All Medium Articles

Count distinct substrings of a string using Rabin Karp algorithm

Given a string, return the number of distinct substrings using Rabin Karp Algorithm. Examples: Input : str = “aba”Output : 5Explanation :Total number of distinct… Read More

frequency-counting

Java-HashMap

Python dictionary-programs

substring

Competitive Programming

DSA

Hash

Strings

Count of binary strings of length N having equal count of 0’s and 1’s

Given an integer N, the task is to find the number of binary strings possible of length N having same frequency of 0s and 1s.… Read More

binary-representation

binary-string

permutation

Permutation and Combination

Bit Magic

Combinatorial

DSA

Dynamic Programming

Mathematical

Strings

Check if an array can be split into subsets of K consecutive elements

Given an array arr[] and integer K, the task is to split the array into subsets of size K, such that each subset consists of… Read More

cpp-map

frequency-counting

subset

Arrays

Data Structures

DSA

Hash

Searching

Sorting

Important functions of STL Components in C++

C++ // C++ code #include <iostream> #include <utility> using namespace std; int main() { // Declaring the PAIR1 of int and char // IF… Read More

cpp-list

cpp-map

cpp-map-functions

cpp-priority-queue

cpp-queue

cpp-set

cpp-stack

cpp-stack-functions

cpp-unordered_map

cpp-unordered_map-functions

cpp-vector

STL

Articles

C++

C++ Programs

Competitive Programming

Data Structures

DSA

Queue

Stack

Split numbers from 1 to N into two equal sum subsets

Given an integer N, the task is to divide the numbers from 1 to N into two nonempty subsets such that the sum of elements… Read More

Natural Numbers

Numbers

subset

Algorithms

Analysis of Algorithms

Arrays

DSA

Minimize difference between maximum and minimum of Array by at most K replacements

Given an array arr[] and an integer K, that task is to choose at most K elements of the array and replace it by any… Read More

two-pointer-algorithm

Algorithms

Arrays

C++

C++ Programs

Competitive Programming

Difference Between

DSA

Greedy

Mathematical

Pattern Searching

Sorting

Maximum profit by buying and selling a stock at most twice | Set 2

Given an array prices[] which denotes the prices of the stocks on different days, the task is to find the maximum profit possible after buying… Read More

Arrays

Data Structures

Java 8

Arrays

DSA

Dynamic Programming

Permutation of Array such that sum of adjacent elements are not divisible by 3

Given an array arr[] of positive integers, the task is to find the permutation of the array such that the sum of adjacent elements is… Read More

divisibility

permutation

Algorithms

Arrays

C++ Programs

Combinatorial

DSA

Greedy

Mathematical

Tr0ll 3 Walkthrough of Check the Flag or CTF Problem

The CTF or Check the Flag problem is posted on vulnhub.com. VulnHub is a platform which provides vulnerable applications/machines to gain practical hands-on experience in… Read More

C Language

Computer Networks

Computer Subject

Linux-Unix

Count of unique digits in a given number N

Given a number N, the task is to count the number of unique digits in the given number. Examples: Input: N = 22342 Output: 2 Explanation:The digits… Read More

frequency-counting

number-digits

number-theory

Numbers

Algorithms

DSA

Greedy

Hash

Mathematical

School Programming

Maximum number of objects that can be created as per given conditions

Given N items of type-1 and M items of type-2. An object can be created from 2 items of type-1 and 1 item of type-2… Read More

C/C++ Puzzles

DSA

Mathematical

Puzzles

School Programming

Maximum profit such that total stolen value is less than K to get bonus

Given an integer K and an array arr[] which denotes the amount that can be stolen, the task is to choose a subset of items… Read More

Permutation and Combination

Combinatorial

Competitive Programming

DSA

Greedy

Mathematical

Find initial integral solution of Linear Diophantine equation if finite solution exists

Given three integers a, b, and c representing a linear equation of the form: ax + by = c. The task is to find the… Read More

GCD-LCM

Algorithms

DSA

Mathematical

Top 8 Free Dataset Sources to Use for Data Science Projects

Did you think data is only for big companies and corporations to analyze and obtain business insights? No, data is also fun! There is nothing… Read More

data-science

GBlog

Mathematical operator symbols in LaTeX

Mathematical operator symbols – These symbols are used to write and represent various mathematical functions such as log, cos, sin etc. Though we can write… Read More

Engineering Mathematics

Displaying the coordinates of the points clicked on the image using Python-OpenCV

OpenCV helps us to control and manage different types of mouse events and gives us the flexibility to operate them. There are many types of… Read More

OpenCV

Python-OpenCV

Misc

Python

Length of longest subarray whose sum is not divisible by integer K

Given an array arr[] of size N and an integer k, our task is to find the length of longest subarray whose sum of elements… Read More

divisibility

prefix

subarray

Suffix

Arrays

C++ Programs

Competitive Programming

DSA

Mathematical

Interface in Dart

The interface in the dart provides the user with the blueprint of the class, that any class should follow if it interfaces that class i.e.… Read More

Dart-Interface

Dart

Item-to-Item Based Collaborative Filtering

Collaborative Filtering is a technique or a method to predict a user’s taste and find the items that a user might prefer on the basis… Read More

data mining

data-science

Data Science

Machine Learning

Extract IP address from file using Python

Let us see how to extract IP addresses from a file using Python. Algorithm : Import the re module for regular expression.Open the file using… Read More

Python Regex-programs

python-regex

python-utility

Python