Minimum swaps hackerrank solution in java Return the largest possible value of num after any number of swaps. Note that another working solution consists in simulating the selection sort by finding the minimum element on every iteration and performing the proper swap. By the end of the scan, the accumulated count gives the minimum adjacent swaps required. This video is about Minimum Swaps 2 problem from HackerRank under Interview Preparation Kit- Array. You need to find the minimum number of swaps HackerRank solution for minimum-swaps-2 in swift. Suppose this count is x, now we need to find the subarray of length x with maximum number of 1’s. Given an unordered array of integers, this challenge is to find the minimum number of swaps needed to sort the array in ascending order Jul 31, 2024 · In this HackerRank Minimum swaps 2 interview preparation kit problem solution You are given an unordered array consisting of consecutive integers [1, 2, 3, …, n] without any duplicates. 83K subscribers Subscribe This Repository contains all the problems that i have solved on HackerRank. My public HackerRank profile here. This solution works on all test cases, even though it’s quadratic. Therefore, swap 1 with the element at index 0, which is 4. Jul 7, 2020 · You are given an unordered array consisting of consecutive integers [1, 2, 3, …, n] without any duplicates. Apr 9, 2020 · Minimum Swaps 2 | HackerRank Solution | Algorithm Explanation by alGOds alGOds 4. Contribute to des2154022/HackerRank-2 development by creating an account on GitHub. In this video I have explained the code and process of solving the problemSource code: https://contentforgeeks. Coding Challenges and MoreOver the course of the next few (actually many) days, I will be posting the solutions to previous Hacker Rank challenges. Can you solve this real interview question? Minimum Number of Moves to Make Palindrome - You are given a string s consisting only of lowercase English letters. Jun 7, 2017 · The permutation P for example has 2 cycles: (2,1) and (4,3). The “Minimum Swaps 2” task You are given an unordered array consisting of consecutive integers [1, 2, 3, …, n] without any duplicates. HackerRank | Max Array Sum | Solution Explained (Java + Whiteboard ) Xavier Elon • 5. Today, we're discussing a simple sorting algorithm called Bubble Sort. Check whether it is possible to make a My solutions to HackerRank problems. For example, given the array arr = [7,1,3,2,4,5,6] we perform the Java 8 - used stream to create a set if index that are sorted. - HackerRank_Solutions/Minimum Swaps 2. After 1 is positioned correctly, check the next number, i. html Jul 19, 2020 · Minimum Swaps 2 (Hackerrank, javascript, arrays, sorting) by Alexandr Zelenin Let’s solve Hackerrank’s “Minimum Swaps 2” in Javascript by Stoil Stoychev Aug 27, 2020 · This challenge asks that you find the minimum number of swaps to sort an array of jumbled consecutive digits to ascending order. 2. In the general case, you should simply subtract the number of cycles from the permutation length, and you get the minimum number of required swaps. You are given an unordered array consisting of consecutive integers [1, 2, 3, , n] without any duplicates. Contribute to julietrajam/HackerRank-1 development by creating an account on GitHub. The graph will now contain . minimumSwaps has the following parameter (s): int arr [n]: an unordered array of integers Returns int: the minimum number of swaps to sort the array Jun 13, 2023 · 1 is not in correct position (correct position is index 0). hackerrank / minimum-swaps-2 / Solution. Return the minimum number of moves needed to make s a palindrome. hackerrank Minimum Swaps 2. If it is not possible return -1. e. 4 [1, 2, 3, 4, 5, 7, 6] swap (5,6) 5 [1, 2, 3, 4, 5, 6, 7] It took swaps to sort the array. com/challenges If there's a specific problem or a concept you want me to make a video on, LET ME KNOW IN THE COMMENTS BELOW. The majority of the solutions are in Python 2. Input 2: a = [1, 5, 4, 3, 2] Output 2: 2 Explanation 2: We swap 5 with 2 and 4 with 3 requiring a minimum of 2 swaps. Hackerrank Problem, Minimum Swap 2 python solution is given in this video. After going through the solutions, you will be clearly understand the concepts and solutions very easily. java Blame Blame Sep 2, 2025 · The number of swaps needed is exactly equal to the current imbalance, so we add it to our total swap count and decrease the imbalance by 1. Problem: https://www. com/Kuldip-G/466a9b60c6a236ee06298d7296d115ef This Repository contains the solution of various HackerRank problems of various sections like java,python,Interview Preparation kit and many more - Akash-Kunwar Jun 