Learn and practice the data structure and algorithm with C++ Programming language
LeetCode 880. Decoded String at Index: Hey there, coding enthusiasts! Welcome back to another exciting coding session. Today’s problem is a treat—literally! We’re going to solve the “Decoded String at Index” or “LeetCode 880.” Leet Code 2612 Minimum Reverse Operations (Hard) Approach: Reverse LeetCode 880. Decoded String at Index Leet code 880, “Decoded String at … Read more
LeetCode 2233 Maximum Product After K Increments: Hey there, coding enthusiasts! Welcome back to another exciting coding session. Today’s problem is a treat—literally! We’re going to solve the “Maximum Product After K Increments” or “LeetCode 2233.” problem. Approach: LeetCode 2233 Maximum Product After K Increments Visualization LeetCode 2233 Priority Queue In this Leetcode problem, we are tasked … Read more
Leetcode 316. Remove Duplicate Letters : Hey there, coding enthusiasts! Welcome back to another exciting coding session. Today’s problem is a treat—literally! We’re going to solve the “Remove Duplicate Letters ” or “Leetcode 316.” problem. Leet Code 287 Find the Duplicate Number (Medium) Approach Stack : Leetcode 316. Remove Duplicate Letters Our Objective is, Leet code 316 … Read more
Leetcode 389. Find The Difference :Hey there, coding enthusiasts! Welcome back to another exciting coding session. Today’s problem is a treat—literally! We’re going to solve the “Find The Difference ” problem. Bruteforce Approach 1: Understand the Problem 2: Read the Input 3: Count Character Occurrences 4: Compare the Counts 5: Return the Result leet Code … Read more
Leetcode 799. Champagne Tower: Hey there, coding enthusiasts! Welcome back to another exciting coding session. Today’s problem is a treat—literally! We’re going to solve the “Champagne Tower” problem. Problem Explanation : In summary, LeetCode 799 Champagne Tower is a coding problem that involves pouring champagne into a tower of glasses and calculating how much champagne a … Read more
Leetcode 1048. Longest String Chain: Hey there, coding enthusiasts! Welcome back to another exciting coding session. Today’s problem is a treat—literally! We’re going to solve the “Longest String Chain” problem. A naive approach would be to check every word against every other word looking for predecessors, but that would lead to a TLE result. The first important realization … Read more
Is Subsequence Leetcode 392 : Hey there, coding enthusiasts! Welcome back to another exciting coding session. Today’s problem is a treat—literally! We’re going to solve the “Is Subsequence” problem. Step 1: Problem Overview : The “Is Subsequence” problem, as presented in LeetCode 392, aims to determine if one given string, denoted as ‘s,‘ is a subsequence … Read more
Minimum Operations to Reduce X to Zero (Medium) : Hey there, coding enthusiasts! Welcome back to another exciting coding session. Today’s problem is a treat—literally! We’re going to solve the “Minimum Operations to Reduce X to Zero (Medium)” problem. Problem explanation: We were given an array, and we were tasked with reducing the elements present … Read more
maximum width of binary tree :Hey there, coding enthusiasts! Welcome back to another exciting coding session. Today’s problem is a treat—literally! We’re going to solve the “Maximum Width of Binary Tree” problem. Binary Tree Level Order Traversal Method 1: Level Order Traversal using Queue Algorithm: Note : Level oder Travesal is equivalent to BFS search … Read more
Find the Duplicate Number : Finding a sneaky duplicate number in an array can be a real brain-teaser, especially when you’re told not to mess with the array or use too much memory. But fear not! We’ve got a clever trick up our sleeves to crack this code conundrum. Understanding the Puzzle:Imagine this: You’re handed … Read more
Leetcode 135 Candy (Hard) Solution:Hey there, coding enthusiasts! Welcome back to another exciting coding session. Today’s problem is a treat—literally! We’re going to solve the “Candy” problem. Imagine you have a bunch of kids lined up, each with a rating assigned to them. Your task is to distribute candies to these kids following two simple … Read more
Minimum Reverse Operations : Once upon a time, there was a magical array called “A.” This array had lots of zeros, but it had one special number: the number 1. The number 1 could move around in this array, but it had some rules to follow. Rule 1: The 1 could do a special trick … Read more
Reverse Linked List :You can solve this problem in C++, Java, Python, or JavaScript using the following algorithm to reverse a singly linked list: Leet Code : Reverse Nodes in k-Group Java, Python ,C++ JavaScript Solution Imagine you have a chain of beads, and you want to reverse their order. That’s what this code does … Read more
C++ Solution Code Explanation : Certainly! This C++ code is like a helper for making a strong password from a given text. A strong password is one that’s hard to guess, and it should follow some rules: This code helps you find out how many changes you need to make to a given text to … Read more
Counting Valid Pickup and Delivery Sequences: A Dynamic Programming Approach 1. Introduction What is the Problem? You are given n orders, each comprising both pickup and delivery services. The task is to count all the valid sequences of these orders, ensuring that the delivery for each order always occurs after its corresponding pickup. To manage … Read more
The problem “Snakes and Ladders” is a problem where the goal is to find the minimum number of dice rolls required to reach the final square in a game of snakes and ladders. The game is represented by a square grid with snakes and ladders on some of the squares. Landing on a ladder square … Read more
C++ is a powerful programming language that is widely used for creating various types of software and applications. One of the most important features of C++ is its ability to use loops, which are used to repeatedly execute a block of code. In this article, we will take a closer look at the different types … Read more
C++ Strings are a data type used to store and manipulate sequences of characters. They are an important part of the C++ standard template library (STL) and are widely used in C++ programming. In C++, strings are objects of the std::string class. This class provides a variety of methods for working with strings, including operations … Read more
In C++, a variable is a named storage location that can hold a value of a specific data type. There are several basic data types in C++, including:
In C++, input and output (I/O) operations are performed using the standard input/output library, which is defined in the <iostream> header file. The basic I/O operations in C++ are performed using the following four standard streams: Here’s an example of a simple program that uses cin and cout to read an integer from the keyboard … Read more
To get started with C++ programming, you will need a few tools and resources. Here is a basic list of what you will need: Once you have these tools and resources, you can begin writing and running C++ programs. Start with simple programs, such as a “Hello World” program, and work your way up to … Read more
C++ is a powerful, high-performance programming language that is widely used in a variety of applications, from video games to operating systems to scientific simulations. It is an extension of the C programming language, and was developed by Bjarne Stroustrup in the early 1980s. One of the key features of C++ is its object-oriented programming … Read more
In this post, we’ll look at two jump game difficulties offered on LeetCode. These are well-known coding tasks that might be difficult to complete in a single attempt.We’ll go over numerous approaches to solving both issues step by step using complexity analysis. So, let’s begin with the first. Day 3 Coding Challenge Problem 1 of … Read more
If, you are preperaing for FACEBOOK Interview or will prepare. Then according to LeetCode premium it is no.4 most asked Question by Facebook as per now. Nilesh Most important QUOTE… So Ladies n Gentlemen without any further due let’s start,What question saying is, Given two binary strings a and b, return their sum as a binary string. Explanation of Approach: Explanation … Read more
Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it can trap after raining. Input: height = [0,1,0,2,1,0,1,3,2,1,2,1] Output: 6 Explanation: The above elevation map (black section) is represented by array [0,1,0,2,1,0,1,3,2,1,2,1]. In this case, 6 units of rain water (blue section) are being trapped. CPP solution … Read more
Given the root of a binary tree, determine if it is a valid binary search tree (BST). A valid BST is defined as follows: Input: root = [2,1,3] Output: true Solution : Java DFS : Python : CPP : Inorder solution :
