3250. Find the Count of Monotonic Pairs I

LeetCodeArrayMathDynamic ProgrammingCombinatoricsPrefix SumOpen on judge ↗

You are given an array of positive integers nums of length n. We call a pair of non-negative integer arrays (arr1, arr2) monotonic if: - The lengths of both arrays are n. - arr1 is monotonically non-decreasing, in other words, arr1[0] <= arr1[1] <= ... <= arr1[n - 1]. - arr2 is monotonically non-increasing, in other words, arr2[0] >= arr2[1] >= ... >= arr2[n - 1]. - arr1[i] + arr2[i] == nums[

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solution.cppC++17

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