Unique Strings with Odd and Even Swapping Allowed
Introduction: In string manipulation, discovering unique strings amidst a sea of possibilities can be both challenging and rewarding. In this tutorial, we embark on a journey to unravel the secrets…
Letter Combinations of a phone number
Given a string containing digits from 2-9 inclusive, return all possible letter combinations that the number could represent. Return the answer in any order. A mapping of digits to letters…
Counting Odd and Even Occurrences in an Array
Introduction: In programming, it’s common to encounter scenarios where you need to count the number of elements occurring an odd number of times and the number of elements occurring an…
How to Check if a Number is Prime in Python
Introduction:Prime numbers are natural numbers greater than 1 that have no positive divisors other than 1 and themselves. Determining whether a given number is prime or not is a common…
Deleting Nodes with Greater Values on the Right Side in a Linked List
Introduction:In programming, efficiently managing linked lists is a crucial skill. Deleting nodes with greater values on the right side is a common problem encountered while working with linked lists. In…
Finding Maximum Difference Type in an Array
Introduction:Discovering the maximum difference between elements in a Python array is a crucial programming task, often demanding efficient algorithms for optimal results. In this comprehensive tutorial, we’ll delve into Python…
Sorting Unique Integers Without Built-in Functions in Python
Introduction:Sorting a list of unique integers is a common task in programming, often requiring efficient algorithms to achieve the desired result. In this tutorial, we’ll explore how to implement a…
Character Frequency Counting in Strings
Introduction: Character frequency counting is a common task in string manipulation, often encountered in various programming scenarios. In this tutorial, we’ll explore an efficient approach to calculate the frequency of…
String Operations: Efficiently Reverse Substrings
Introduction: String manipulation is a fundamental aspect of programming, and understanding efficient techniques for performing string operations is essential. In this tutorial, we’ll explore an efficient approach to reverse substrings…
Square Root Integral in Python
Given a number N, find its square root. You need to find and print only the integral part of square root of N. For eg. if number given is 18,…
Word Patterns | Interview Question at Mastercard
Introduction: In the world of string manipulation, unraveling patterns and matching sequences play a pivotal role in various applications. In this tutorial, we’ll embark on a journey to decode word…
Level Order Traversal Technique for Binary Trees
Introduction: In binary trees, exploring their structure and nodes in a systematic manner is crucial for various operations and analyses. One such traversal method is the level order traversal, which…
Minimum Steps to Reduce a Number to 1 Using Dynamic Programming
Problem Statement: Given a positive integer ‘N’, our objective is to compute and return the minimum number of steps needed to reduce ‘N’ to 1. We have three permissible operations:…
Maximum Subarray Sum Challenge with Kadane’s Algorithm
Introduction: In the realm of algorithmic problem-solving, the quest for the maximum sum of any contiguous subarray within a given array is a classic challenge. In this tutorial, we’ll embark…
Finding the Longest Palindromic Subsequence
Introduction: Dynamic Programming (DP) is a powerful algorithmic technique used to solve a variety of optimization problems. One classic problem where DP shines is in finding the longest palindromic subsequence…
Check If The String Is A Palindrome
You are given a string ‘S’. Your task is to check whether the string is palindrome or not. For checking palindrome, consider alphabets and numbers only and ignore the symbols…
Designer PDF Viewer | Hackerrank
When a contiguous block of text is selected in a PDF viewer, the selection is highlighted with a blue rectangle. In this PDF viewer, each word is highlighted independently. For…
Game with String | Problem of the day
Given a string s of lowercase alphabets and a number k, the task is to print the minimum value of the string after removal of k characters. The value of…
Hackerrank | Longest Subarray with Absolute Difference Constraint
Problem Overview Given an array of integers, our task is to find the longest subarray such that the absolute difference between any two elements is less than or equal to…
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Hackerrank | Birthday Candles Problem
You are in charge of the cake for a child’s birthday. You have decided the cake will have one candle for each year of their total age. They will only…