcode.com/problems/add-and-search-word-data-structure-design/)
73. Word Search II (https://leetcode.com/problems/word-search-ii/)

Heap

74. Merge K Sorted Lists (https://leetcode.com/problems/merge-k-sorted-lists/)
75. Top K Frequent Elements (https://leetcode.com/problems/top-k-frequent-elements/)
76. Find Median from Data Stream (https://leetcode.com/problems/find-median-from-data-stream/)