How to Solve Maximize Y‑ Sum by Picking a Triplet of Distinct X‑ Values Problem
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Maximize Y‑Sum by Picking a Triplet of Distinct X‑Values
You are given two integer arrays x and y, each of length n. You must choose three distinct indices i, j, and k such that: x[i] != x[j] x[j] != x[k] x[k] != x[i] Your goal is to maximize the value of y...
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Understanding the Maximize Y‑ Sum by Picking a Triplet of Distinct X‑ Values Problem
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Problem Statement
You are given two integer arrays x and y, each of length n. You must choose three distinct indices i, j, and k such that: x[i] != x[j] x[j] != x[k] x[k] != x[i] Your goal is to maximize the value of y[i] + y[j] + y[k] under these conditions. Return the maximum possible sum that can be obtained by choosing such a triplet of indices. If no such triplet exists, return -1.
Maximize Y‑Sum by Picking a Triplet of Distinct X‑Values
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Examples
x = [1,2,1,3,2], y = [5,3,4,6,2]14Choose i = 0 (x[i] = 1, y[i] = 5), j = 1 (x[j] = 2, y[j] = 3), k = 3 (x[k] = 3, y[k] = 6). All three values chosen from x are distinct. 5 + 3 + 6 = 14 is the maximum we can obtain. Hence, the output is 14.
x = [1,2,1,2], y = [4,5,6,7]-1There are only two distinct values in x. Hence, the output is -1.
Constraints
n == x.length == y.length3 <= n <= 1051 <= x[i], y[i] <= 106How Interview Coder Helps with Leetcode Problems
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