All Easy Articles

Maximize a number considering permutations with values smaller than limit

Given two numbers N and M. Construct maximal number by permuting (changing order) the digits of N, not exceeding M. Note: It is allowed to… Read More

number-digits

permutation

DSA

Mathematical

Strings

Program to find simple moving average

Simple Moving Average is the average obtained from the data for some t period of time . In normal mean, it’s value get changed with… Read More

statistical-algorithms

DSA

Mathematical

Difference between Multiprogramming, multitasking, multithreading and multiprocessing

Multiprogramming – Multiprogramming is known as keeping multiple programs in the main memory at the same time ready for execution. Multiprocessing – A computer using… Read More

Difference Between

GATE CS

Operating Systems

Python program to find common elements in three lists using sets

Prerequisite: Sets in Python Given three arrays, we have to find common elements in three sorted lists using sets. Examples : Input : ar1 =… Read More

Python set-programs

python-set

Misc

Python

Python Programs

Number of decimal numbers of length k, that are strict monotone

We call a decimal number strict monotone if: D[i-1] < D[i], 0 < i < |D| Write a program which takes positive number… Read More

number-digits

DSA

Dynamic Programming

Mathematical

Misc

SQL using Python and SQLite | Set 2

Databases offer numerous functionalities by which one can manage large amounts of information easily over the web, and high-volume data input and output over a… Read More

Misc

Python

SQL

Puzzle | The Counters and Board

Given 2n counters where n > 1. You have to place these 2n counters on an n × n board so that no more than… Read More

Arrangement Puzzles

Misc

Puzzles

Program to print the arrow pattern

Given the value of n, print the arrow pattern.Examples : Input : n = 5 Output : * ** *** **** ***** **** *** **… Read More

Basic Coding Problems

pattern-printing

DSA

Misc

Clustering in Machine Learning

In real world, not every data we work upon has a target variable. This kind of data cannot be analyzed using supervised learning algorithms. We… Read More

AI-ML-DS With Python

ML-Clustering

AI-ML-DS

Machine Learning

Relationship between number of nodes and height of binary tree

Prerequisite – Binary Tree Data Structure In this article, we will discuss various cases for relationship between number of nodes and height of binary tree. Before… Read More

Discrete Mathematics

DSA

Engineering Mathematics

GATE CS

Tree

array::empty() in C++ STL

Array classes are generally more efficient, light-weight and reliable than C-style arrays. The introduction of array class from C++11 has offered a better alternative for… Read More

cpp-array

STL

C++

Python Set | difference_update()

The difference_update() method helps in an in-place way of differentiating the set. The previously discussed set difference() helps to find out the difference between two… Read More

python-set

Python

Designated Initializers in C

Standard C90 requires the elements of an initializer to appear in a fixed order, the same as the order of the elements in the array… Read More

c-array

C-Struct-Union-Enum

C Language

C/C++ Puzzles

Technical Scripter

Making elements distinct in a sorted array by minimum increments

Given a sorted integer array. We need to make array elements distinct by increasing values and keeping array sum minimum possible. We need to print… Read More

Arrays

DSA

Searching

Maximum subarray sum in O(n) using prefix sum

Given an Array of Positive and Negative Integers, find out the Maximum Subarray Sum in that Array. Examples: Input1 : arr = {-2, -3, 4,… Read More

prefix-sum

subarray

subarray-sum

Arrays

DSA

Dynamic Programming

Python List remove() Method

Python list remove() method removes a given element from the list. Example: Python3 lis = ['a', 'b', 'c']lis.remove("b")print(lis) Output['a', 'c'] List remove() Syntaxlist_name.remove(obj) Parameterobj: object… Read More

Python-Built-in-functions

python-list

python-list-functions

Python

Trailing number of 0s in product of two factorials

Given two integer N or M find the number of zero’s trailing in product of factorials (N!*M!)? Examples: Input : N = 4, M = 5… Read More

factorial

number-theory

DSA

Mathematical

Find last k digits in product of an array numbers

Given a array size of n, find the last k digits (1 <= k < 10) of product of array numbers Examples: Input : a[]… Read More

Modular Arithmetic

number-digits

Arrays

DSA

Cleaning the room

Given a room with square grids having ‘*’ and ‘.’ representing untidy and normal cells respectively. You need to find whether room can be cleaned… Read More

programming-puzzle

Competitive Programming

DSA

Minimum pair sum operations to make array each element divisible by 4

Given an array of positive integers of length n. Our task is to find minimum number of operations to convert an array so that arr[i]… Read More

divisibility

Arrays

DSA