All Hard Articles

GATE | GATE CS 2011 | Question 53

Consider the same data as given in previous question. After the update in the previous question, the link N1-N2 goes down. N2 will reflect this… Read More

GATE-CS-2011

GATE-GATE CS 2011

GATE

GATE | GATE CS 2011 | Question 49

Consider the same recursive C++ function that takes two arguments C++ unsigned int foo(unsigned int n, unsigned int r) { if (n > 0) return… Read More

GATE-CS-2011

GATE-GATE CS 2011

GATE

SAP Labs Interview Experience | Set 1 (On-Campus)

Hi, A brief documentation of my SAP Labs, India interview is as follows: Interview Round 1: Q1. What is I of ACID properties? Q2. What… Read More

SAP Labs

Experiences

Interview Experiences

GATE | GATE CS 2011 | Question 32

Consider a database table T containing two columns X and Y each of type integer. After the creation of the table, one record (X=1, Y=1)… Read More

GATE-CS-2011

GATE-GATE CS 2011

GATE

GATE | GATE CS 2011 | Question 28

On a non-pipelined sequential processor, a program segment, which is a part of the interrupt service routine, is given to transfer 500 bytes from an… Read More

GATE-CS-2011

GATE-GATE CS 2011

GATE

GATE | GATE CS 2011 | Question 18

If the difference between expectation of the square of a random variable (E[X²]) and the square of the expectation of the random variable (E[X])² is… Read More

GATE-CS-2011

GATE-GATE CS 2011

GATE

GATE | GATE CS 2011 | Question 17

(A) Q3 is planar while K4 is not (B) Neither K4 nor Q3 are planar (C) Both K4 and Q3 are planar (D) K4 is… Read More

GATE-CS-2011

GATE-GATE CS 2011

GATE

Java | Inheritance | Question 9

final class Complex { private final double re; private final double im; public Complex(double re, double im) { this.re = re; this.im =… Read More

Inheritance

java-inheritance

Java Quiz

Java | Inheritance | Question 8

Predict the output of following Java Program // filename Main.java class Grandparent { public void Print() { System.out.println("Grandparent's Print()"); } } class Parent extends… Read More

Inheritance

java-inheritance

Java Quiz

Java | Abstract Class and Interface | Question 2

Which of the following is true about interfaces in java. 1) An interface can contain following type of members. ....public, static, final fields (i.e., constants)… Read More

Abstract Class and Interface

Java-Abstract Class and Interface

Java Quiz

GATE | GATE CS 2012 | Question 57

Choose the most appropriate alternative from the options given below to complete the following sentence: Despite several ––––––––– the mission succeeded in its attempt to resolve… Read More

GATE-CS-2012

GATE-GATE CS 2012

GATE

GATE | GATE CS 2012 | Question 51

Table A Id Name Age ---------------- 12 Arun 60 15 Shreya 24 99 Rohit 11 Table B Id Name Age ---------------- 15 Shreya 24 25… Read More

GATE-CS-2012

GATE-GATE CS 2012

GATE

GATE | GATE CS 2012 | Question 41

Suppose (A, B) and (C,D) are two relation schemas. Let r1 and r2 be the corresponding relation instances. B is a foreign key that refers… Read More

GATE-CS-2012

GATE-GATE CS 2012

GATE

GATE | GATE CS 2012 | Question 36

Let G be a complete undirected graph on 6 vertices. If vertices of G are labeled, then the number of distinct cycles of length 4… Read More

GATE-CS-2012

GATE-GATE CS 2012

GATE

GATE | GATE CS 2012 | Question 5

The worst case running time to search for an element in a balanced in a binary search tree with n2^n elements is (A) (B) (C)… Read More

GATE-CS-2012

GATE-GATE CS 2012

GATE

Closest Pair of Points | O(nlogn) Implementation

We are given an array of n points in the plane, and the problem is to find out the closest pair of points in the… Read More

Divide and Conquer

DSA

Geometric

C++ | Inheritance | Question 10

Output of following program? CPP #include <iostream>#include<string>using namespace std; class Base{public: virtual string print() const { return \"This is Base class\"; }}; class Derived : public Base{public: virtual string print() const { return \"This… Read More

C++-Inheritance

Inheritance

C Language

C++ Quiz

Drishti-Soft Solutions Interview | Set 1

Location: Guagaon Position: Software Developer I decided to write this post because when i was preparing, I didn’t find any help on google about the… Read More

Drishti-Soft

DSA

Experiences

Interview Experiences

Mathematical

Given n line segments, find if any two segments intersect

Given n line segments (p1, q1), (p2, q2), … (pn, qn), find if the given line segments intersect with each other or not. Example: Input:… Read More

Geometric-Lines

DSA

Geometric

Johnson’s algorithm for All-pairs shortest paths

The problem is to find the shortest paths between every pair of vertices in a given weighted directed Graph and weights may be negative. We… Read More

Shortest Path

DSA

Graph