25, 2020 · HackerRank | Array Manipulation | Solution Explained (Java + Whiteboard) Xavier Elon 4. If an element is not in its correct position, it indicates that it is a part of a cycle with one or more other elements that also need to be moved. What is the expected number of swaps you will make? This repository is a collection of Java solutions for HackerRank challenges. Minimum Swaps 2 Problem You are given an unordered array consisting of consecutive integers [1, 2, 3, , n] without any duplicates. You are allowed to swap any two Hello coders, in this post you will find each and every solution of HackerRank Problems in Java Language. com/hackerrank-minimum-swaps-2-solution. HackerRank Solutions Jul 3, 2019 · Given a binary array, find the number of minimum adjacent swaps needed to group 1's and 0's. com/2021/09/Hackerrank%20minimum%20sw Solution at: Hello, my name is Brian Dyck, I am a full-time software engineer and a Computer Science graduate walking through HackerRank problems for new and old programmers alike. So I’d like to solve it using … Hackerrank Question - Minimum Swaps 2 - https://www. Function Description Complete the function minimumSwaps in the editor below. We can swap any character, they need not be adjacent. Length of string can be 1 to 10^5 Here is my code: Minimum Swaps Required to Sort an Arraycode - : https://gist. In one move, you can select any two adjacent characters of s and swap them. For example, given the array we perform the following steps: Oct 22, 2025 · [Naive Approach] - Using Nested loops - O (n^2) Time and O (n) Space A simple solution is to first count total number of 1’s in the array. hackerrank. Dec 11, 2022 · Solve HackerRank Minimum Loss 1 Solve HackerRank Minimum Loss 1 in Java This should be a simple problem, but finding a correct solution online seems challenging. My solutions to HackerRank problems. github. Feb 23, 2023 · Given a string S, the task is to find out the minimum no of adjacent swaps required to make string s palindrome. Nov 18, 2021 · 2 Explanation 1: We swap 4 with 1, and 2 with 3 requiring a minimum of 2 swaps. The string consists of exactly n / 2 opening brackets ' [' and n / 2 closing brackets ']'. No need for complex cycle algorithms master Solution. Today I go over a medium HackerRank problem based on arrays. Problem:We have an unordered array consisting of co My solutions to HackerRank problems. So answer is 1. GitHub Gist: instantly share code, notes, and snippets. java Cannot retrieve latest commit at this time. The code is provided in Java, C, C++, and JavaScript (Node. Jul 17, 2023 · Below is the code solution to the HackerRank Interview Preparation Kit Minimum Swaps 2 problem, using the same logic as explained above. 4K subscribers Subscribed Jun 13, 2023 · HackerRank New Year Chaos Problem Solution in C, C++, java, python, javascript, C Sharp Programming Language with particle program code Note : This code passed all testcases on hackerrank rank & gfg but failed on coding ninja idk what's wrong there Working Code : Another Approach (Ideally ) : This can be easily done by visualizing the problem as a graph. You randomly swap two characters in a string until the string becomes a palindrome. Problem Title:- HackerRank Minimum Swaps 2 - JAV Welcome to the HackerRank_Java repository! 🚀 This repository contains solutions to various HackerRank problems implemented in Java. We will have n nodes and an edge directed from node i to node j if the element at i’th index must be present at j’th index in the sorted array. The codes are written with simplicity and clarity in mind, making them easy to understand for beginners and helpful for anyone looking to solve these problems efficiently. Mar 5, 2020 · Minimum Swaps 2 Hackerrank Solution In this post, you will learn how to solve Hackerrank's Minimum Swaps 2 Problem and its solution in Java. Can you solve this real interview question? Minimum Number of Swaps to Make the String Balanced - You are given a 0-indexed string s of even length n. It’s New Year’s Day and everyone’s in line for the Wonderland rollercoaster ride! There are a number of people queued up, and each … Nov 14, 2019 · HackerRank Minimum Swaps 2 Problem [Solved] C# CSharp HackerRank hackerrank solution Minimum Swaps 2 problem An efficient algorithm to find the minimum number of swaps required to sort the array in ascending order. java at master · Adarsh9616/HackerRank_Solutions Hello, my name is Brian Dyck, I am a full-time software engineer and a Computer Science graduate walking through HackerRank problems for new and old programm Dec 15, 2019 · But recently solving Minimum Swaps 2 on Hackerrank made me reconsider. Contribute to