All Hard Articles

Count of Distinct Substrings occurring consecutively in a given String

Given a string str, the task is to find the number of distinct substrings that are placed consecutively in the given string. Examples: Input: str… Read More

cpp-unordered_set

frequency-counting

HashTable

Memoization

substring

Competitive Programming

DSA

Dynamic Programming

Hash

Strings

Minimum number of leaves required to be removed from a Tree to satisfy the given condition

Given a Tree consisting of N vertices, rooted at vertex 1 and an array val[] representing the values assigned to each vertex, and an array… Read More

DFS

Tree Traversals

DSA

Mathematical

Recursion

Searching

Tree

Find Landau’s function for a given number N

Given an integer N, the task is to find the Landau’s Function of the number N. In number theory, The Landau’s function finds the largest… Read More

LCM

DSA

Mathematical

Recursion

Gameskraft Interview Experience | (On Campus for FTE)

The company visited our campus Thapar Institute of Engineering and Technology on 29th July, 2020. The Pre-placement talk was conducted on the same day where… Read More

Gameskraft Technologies

Marketing

On-Campus

Experiences

Interview Experiences

Dolat Capital Quantitative Analyst / High Frequency Trading Interview Experience

Round 1: General Interview – 27th April, 2020 I knew machine learning before hand and had idea of markets or how they work. So, I… Read More

Dolat Capital

Marketing

Experiences

Interview Experiences

InfyTQ-2020 Certification Experience during COVID-19(At home)

InfyTQ 2020 is a certification exam conducted by Infosys through which the final year students who will be graduating in 2021 are recruited. I heard… Read More

Infosys

Infosys-interview-experience

Experiences

Interview Experiences

How to create multilayered text effect using HTML and CSS?

Multilayered Text Effect is one of the most used text effects in the web design world. As a designer or front-end developer one should know… Read More

Web Technologies

Web Templates

House of Quality Example in Software Quality

Prerequisite – Quality Function Deployment (QFD) House of Quality and its parts have been discussed in prerequisite article. Here, we will understand how to construct… Read More

Software Engineering

Queries to find the Minimum Weight from a Subtree of atmost D-distant Nodes from Node X

Given an N-ary Tree rooted at 1, and an array val[] consisting of weights assigned to every node, and a matrix Q[][], consisting of queries… Read More

DFS

Merge Sort

Trees

Advanced Data Structure

Backtracking

Competitive Programming

Divide and Conquer

DSA

Greedy

Recursion

Tree

Applications of NLP

Among the thousands and thousands of species in this world, solely homo sapiens are successful in spoken language. From cave drawings to internet communication, we… Read More

Natural-language-processing

AI-ML-DS

Machine Learning

NLP

Rearrange an Array such that Sum of same-indexed subsets differ from their Sum in the original Array

Given an array A[] consisting of N distinct integers, the task is to rearrange the given array such that the sum of every same-indexed non-empty… Read More

array-rearrange

subset

Arrays

DSA

Greedy

Mathematical

Pattern Searching

Searching

Sorting

Check if a String contains Anagrams of length K which does not contain the character X

Given a string S, the task is to check if S contains a pair of substrings of length K which are anagrams of each other… Read More

anagram

frequency-counting

Java-HashMap

substring

Competitive Programming

DSA

Hash

Searching

Strings

Count distinct elements after adding each element of First Array with Second Array

Given two arrays arr1[] and arr2[]. We can generate another array arr3[] by adding each element of the array arr1[] to each element arr2[]. The… Read More

Arrays

Divide and Conquer

DSA

Greedy

Mathematical

Maximize number of elements from Array with sum at most K

Given an array A[] of N integers and an integer K, the task is to select the maximum number of elements from the array whose… Read More

Algorithms-Greedy Algorithms

subsequence

Arrays

DSA

Greedy

Mathematical

Misc

Find the first and last M digits from K-th power of N

Given a two integers N and K, the task is to find the first M and last M digits of the number NK .Examples: Input:… Read More

maths-power

Modular Arithmetic

number-digits

DSA

Mathematical

Spring Boot | How to consume JSON messages using Apache Kafka

Apache Kafka is a stream processing system that lets you send messages between processes, applications, and servers. In this article, we will see how to… Read More

Apache

java-advanced

Java-Spring

JSON

Java

Convert Snake Case string to Camel Case in Java

Given a string in Snake Case, the task is to write a Java program to convert the given string from snake case to camel case… Read More

Java-String-Programs

strings

DSA

Java Programs

Strings

Python – Slice till K dictionary value lists

Given dictionary with value as lists, slice each list till K. Input : test_dict = {“Gfg” : [1, 6, 3, 5, 7], “Best” : [5,… Read More

Python dictionary-programs

Python list-programs

Python

Python Programs

Python – Replace String by Kth Dictionary value

Given a list of Strings, replace the value mapped with the Kth value of mapped list. Input : test_list = [“Gfg”, “is”, “Best”], subs_dict =… Read More

Python dictionary-programs

Python list-programs

Python string-programs

Python

Python Programs

HTML align Attribute

HTML align Attribute in HTML is used to specify the alignment of the text content of The Element. This attribute is used in all elements.… Read More

HTML-Attributes

HTML

Web Technologies