in this repository , I am try to practice and enhance my problem solving and coding skills by using
kotlin . this repository contains three major folders [easy - medium - hard] based on problem level, you can find the problem in every folder by problem name and number.
- 303. Range Sum Query - Immutable
- 1920. Build Array from Permutation
- 1913. Maximum Product Difference Between Two Pairs
- 653. Two Sum IV - Input is a BST
- 598. Range Addition II
- 543. Diameter of Binary Tree
- 155. Min Stack
- 226. Invert Binary Tree
- 404. Sum of Left Leaves
- 441. Arranging Coins
- 448. Find All Numbers Disappeared in an Array
- 461. Hamming Distance
- 35. Search Insert Position
- 1448. Count Good Nodes in Binary Tree
- 91. Decode Ways
- 633. Sum of Square Numbers
- 153. Find Minimum in Rotated Sorted Array
- 437. Path Sum III
- 151. Reverse Words in a String
- 75. Sort Colors
- 130. Surrounded Regions
- 260. Single Number III
- 43. Multiply Strings
- 96. Unique Binary Search Trees
- 122. Best Time to Buy and Sell Stock II
- 62. Unique Paths
- 450. Delete Node in a BST