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Check if the given permutation is a valid DFS of graph

Given a graph with N nodes numbered from 1 to N and M edges and an array of numbers from 1 to N. Check if… Read More

cpp-map

DFS

permutation

DSA

Graph

Hash

Sorting

Technical Scripter

Powers of 2 to required sum

Given an integer N, task is to find the numbers which when raised to the power of 2 and added finally, gives the integer N.… Read More

DSA

Mathematical

Technical Scripter

TechTips

Sum of range in a series of first odd then even natural numbers

The sequence first consists of all the odd numbers starting from 1 to n and then remaining even numbers starting 2 up to n. Let’s… Read More

number-theory

series

series-sum

Competitive Programming

DSA

Mathematical

Finding n-th term of series 3, 13, 42, 108, 235…

Given a number n, find the n-th term in the series 3, 13, 42, 108, 235…Examples: Input : 3 Output : 42 Input : 4… Read More

Basic Coding Problems

series

DSA

Mathematical

Move matrix elements in given direction and add elements with same value

Given a matrix m[ ][ ] of size n x n consisting of integers and given a character ‘x’ indicating the direction. Value of ‘x’… Read More

array-rearrange

cpp-array

cpp-vector

Arrays

DSA

Matrix

8086 program to determine largest number in an array of n numbers

Problem – Write a program in 8086 microprocessor to find out the largest among 8-bit n numbers, where size “n” is stored at memory address… Read More

microprocessor

system-programming

Computer Organization & Architecture

8085 program to find 1’s and 2’s complement of 16-bit number

Prerequisite – 8085 program to find 1’s and 2’s complement of 8-bit number Problem – – Write a program to find 1’s and 2’s complement… Read More

complement

microprocessor

system-programming

Computer Organization & Architecture

Message Dialogs in Java (GUI)

Message dialogs provide information to the user. Message dialogs are created with the JOptionPane.showMessageDialog() method. We call the static showMessageDialog() method of the JOptionPane class… Read More

Java

Python | Calculate geographic coordinates of places using google geocoding API

Geocoding is the process of converting addresses into geographic coordinates like latitude and longitude, which can be used to mark position on map.To use the… Read More

Python

Python Programs

Compiler Design | Syntax Directed Definition

Prerequisite – Introduction to Syntax Analysis, Syntax Directed Translation Syntax Directed Definition (SDD) is a kind of abstract specification. It is generalization of context free grammar… Read More

Compiler Design

GATE CS

Technical Scripter

8085 program to find 1’s and 2’s complement of 8-bit number

Problem – Write a program to find 1’s and 2’s complement of 8-bit number where starting address is 2000 and the number is stored at… Read More

complement

microprocessor

system-programming

Computer Organization & Architecture

C++ set for user define data type

The C++ STL set is a data structure used to store the distinct value in ascending or descending order. By default, we can use it… Read More

cpp-set

STL

C++

Output of C++ Programs | Set 49

What is the output of the following program? CPP #include <iostream> using std::cout; int main() { int i = 0; cout << (i = 0… Read More

Misc

ISRO CSE Syllabus for Scientist/Engineer Exam 2018

There is no pre-defined syllabus for the ISRO for Scientist/Engineer 2018 exam. Although, we can infer that Syllabus is similar pattern as GATE CS Syllabus… Read More

Misc

Assigning multiple characters in an int in C language

Consider the following C program. #include <stdio.h> int main(void) { int a = 'd'; printf("%d\n", a); /*OUTPUT - 100 (ASCII Code for character d)*/… Read More

C Language

C/C++ Puzzles

Computer Subject

Program Output

Technical Scripter

Dynamic Programming | Wildcard Pattern Matching | Linear Time and Constant Space

Given a text and a wildcard pattern, find if wildcard pattern is matched with text. The matching should cover the entire text (not partial text).The… Read More

C++ Programs

Competitive Programming

DSA

Dynamic Programming

Strings

Callback using Interfaces in Java

Callback in C/C++ : The mechanism of calling a function from another function is called “callback”. Memory address of a function is represented as ‘function… Read More

java-interfaces

Java

XOR Encryption by Shifting Plaintext

Here is a cipher algorithm, based on hexadecimal strings that is implemented by XORing the given plaintext, N number of times where N is its… Read More

Algorithms

Bit Magic

Competitive Programming

DSA

Mathematical

Puzzles

Python

Maximize array elements upto given number

Given an array of integers, a number and a maximum value, task is to compute the maximum value that can be obtained from the array… Read More

cpp-array

Arrays

DSA

Dynamic Programming

Recursion

Microsoft Interview Experience | Set 171 (Experienced)

About Me: 6.5 Years experienced professional. [Online] Round 0: Hacker rank 90 min online test. [Onsite] Round 1: Given a string, return whether string is… Read More

Experienced

Experiences

Interview Experiences