danadrianmirea/HackerRank_solutions development by creating an account on GitHub. com/challenges/minimum-swa Return the minimum number of swaps to sort the given array. public static int lilysHomework(List<Integer> arr) { // The key to solving this problem is to create a sorted indexs // and count the number of the swaps it takes to get things // in the corrector order. Contribute to enfaith1/hackerrank-solutions development by creating an account on GitHub. Minimum_number_of_swaps_required_to_sort_an_array. Check out the Tutorial tab for learning materials and an instructional video! Jul 31, 2024 · Hackerrank minimum swaps 2 problem solution in python, java, c++ c and javascript programming with practical program code example explanation 2. Each solution is provided with a detailed explanation and is intended to help you improve your Java programming skills. Below is a Java version solution. Oct 30, 2019 · You are given an unordered array consisting of consecutive integers [1, 2, 3, , n] without any duplicates. Note that the input will be generated such that s can always be converted to a palindrome Jan 5, 2024 · For example )()(())(, find the minimum swaps needed to make it balanced. You may swap any two digits of num that have the same parity (i. Jun 1, 2020 · A blog about Hackerrank solutions in Java and scalable systems design concepts to help in interview preparation. Some are in C++, Rust and GoLang. As the problem is under Medium Section so it explanation is provided. So for )()(())( we can swap first and last character to make it balanced string (()(())) so number of swaps is 1. 2K views • 5 years ago Can you solve this real interview question? Largest Number After Digit Swaps by Parity - You are given a positive integer num. This question is from the arrays section. Approach 1 (Graph-Based Approach) This problem can be solved quite easily if we change our perspective and try to model this problem into a graph Mar 20, 2023 · Day 20 Sorting Hackerrank Solution in C++ and Java. Contribute to raviseta/minimum-swaps-2 development by creating an account on GitHub. You are allowed to swap any two elements. Indeed, the selection sort is the sorting algorithm that ensures the minimum number of swaps. Contribute to ahmetgulusa/HackerRank-2 development by creating an account on GitHub. both odd digits or both even digits). This follows from the observation that in order to "fix" a cycle of N elements, N-1 swaps are enough. java HackerRank / Interview Preparation Kit / Arrays / Minimum Swaps 2 / Solution. You need to find the minimum number of swaps required to sort the array in ascending order. Examples: Input: aabcb Output: 3 Explanation: After 1st swap: abacb After 2nd swap: abcab After 3rd swap: abcba Input: adbcdbad Output: -1 Approach The following are detailed steps to solve this problem. So far my code passes most of the tests, however there are four that Sep 14, 2021 · Minimum Swaps 2 | HackerRank Solution Minimum Swaps 2 HackerRank solution: Looking for Minimum Swaps 2 solution for Hackerrank problem? Get solution with source code and detailed explainer video You are given an unordered array consisting of consecutive integers ϵ ϵ [1, 2, 3, …, n] without any duplicates. Therefore two swaps are enough. Jul 26, 2020 · You are allowed to swap any two elements. Example 1: Input: num = 1234 Output: 3412 Explanation: Swap the digit 3 with the digit 1, this May 26, 2020 · HackerRank New Year Chaos Problem Explained with Solution. blogspot. Example: Input : 0,1,0,1 (array with 0 based index) Swaps needed : 0,1,0,1 -> 0,0,1,1 (1 swap from Given a string containing three types of brackets, determine if it is balanced. This is one of the HackerRank Interview Preparation Kit questions. 4. js). Please comment below if you have any questions!Running Time: O(N)Space Complexity: O(1)Social me Here is Mimimum Swaps 2 solution in python and java - https://programmingoneonone. Link Minimum Swaps 2 Complexity: time complexity is O(N) space complexity is O(1) Execution: This solution runs in O (N) since it will visit every element at most 2 times. Jul 23, 2025 · This approach uses cycle detection method to find out the minimum number of swaps required to sort the array. And minimum swaps required will be the number of 0’s in this subarray of length x. The page is a good start for people to solve these problems as the time constraints are rather forgiving. The proble Return the minimum number of swaps to sort the given array. If it is not possible, then return -1. We can use hash map for the lookup of current position of a number. eapit aykiq akkwfi brrolx vvfrhi uuo hfvmg uzlyw efsly xcpjqgu hjglwio ihhj ajgwak ezg hbjs