LeetCode Challenges! This repository was exclusively created for registering LeetCode challenges! The goal is to complete at least one challenge each day. Challenges # Name Language Difficulty 13 Roman to integer Kotlin Easy 198 Palindrome Linked List Kotlin Easy 136 Single number Kotlin Easy 383 Ransom note Kotlin Easy 231 Power of two Kotlin Easy 412 Fizz Buzz Kotlin Easy 876 Middle of the Linked List Kotlin Easy 1337 The K Weakest Rows in a Matrix Kotlin Easy 1 Two sum Kotlin Easy 3 Longest Substring Without Repeating Characters Kotlin Medium 1342 Number of Steps to Reduce a Number to Zero Kotlin Easy 1672 Richest Customer Wealth Kotlin Easy 1480 Running Sum of 1d Array Kotlin Easy 2 Add Two Numbers Kotlin Medium 20 Valid Parentheses Kotlin Easy 9 Palindrome Number Kotlin Easy 21 Merge Two Sorted Lists Kotlin Easy 1502 Can Make Arithmetic Progression From Sequence Kotlin Easy 217 Contains Duplicate Kotlin Easy 125 Valid Palindrome Kotlin Easy 217 Keep Multiplying Found Values by Two Kotlin Easy 242 Valid Anagram Kotlin Easy 2553 Separate the Digits in an Array Kotlin Easy 121 Best Time to Buy and Sell Stock Kotlin Easy 14 Longest Common Prefix Kotlin Easy 1967 Number of Strings That Appear as Substrings in Word Kotlin Easy 501 Find Mode in Binary Search Tree Kotlin Easy