#coding-journey

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Permutations · Q18:Given an array nums of distinct integers, return all the possible permutations. You can return the answer in any order. Example...

Find Pair given difference · Q17:Given an array Arr[] of size L and a number N, you need to write a program to find if there exists a pair of elements in...

Key Pair · Q16:Given an array Arr of N positive integers and another number X. Determine whether or not there exist two elements in Arr whose sum is...

Container with the most water · Q15:You are given an integer array height of length n. There are n vertical lines drawn such that the two endpoints of...

Trapping rain water · Q14:Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it can...

Range Addition · Q13:Assume you have an array of length n initialized with all 0's and are given k update operations. Each operation is represented as a...