LeetCode

LeetCode Problems with Solutions

#	Problem	Solution	Difficulty
1	Two Sum	PHP, JS	Easy
3	Longest Substring Without Repeating Characters	PHP	Medium
5	Longest Palindromic Substring	PHP	Medium
7	Reverse Integer	PHP	Medium
15	3Sum	PHP	Medium
20	Valid Parentheses	PHP, JS	Easy
23	Merge K Sorted Lists	PHP	Hard
24	Swap Nodes in Pairs	PHP	Medium
28	Find the Index of the First Occurence in a String	PHP	Medium
33	Search in Rotated Sorted Array	PHP	Medium
35	Search Insert Position	PHP	Easy
49	Group Anagrams	PHP	Medium
53	Maximum Subarray	PHP	Medium
55	Jump Game	PHP	Medium
58	Length of Last Word	PHP, JS	Easy
61	Rotate List	PHP	Medium
83	Remove Duplicates from Sorted List	PHP, JS	Easy
88	Merge Sorted Array	PHP	Easy
94	Binary Tree Inorder Traversal	PHP	Easy
104	Maximum Depth of Binary Tree	PHP	Easy
105	Construct Binary Tree from Preorder and Inorder Traversal	PHP	Medium
111	Minimum Depth of Binary Tree	PHP	Easy
121	Best Time To Buy and Sell Stock	PHP, JS	Easy
134	Gas Station	PHP	Medium
142	Linked List Cycle II	PHP	Medium
144	Binary Tree Preorder Traversal	PHP	Easy
145	Binary Tree Postorder Traversal	PHP	Easy
155	Min Stack	PHP	Medium
167	Two Sum II - Input Array is Sorted	PHP	Medium
189	Rotate Array	PHP	Medium
198	House Robber	PHP	Medium
200	Number of Islands	PHP	Medium
203	Remove Linked List Elements	PHP	Easy
207	Course Schedule	PHP	Medium
213	House Robber II	PHP	Medium
230	Kth Smallest Element In a BST	PHP	Medium
238	Product of Array Except Self	PHP	Medium
303	Range Sum Query - Immutable	PHP	Easy
347	Top K Frequent Elements	PHP	Medium
417	Pacific Atlantic Water Flow	PHP	Medium
438	Find All Anagrams in a String	PHP	Medium
540	Single Element In a Sorted Array	PHP	Medium
547	Number of Provinces	PHP	Medium
560	Subarray Sum Equals K	PHP	Medium
622	Design Circular Queue	PHP	Medium
647	Palindromic Substrings	PHP	Medium
678	Valid Parenthesis String	PHP	Medium
704	Binary Search	PHP	Easy
707	Design Linked List	PHP	Medium
746	Min Cost Climbing Stairs	PHP	Easy
846	Hand of Straights	PHP	Medium
875	Koko Eating Bananas	PHP	Medium
904	Fruit Into Baskets	PHP	Medium
977	Squares of a Sorted Array	PHP	Easy
1137	N-th Tribonacci Number	PHP	Easy
1202	Smallest String With Swaps	PHP	Medium
1876	Substrings of Size Three with Distinct Characters	PHP	Easy
1909	Remove One Element to Make the Array Strictly Increasing	PHP	Easy
1971	Find If Path Exists in Graph	PHP	Easy
2500	Delete Greatest Element in Each Row	PHP	Easy

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