dhrupad17 / data-structure-ii_leetcode

In computer science, a data structure is a way to store and organize data. During the computer programming process, identifying and using the appropriate data structure is an important task as it can improve the overall efficiency of the algorithm. In large-scale systems, choosing the most suitable data structure directly impacts the difficulty of program design and the final quality and performance.

Data-Structure-II

Questions

DAYS	LEETCODE PROBLEM NO	NAME	DIFFICULTY	SOLUTIONS
DAY1	136	Single Number	Easy	👉Click Here
	169	Majority Element	Easy	👉Click Here
	15	3Sum	Medium	👉Click Here
DAY2	75	Sort Colors	Medium	👉Click Here
	56	Merge Intervals	Medium	👉Click Here
	706	Design HashMap	Easy	👉Click Here
DAY3	119	Pascal's Triangle II	Easy	👉Click Here
	48	Rotate Image	Medium	👉Click Here
	59	Spiral Matrix II	Medium	👉Click Here
DAY4	240	Search a 2D Matrix II	Medium	👉Click Here
	435	Non-overlapping Intervals	Medium	👉Click Here
DAY5	334	Increasing Triplet Subsequence	Medium	👉Click Here
	238	Product of Array Except Self	Medium	👉Click Here
	560	Subarray Sum Equals K	Medium	👉Click Here
DAY6	415	Add Strings	Easy	👉Click Here
	409	Longest Palindrome	Easy	👉Click Here
DAY7	290	Word Pattern	Easy	👉Click Here
	763	Partition Labels	Medium	👉Click Here
DAY8	49	Group Anagrams	Medium	👉Click Here
	43	Multiply Strings	Medium	👉Click Here
DAY9	187	Repeated DNA Sequences	Medium	👉Click Here
	05	Longest Palindromic Substring	Medium	👉Click Here
DAY10	02	Add Two Numbers	Medium	👉Click Here
	142	Linked List Cycle II	Medium	👉Click Here
DAY11	160	Intersection of Two Linked Lists	Easy	👉Click Here
	82	Remove Duplicates from Sorted List II	Medium	👉Click Here
DAY12	24	Swap Nodes in Pairs	Medium	👉Click Here
	707	Design Linked List	Medium	👉Click Here
DAY13	25	Reverse Nodes in k-Group	Hard	👉Click Here
	143	Reorder List	Medium	👉Click Here
DAY14	155	Min Stack	Medium	👉Click Here
	1249	Minimum Remove to Make Valid Parentheses	Medium	👉Click Here
	1823	Find the Winner of the Circular Game	Medium	👉Click Here
DAY15	108	Convert Sorted Array to Binary Search Tree	Easy	👉Click Here
	105	Construct Binary Tree from Preorder and Inorder Traversal	Medium	👉Click Here
	183	Binary Tree Zigzag Level Order Traversal	Medium	👉Click Here
DAY16	199	Binary Tree Right Side View	Medium	👉Click Here
	113	Path Sum II	Medium	👉Click Here
	450	Delete Node in a BST	Medium	👉Click Here
DAY17	230	Kth Smallest Element in a BST	Medium	👉Click Here
	173	Binary Search Tree Iterator	Medium	👉Click Here
DAY18	236	Lowest Common Ancestor of a Binary Tree	Medium	👉Click Here
	297	Serialize and Deserialize Binary Tree	Medium	👉Click Here
DAY19	997	Find the Town Judge	Easy	👉Click Here
	1557	Minimum Number of Vertices to Reach All Nodes	Medium	👉Click Here
	841	Keys and Rooms	Medium	👉Click Here
DAY20	215	Kth Largest Element in an Array	Medium	👉Click Here
	347	Top K Frequent Elements	Medium	👉Click Here
DAY21	451	Sort Characters By Frequency	Medium	👉Click Here
	973	K Closest Points to Origin	Medium	👉Click Here

🛠 Skills

Array, String,Linked List,Stack,Queue,Tree,Graph,Heap

🎖️ Badges