Leetcode - 268. Missing Number Given an array nums containing n distinct numbers in the range [0, n], return the only number in the range that is missing from the array. Solution func missin...

Leetcode - 202. Happy Number Write an algorithm to determine if a number n is happy. A happy number is a number defined by the following process: Starting with any positive inte...

Leetcode - 11. Container With Most Water You are given an integer array height of length n. There are n vertical lines drawn such that the two endpoints of the ith line are (i, 0) and (i,...

Leetcode - 26. Remove Duplicates from Sorted Array Given an integer array nums sorted in non-decreasing order, remove the duplicates in-place such that each unique element appears only on...

Leetcode - 66. Plus One You are given a large integer represented as an integer array digits, where each digits[i] is the ith digit of the integer. The digits are ordered from most signif...

Leetcode - 217. Contains Duplicate Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element is distinct. Solution func con...

Leetcode - 121. Best Time to Buy and Sell Stock You are given an array prices where prices[i] is the price of a given stock on the ith day. You want to maximize your profit by choosi...

Leetcode - 15. 3Sum Given an integer array nums, return all the triplets [nums[i], nums[j], nums[k]] such that i != j, i != k, and j != k, and nums[i] + nums[j] + nums[k] == 0. Notic...

Vim Editor Vi has 3 operation modes_ Command Mode.- default when opening file. Insert Mode. - by pressing (i) can go to insert mode. (Edit/Add/Remove Text) Last Line. - Press Esc to go bac...

Leetcode - 1. Two Sum Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target. You may assume that each input would h...