Featured Article
Invert actual bits of a number
Given a non-negative integer n. The problem is to invert the bits of n and print the number obtained after inverting the bits. Note that… Read More »
Featured Article
Replacing an element makes array elements consecutive
Given an array of positive distinct integers. We need to find the only element whose replacement with any other value makes array elements distinct consecutive.… Read More »
Featured Article
Guava Library in Java
Google Guava is an open-source(a decentralized software-development model that encourages open collaboration) set of common libraries for Java, mainly developed by Google engineers. It helps… Read More »
Centered Square Number
Given a number n , the task is to find nth Centered Square Number. Centered Square Number is a centered figurate number that gives the… Read More »
Splint — A C program verifier
C compiler is pretty vague in many aspects of checking program correctness, particularly in type checking. Careful use of prototyping of functions can assist modern… Read More »
Sonetel Interview Experience | Set 1 (Telephonic Round)
Round 1 : Telephonic Round 1. SIP registration 2. SIP call b/w user-agent A to user-agent B 3. What is dialogue, transaction, session 4. What… Read More »
Reflection of a point at 180 degree rotation of another point
Given two points coordinates (x1, y1) and (x2, y2)on 2D plane. The task is to find the reflection of (x1, y1) at 180 degree rotation… Read More »
Sum of square-sums of first n natural numbers
Given a positive integer n. The task is to find the sum of the sum of square of first n natural number. Examples: Input :… Read More »
Flood fill algorithm using C graphics
Given a rectangle, your task to fill this rectangle using flood fill algorithm. Examples: Input : rectangle(left = 50, top = 50, right= 100, bottom… Read More »
Java Swing | JSlider
JSlider is a part of Java Swing package . JSlider is an implementation of slider. The Component allows the user to select a value by… Read More »
Check if a given matrix is Hankel or not
Given a matrix m[][] of size n x n. The task is to check whether given matrix is Hankel Matrix or not. In linear algebra,… Read More »
AWS EC2 Instance Setup with Apache Server
Amazon Web Services (AWS): Amazon Web Services (AWS) is a secure cloud services platform, offering compute power, database storage, content delivery and other functionality to… Read More »
Operating Systems | States of a process
Prerequisite – Introduction, Process Scheduler States of a process are as following: New (Create) – In this step process is about to create but not… Read More »
Computer Network | Carrier sense multiple access (CSMA)
Prerequisite – Multiple Access Protocols This method was developed to decrease the chances of collisions when two or more stations start sending their signals over… Read More »
Maximum profit from sale of wines
Given n wines in a row, with integers denoting the cost of each wine respectively. Each year you can sale the first or the last… Read More »
Prefixes with more a than b
Given a string S consisting of only characters ‘a’ and ‘b’, and an integer N. The string S is added N times to obtain string… Read More »
Find sub-string with given power
Given a string of lowercase alphabets, the task is to find indexes of a substring with given power. Assume power of a to be 1,… Read More »
Find maximum and minimum distance between magnets
Given coordinates of two pivot points (x0, y0) & (x1, y1) in coordinates plane. Along with each pivot, two different magnets are tied with the… Read More »