## Introduction to SQLite

SQLite is a self-contained, high-reliability, embedded, full-featured, public-domain, SQL database engine. It is the most used database engine in the world. It is an in-process… Read More »

## XOR of numbers that appeared even number of times in given Range

Given an array of numbers of size N and Q queries. Each query or a range can be represented by L (LeftIndex) and R(RightIndex). Find… Read More »

## PHP | Program to delete an element from array using unset() function

Given an array of elements, we have to delete an element from the array by using the unset() function. Examples: Input : \$arr = array(“Harsh”,… Read More »

## Python program to convert floating to binary

Python doesn’t provide any inbuilt method to easily convert floating point decimal numbers to binary number. So, Let’s do this manually. Approach : To convert… Read More »

## What is data type of FILE in C ?

Prerequisite : Basics of File Handling In C language, while file handling is done a word FILE is used. What is FILE? Example FILE *fp1,… Read More »

## Median of two sorted arrays with different sizes in O(log(min(n, m)))

Given two sorted arrays, a[] and b[], task is to find the median of these sorted arrays, in O(log(min(n, m)), when n is the number… Read More »

## Subsets having Sum between A and B

Given a set of N integers. Find how many subsets of given array have sum between A and B(inclusive). Constraints: 1 ≤ N ≤ 34,… Read More »

## Check if bitwise AND of any subset is power of two

Given an array arr[] of n positive integers. The task is to check if there exist any subset of the array whose bitwise AND is… Read More »

## CSS Introduction

Course Navigation Cascading Style Sheets, fondly referred to as CSS, is a simply designed language intended to simplify the process of making web pages presentable.… Read More »

## Shortest path in an unweighted graph

Given a unweighted graph, a source and a destination, we need to find shortest path from source to destination in the graph in most optimal… Read More »

## Maximum sum of absolute difference of an array

Given an array, we need to find the maximum sum of absolute difference of the array elements for a sequence of this array. Examples: Input… Read More »

## Fuzzy Logic | Introduction

The term fuzzy refers to things which are not clear or are vague. In the real world many times we encounter a situation when we… Read More »

## k-Rough Number or k-Jagged Number

A k-rough or k-jagged number is a number whose smallest prime factor is greater than or equal to the number ‘k’. Given numbers ‘n’ and… Read More »

## PHP | str_rot13() Function

The function str_rot13() is a built-in function in php. This function accepts a string and shifts every alphabet present in the string by 13 places… Read More »

## Java Math expm1() method with Example

The java.lang.Math.expm1() returns ex -1. Note that for values of x near 0, the exact sum of expm1(x) + 1 is much closer to the… Read More »