Featured Article
Why learning C Programming is a must?
C is a procedural programming language. It was initially developed by Dennis Ritchie between 1969 and 1973. It was mainly developed as a system programming… Read More »
Featured Article
Must Do Coding Questions for Companies like Amazon, Microsoft, Adobe, …
As the placement season is back so are we to help you ace the interview. We have selected some most commonly asked and must do… Read More »
Featured Article
Introduction to HTML CSS | Learn to Design your First Website in Just 1 Week
This is an introduction course to HTML and CSS which will help you learn all about the basics of HTML and CSS needed to begin… Read More »
Number of submatrices with OR value 1
Given a N*N binary matrix, task is to find the count of rectangular sub-matrices with OR value 1. Examples: Input : arr[][] = {{0, 0,… Read More »
XOR of XORs of all sub-matrices
Given a ‘N*N’ matrix, the task is to find the XOR of XORs of all possible sub-matrices. Examples: Input :arr = {{3, 1}, {1, 3}}… Read More »
Python | Convert dictionary to list of tuples
Given a dictionary, write a Python program to convert the given dictionary into list of tuples. Examples: Input: { ‘Geeks’: 10, ‘for’: 12, ‘Geek’: 31… Read More »
Number of subarrays such that XOR of one half is equal to the other
Given an array of N numbers, the task is to find the number of sub-arrays (size of the sub-array should be an even number) of… Read More »
Python | Convert list of tuples into list
Given a list of tuples, write a Python program to convert it into list. Examples: Input: [(11, 20), (13, 40), (55, 16)] Output:[11, 20, 13,… Read More »
Python | Check if two lists have any element in common
Sometimes we encounter the problem of checking if one list contains any element of another list. This kind of problems is quite popular in competitive… Read More »
Find Nth positive number whose digital root is X
Given a number X ( 1<= X <= 9) and a positive number N, find the Nth positive number whose digital root is X. Digital… Read More »
Number of submatrices with all 1s
Given a N*N matrix containing only 0s and 1s, the task is to count the number of submatrices containing all 1s. Examples: Input : arr[][]… Read More »
Python | Convert list of nested dictionary into Pandas dataframe
Given a list of nested dictionary, write a Python program to create a Pandas dataframe using it. Let’s understand stepwise procedure to create Pandas Dataframe… Read More »
Maximum length subarray with difference between adjacent elements as either 0 or 1
Given an array of n integers. The task is to find the maximum length of the sub-array such that absolute difference between all the consecutive… Read More »
Minimum elements to be removed such that sum of adjacent elements is always even
Given an array of N integers. The task is to eliminate the minimum number of elements such that in the resulting array the sum of… Read More »
Anti Clockwise spiral traversal of a binary tree
Given a binary tree, the task is to print the nodes of the tree in an anti-clockwise spiral manner. Examples: Input: 1 / \ 2… Read More »
Perl | Getting the Number of Elements of an Array
An array in Perl is a variable used to store an ordered list of scalar values. An array variable is preceded by an “at” (@)… Read More »
Python | Convert a set into dictionary
Sometimes we need to convert one data structure into another for various operations and problems in our day to day coding and web development. Like… Read More »
Reverse Level Order traversal in spiral form
Given a binary tree, the task is to print the reverse level order in spiral form. Examples: Input: 1 / \ 2 3 / \… Read More »