How to Solve Global and Local Inversions Problem
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Global and Local Inversions
You are given an integer array nums of length n which represents a permutation of all the integers in the range [0, n - 1]. The number of global inversions is the number of the different pairs (i, j) ...
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Understanding the Global and Local Inversions Problem
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Problem Statement
You are given an integer array nums of length n which represents a permutation of all the integers in the range [0, n - 1]. The number of global inversions is the number of the different pairs (i, j) where: 0 <= i < j < n nums[i] > nums[j] The number of local inversions is the number of indices i where: 0 <= i < n - 1 nums[i] > nums[i + 1] Return true if the number of global inversions is equal to the number of local inversions.
Global and Local Inversions
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Examples
nums = [1,0,2]trueThere is 1 global inversion and 1 local inversion.
nums = [1,2,0]falseThere are 2 global inversions and 1 local inversion.
Constraints
n == nums.length1 <= n <= 1050 <= nums[i] < nAll the integers of nums are unique.nums is a permutation of all the numbers in the range [0, n - 1].How Interview Coder Helps with Leetcode Problems
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