You are given an array A, of N elements. Find minimum index based distance between two elements of the array, x and y.
Example 1:
Input:
N = 4
A[] = {1,2,3,2}
x = 1, y = 2
Output: 1
Explanation: x = 1 and y = 2. There are
two distances between x and y, which are
1 and 3 out of which the least is 1.
Example 2:
Input:
N = 7
A[] = {86,39,90,67,84,66,62}
x = 42, y = 12
Output: -1
Explanation: x = 42 and y = 12. We return
-1 as x and y don't exist in the array.
Your Task: Complete the function minDist() which takes the array, n, x and y as input parameters and returns the minimum distance between x and y in the array. If no such distance is possible then return -1.
Expected Time Complexity: O(N) Expected Auxiliary Space: O(1)
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Avoid using static/global variables in coding problems as your code is tested
against multiple test cases and these tend to retain their previous values.
Passing the Sample/Custom Test cases in coding problems does not guarantee the
correctness of code. On submission, your code is tested against multiple test cases
consisting of all possible corner cases and stress constraints.
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