Leetcode Problem Solving

📜📓 Leetcode Algorithm and Data Structure code

👉 Solved Problem List 👈

No	Leetcode Problem Number	Problem Title	Link	Code
1	125	Valid Palindrom	Link	code
2	344	Reverse String	Link	code
3	937	Reorder Data in Log Files	Link	code
4	819	Most Common Word	Link	code
5	49	Group Anagrams	Link	code
6	5	Longest Palindromic Substring	Link	code
7	1	Two Sum	Link	code
8	42	Trapping Rain Water	Link	code
9	15	3Sum	Link	code
10	561	Array Partition	Link	code
11	238	Product of Array Except Self	Link	code
12	121	Best Time to Buy and Sell Stock	Link	code
13	234	Palindrome Linked List	Link	code
14	21	Merge Two Sorted Lists	Link	code
15	206	Reverse Linked List	Link	code
16	2	Add Two Numbers	Link	code
17	24	Swap Nodes in Pairs	Link	code
18	328	Odd Even Linked List	Link	code
19	92	Reverse Linked List II	Link	code
20	20	Valid Parentheses	Link	code
21	316	Remove Duplicate Letters	Link	code
22	739	Daily Temperatures	Link	code
23	225	Implement Stack using Queue	Link	code
24	232	Implement Queue using Stack	Link	code
25	622	Design Circular Queue	Link	code
26	641	Design Circular Deque	Link	code
27	23	Merge k Sorted Lists	Link	code
28	706	Design HashMap	Link	code
29	711	Jewels and Stones	Link	code
30	3	Longest Substring Without Repeating Characters	Link	code
31	347	Top K Frequent Elements	Link	code
32	200	Number of Islands	Link	code
33	17	Letter Combinations of a Phone Number	Link	code
34	46	Permutations	Link	code
35	77	Combinations	Link	code
36	39	Combination Sum	Link	code
37	78	Subsets	Link	code
38	332	Reconstruct Itinerary	Link	code
39	207	Course Schedule	Link	code
40	743	Network Delay Time	Link	code
41	787	Cheapest Flights Within K Stops	Link	code
42	104	Maximum Depth of Binary Tree	Link	code
43	543	Diameter of Binary Tree	Link	code
44	687	Longest Univalue Path	Link	code
45	226	Invert Binary Tree	Link	code
46	617	Merge Two Binary Trees	Link	code
47	297	Serialize and Deserialize Binary Tree	Link	code
48	110	Balanced Binary Tree	Link	code
49	310	Minimum Height Trees	Link	code
50	108	Convert Sorted Array To Binary Search Tree	Link	code
51	1038	Binary Search Tree to Greater Sum Tree	Link	code
52	938	Range Sum of BST	Link	code
53	783	Minimum Distance Between BST Nodes	Link	code
54	105	Construct Binary Tree from Preorder and Inorder Trversal	Link	code
55	215	Kth Largest Element in an Array	Link	code
56	208	Implement Trie(Prefix Tree)	Link	code
57	336	Palindrome Pairs	Link	code
58	148	Sort List	Link	code
59	56	Merge Intervals	Link	code
60	147	Insertion Sort List	Link	code
61	179	Largest Numbers	Link	code
62	242	Valid Anagram	Link	code
63	75	Sort Colors	Link	code
64	973	K Closest Points to Origin	Link	code
65	704	Binary Search	Link	code
66	33	Search in Rotated Sorted Array	Link	!empty
67	349	Intersection of Two Arrays	Link	code
68	167	Two Sum II - Input Array Is Sorted	Link	code
69	240	Search a 2D Matrix II	Link	code
70	136	Single Number	Link	code
71	461	Hamming Distance	Link	code
72	371	Sum of Two Integers	Link	code
73	393	UTF-8 Validation	Link	code
74	191	Numbers of 1 Bits	Link	code
75	239	Sliding Window Maximum	Link	code
76	76	Minimum Window Substring	Link	code
77	424	Longest Repeaating Character Replacement	Link	code
78	122	Best Time to Buy and Sell Stock II	Link	code
79	406	Queue Reconstruction by Height	Link	code
80	621	Task Scheduler	Link	code
81	134	Gas Station	Link	code
82	455	Assign Cookies	Link	code
83	169	Majority Element	Link	code
84	239	Different Ways to Add Paranthesis	Link	code
85	509	Fibonacci Number	Link	code
86	53	Maximum Subarray	Link	code
87	70	Climbing Stairs	Link	code
88	198	House Robber	Link	code