Count natural numbers whose all permutation are greater than that number
Problem statement Given a number n, you have to find the count of all such numbers that satisfies the following condition: For any number x, all the permutations of x...
Iterative Method to find Ancestors of a Given Binary Tree
Problem Statement: Given a Binary Tree, you need to find all the ancestors of a particular node of that binary tree. You will be given the value that is stored...
Largest rectangular Area in Histogram – Set 2
Problem Statement You will be given an array that represents a histogram. The values of the array represent the height of the bars of the histogram and the width of...
Merge Overlapping Intervals
Problem Statement You will be given an array of time intervals that will be in any random order. You have to merge all the overlapping intervals and print only the...
Iterative Postorder Traversal | Set 2 (Using One Stack)
Problem Statement: You are given a binary tree. Your task is to print the postorder traversal of the binary tree using just 1 stack. Example Consider the tree given below....
Program for Tower of Hanoi
Problem statement In the Tower of Hanoi problem you are given three rods (“Source”, “Destination”, “Auxiliary”) and n disks. Initially, all the disks are stacked on the source rod in...
Cognizant GenC Interview Questions – Set-2(Technical Interview Questions)
Cognizant is a multinational technology company based in the United States specializing in business consulting, information technology, and outsourcing. The company's headquarters are in Teaneck, New Jersey. Cognizant is a...
Reverse Individual Words
Problem Statment You are given a string. This string contains many words that are space separated. You have to reverse each word in the string individually. Examples The input string...
10 Things to keep in mind while making a software developer resume
Are you starting on a job hunt as a software developer? Or do you want to stand out among your college mates in campus interviews? No matter which is the...
20 most common interview questions and answers for freshers
1. What are the SDLC models present? Ans. Waterfall Model, Spiral Model, Big-bag model, Iterative Model, and V- Model are some of the famous SDLC models. 2. What are the...
Cisco interview questions for freshers
Thousands of job seekers apply every year to Cisco where their skills are tested and thoroughly. Here we will be discussing some of the important questions that were commonly asked...
Find a Number
Concepts Used Binary Search Difficulty Level Easy Problem Statement : Finding a number has always been an interesting puzzle! Well in this problem we are given a sorted array of...
Nearest Cell(paid)
CONCEPTS USED: Recursion DIFFICULTY LEVEL: Easy PROBLEM STATEMENT (SIMPLIFIED): Rahul is stuck in a maze world, where the maze is a binary matrix of size NXM (each cell has value...
Beautiful Bracket String
Concepts Used: Stack Difficulty Level: Medium. Problem Statement : Find the minimum number of replacements required to make the given string of braces balanced. See original problem statement here Example:...
Files
Concepts Used Basic operations of stack. Difficulty Level: Hard. Problem Statement : Nikhil now got a job. His task is to evaluate files. His boss comes and puts a file...
Kth Smallest Number
Concepts Used Heap Difficulty Level Easy Problem Statement : Given an array arr[ ] and a number K where K is smaller than the size of the array, the task...
Aman and Shopping
Concepts Used Sorting Difficulty Level Easy Problem Statement (Simplified): For a given array A, find the total number of elements you can pick in given capacity X. You can't pick...
