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Help George understand Lily's homework by finding the minimum number of swaps to make an array beautiful. Learn the definition of a beautiful array and see an example and solution code.
Learn how to solve Lily's Homework, a problem from HackerRank Problem Solving series, in C++, Python and Java. See the code, explanation and input/output examples for each language.
Jul 31, 2024 · Posted on 31 July 2024By YASH PAL1 Commenton HackerRank Lily’s Homework problem solution. In this HackerRank Lily’s Homework problem solutionwe have given the array arr, determine and return the minimum number of swaps that should be performed in order to make the array beautiful. Problem solution in Python.
Sep 21, 2018 · Learn how to solve a coding challenge on HackerRank that involves swapping elements of an array to make it beautiful. See the problem definition, complexity analysis, and Python code solution.
Function DescriptionComplete the lilysHomework function in the editor below. lilysHomework has the following parameter(s):int arr[n]: an integer arrayReturnsint: the minimum number of swaps requiredInput FormatThe first line contains a single integer, n, the number of elements in arr. The second line contains n space-separated integers, arr[i].
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See the original problem on HackerRank. Solutions. The sum is minimal when the array is sorted. Both descending and ascending order will yield the minimum sum of the absolute difference of adjacent elements. We need to count the number of swaps in both cases. To find the number of swaps we have to find the number of cycles in the array. For ...