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How to Solve Minimum Operations to Make Array Equal II Problem
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Medium#2541
LeetCode ProblemMinimum Operations to Make Array Equal II
You are given two integer arrays nums1 and nums2 of equal length n and an integer k. You can perform the following operation on nums1: nums1 is said to be equal to nums2 if for all indices i such that 0 <= i < n, nums1[i] == nums2[i]. Return the minimum number of operations required to make nums1 equal to nums2. If it is impossible to make them equal, return -1.
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Problem Breakdown
Understanding the Minimum Operations to Make Array Equal II Problem
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Problem Statement
You are given two integer arrays nums1 and nums2 of equal length n and an integer k. You can perform the following operation on nums1: nums1 is said to be equal to nums2 if for all indices i such that 0 <= i < n, nums1[i] == nums2[i]. Return the minimum number of operations required to make nums1 equal to nums2. If it is impossible to make them equal, return -1.
Examples
# Example 1
Input
nums1 = [4,3,1,4], nums2 = [1,3,7,1], k = 3
Output
2
# Example 2
Input
nums1 = [3,8,5,2], nums2 = [2,4,1,6], k = 1
Output
-1
Constraints
n == nums1.length == nums2.length
2 <= n <= 105
0 <= nums1[i], nums2[j] <= 109
0 <= k <= 105
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Solve Minimum Operations to Make Array Equal II — You are given two integer arrays nums1 and nums2 of equal length n and an intege...
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def solve(input):
# Optimal O(n) solution
return result
Time: O(n) | Space: O(n)
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