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You are given two integer arrays nums1 and nums2.From nums1 two elements have been removed, and all other elements have been increased (or decreased in the case of negative) by an integer, represented by the variable x.As a result, nums1 becomes equal to nums2. Two arrays are considered equal when they contain the same integers with the same frequencies.Return the minimum possible integer x that achieves this equivalence. Example 1:Input: nums1 = [4,20,16,12,8], nums2 = [14,18,10]Output: -2Explanation:After removing elements at indices [0,4] and adding -2, nums1 becomes [18,14,10].Example 2:Input: nums1 = [3,5,5,3], nums2 = [7,7]Output: 2Explanation:After removing elements at indices [0,3] and adding 2, nums1 becomes [7,7]. Constraints:3 <= nums1.length <= 200nums2.length == nums1.length - 20 <= nums1[i], nums2[i] <= 1000The test cases are generated in a way that there is an integer x such that nums1 can become equal to nums2 by removing two elements and adding x to each element of nums1.

Question

You are given two integer arrays nums1 and nums2.From nums1 two elements have been removed, and all other elements have been increased (or decreased in the case of negative) by an integer, represented by the variable x.As a result, nums1 becomes equal to nums2. Two arrays are considered equal when they contain the same integers with the same frequencies.Return the minimum possible integer x that achieves this equivalence. Example 1:Input: nums1 = [4,20,16,12,8], nums2 = [14,18,10]Output: -2Explanation:After removing elements at indices [0,4] and adding -2, nums1 becomes [18,14,10].Example 2:Input: nums1 = [3,5,5,3], nums2 = [7,7]Output: 2Explanation:After removing elements at indices [0,3] and adding 2, nums1 becomes [7,7]. Constraints:3 <= nums1.length <= 200nums2.length == nums1.length - 20 <= nums1[i], nums2[i] <= 1000The test cases are generated in a way that there is an integer x such that nums1 can become equal to nums2 by removing two elements and adding x to each element of nums1.

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Solution

To solve this problem, you can follow these steps:

  1. First, sort both arrays in ascending order. This will make it easier to compare the elements of the two arrays.

  2. Then, iterate over the elements of the first array. For each element, calculate the difference between it and the corresponding element in the second array. This difference is a candidate for the value of x.

  3. Keep track of the minimum difference you have found so far. This will be the minimum possible value of x.

  4. However, you also need to check if removing two elements from the first array can make it equal to the second array. To do this, you can iterate over all pairs of elements in the first array, remove them, and then check if the resulting array is equal to the second array. If it is, update the minimum value of x accordingly.

  5. Finally, return the minimum value of x.

Here is a Python code snippet that implements this algorithm:

def min_x(nums1, nums2):
    nums1.sort()
    nums2.sort()
    min_x = float('inf')
    for i in range(len(nums1)):
        x = nums2[i] - nums1[i]
        temp = nums1[:i] + nums1[i+2:]
        temp = [num + x for num in temp]
        temp.sort()
        if temp == nums2:
            min_x = min(min_x, x)
    return min_x

This function works by first sorting the input arrays, then iterating over the elements of the first array and calculating the difference between each element and the corresponding element in the second array. It keeps track of the minimum difference found so far, and checks if removing two elements from the first array can make it equal to the second array. If it can, it updates the minimum difference accordingly. Finally, it returns the minimum difference.

This problem has been solved

Similar Questions

You are given two arrays of equal length, nums1 and nums2.Each element in nums1 has been increased (or decreased in the case of negative) by an integer, represented by the variable x.As a result, nums1 becomes equal to nums2. Two arrays are considered equal when they contain the same integers with the same frequencies.Return the integer x. Example 1:Input: nums1 = [2,6,4], nums2 = [9,7,5]Output: 3Explanation:The integer added to each element of nums1 is 3.Example 2:Input: nums1 = [10], nums2 = [5]Output: -5Explanation:The integer added to each element of nums1 is -5.Example 3:Input: nums1 = [1,1,1,1], nums2 = [1,1,1,1]Output: 0Explanation:The integer added to each element of nums1 is 0. Constraints:1 <= nums1.length == nums2.length <= 1000 <= nums1[i], nums2[i] <= 1000The test cases are generated in a way that there is an integer x such that nums1 can become equal to nums2 by adding x to each element of nums1.

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