How to Solve Sorting Three Groups Problem
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Sorting Three Groups
You are given an integer array nums. Each element in nums is 1, 2 or 3. In each operation, you can remove an element from nums. Return the minimum number of operations to make nums non-decreasing.
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Understanding the Sorting Three Groups Problem
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Problem Statement
You are given an integer array nums. Each element in nums is 1, 2 or 3. In each operation, you can remove an element from nums. Return the minimum number of operations to make nums non-decreasing.
Sorting Three Groups
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Examples
nums = [2,1,3,2,1]3One of the optimal solutions is to remove nums[0], nums[2] and nums[3].
nums = [1,3,2,1,3,3]2One of the optimal solutions is to remove nums[1] and nums[2].
nums = [2,2,2,2,3,3]0nums is already non-decreasing.
Constraints
1 <= nums.length <= 1001 <= nums[i] <= 3How Interview Coder Helps with Leetcode Problems
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