Sort Colors In Place
We can solve this by many different ways. Solution 1 Will be counting all the number of 0’s, 1’s and 2’s. Then insert those number of…
Search a 2D Matrix in C++
Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties: Integers in each row are…
Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in-place.
Example 1: Input: [ [1,1,1], [1,0,1], [1,1,1] ] Output: [ [1,0,1], [0,0,0], [1,0,1] ] Example 2: Input: [ [0,1,2,0], [3,4,5,2], [1,3,1,5] ]…
Jump Game II in CPP
Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents…
Simplify Path CPP
Given an absolute path for a file (Unix-style), simplify it. For example, path = “/home/”, => “/home” path =…
Minimum Path Sum in CPP
Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along…
Unique Paths II in CPP
Problem Explanation: A robot is located at the top-left corner of a m x n grid. The robot can only move either down or right at any point in…
Unique Paths Solution in CPP
A robot is located at the top-left corner of a m x n grid (marked ‘Start’ in the diagram below). The robot can only move either…
Rotate linked list by k nodes
Example 1: Input: 1->2->3->4->5->NULL, k = 2 Output: 4->5->1->2->3->NULL Explanation: rotate 1 steps to the…
Intersection of Two Linked Lists in c++
Write a program to find the node at which the intersection of two singly linked lists begins. For example, the following two linked lists: A:…