All Hard Articles
Count of leaf nodes required to be removed at each step to empty a given Binary Tree
Given a Binary Tree, the task is to remove the leaf nodes of the Binary Tree during each operation and print the count. Examples: Input:  … Read More
Binary Tree
DFS
Technical Scripter 2020
tree-traversal
Data Structures
DSA
Recursion
Technical Scripter
Tree
Count pairs (i, j) from given array such that i < j and arr[i] > K * arr[j]
Given an array arr[] of length N and an integer K, the task is to count the number of pairs (i, j) such that i… Read More
Merge Sort
partition
subarray
Arrays
Divide and Conquer
DSA
Mathematical
Sorting
Count all possible N-length vowel permutations that can be generated based on the given conditions
Given an integer N, the task is to count the number of N-length strings consisting of lowercase vowels that can be generated based the following… Read More
Permutation and Combination
Combinatorial
DSA
Dynamic Programming
Graph
Mathematical
Recursion
Strings
Difference between sum of odd and even frequent elements in an Array
Given an array arr[] of integers, the task is to find the absolute difference between the sum of all odd frequent array elements and the… Read More
frequency-counting
Technical Scripter 2020
Arrays
DSA
Hash
Mathematical
Technical Scripter
How to uncompress a “.tar.gz” file using Python ?
.tar.gz files are made by the combination of TAR packaging followed by a GNU zip (gzip) compression. These files are commonly used in Unix/Linux based… Read More
Picked
python-utility
Technical Scripter 2020
Python
Technical Scripter
Print all root to leaf paths of an N-ary tree
Given an N-Ary tree, the task is to print all root to leaf paths of the given N-ary Tree. Examples: Input:         … Read More
DFS
n-ary-tree
Tree Traversals
Backtracking
C++ Programs
DSA
Recursion
Searching
Tree
Formatting the Text in a PDF using Java
We can add nested tables to a PDF by installing the document class. Following are the steps to format the text in a PDF using… Read More
Picked
Technical Scripter 2020
Java
Java Programs
Technical Scripter
Formatting Text on a Slide in a PPT using Java
To Format text on a slide in PowerPoint Presentation using Java, use a Java Library called Apache POI. Apache POI is a project run by… Read More
Picked
Java
Java Programs
Difference between Domestic Business and International Business
Domestic Business and International Business are two types of conducting business under which an organisation aims at selling its products or services within the geographical… Read More
Commerce - Difference Between
Business Studies
Class 11
Commerce
Difference Between
Software Engineering
Positive integers up to N that are not present in given Array
Given an array a[] and an integer N, the task is to find all natural numbers from the range [1, N] that are nor present… Read More
HashSet
Arrays
Bit Magic
DSA
Hash
Mathematical
C Program to find LCM of two numbers using Recursion
Given two integers N and M, the task is to find their LCM using recursion. Examples: Input: N = 2, M = 4Output: 4Explanation: LCM… Read More
LCM
DSA
Mathematical
Misc
Recursion
Accolite Interview Experience (Off-Campus 2020)
I applied for AHC 11.0 Tech Fresher Hiring for the role of Software Engineer on Eduthrill website which is an off-campus drive for Accolite. There… Read More
Accolite
Off-Campus
Experiences
Interview Experiences
InfyTQ Certification Experience 2021
InfyTQ Certification: The certification consists of three rounds. Qualifier Round Coding Round Pre-Placement Interview Round 1(Qualifier Round): My exam slot was on Feb 23rd. I… Read More
Infosys
Infosys-InfyTQ
Infosys-interview-experience
Experienced
Experiences
Interview Experiences
Advantages and Disadvantages of Optical character Reader (OCR)
Optical character Reader (OCR) helps in differentiating presence of characters by their shapes. OCR is employed as data input device to read numeric and alphanumeric… Read More
Computer Networks
Maximum subarray sum possible after removing at most K array elements
Given an array arr[] of size N and an integer K, the task is to find the maximum subarray sum by removing at most K… Read More
Algorithms-Dynamic Programming
Kadane
subarray-sum
Algorithms
Arrays
DSA
Dynamic Programming
Largest palindrome not exceeding N which can be expressed as product of two 3-digit numbers
Given a positive integer N, the task is to find the largest palindromic number less than N and it can be expressed as the product… Read More
palindrome
Competitive Programming
DSA
Mathematical
Python
Python Programs
Strings
Difference between Program and Application
1. Program : Program, as name suggest, are simply set of instructions that are developed to work in single platform and usually written by computer… Read More
Technical Scripter 2020
Difference Between
Software Engineering
Accolite Interview Experience (On-Campus)
Accolite visited our campus for hiring. It had 4 rounds in total. Round 1: First was an MCQ round which had questions from DSA, OS,… Read More
Accolite
On-Campus
Experiences
Interview Experiences
Amazon Interview Experience for SDE-2
Round 1 (Problem Solving+Behavourial 1hour): Given a list of employee-manager pairs, count the hierarchy for an employee. https://www.techiedelight.com/find-employees-who-reports-to-manager/ Return the largest multiple of 3 from… Read More
Amazon
Experiences
Interview Experiences
Rently Interview Experience 2020-2021
Round 1(Coding Round): I attended Rently Software interview on-campus during my 6th semester for the developer’s role. The first round was the coding round hosted… Read More
Rently
Experiences
Internship
Interview Experiences
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