How to Solve Random Pick Index Problem
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Random Pick Index
Given an integer array nums with possible duplicates, randomly output the index of a given target number. You can assume that the given target number must exist in the array. Implement the Solution cl...
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Understanding the Random Pick Index Problem
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Problem Statement
Given an integer array nums with possible duplicates, randomly output the index of a given target number. You can assume that the given target number must exist in the array. Implement the Solution class: Solution(int[] nums) Initializes the object with the array nums. int pick(int target) Picks a random index i from nums where nums[i] == target. If there are multiple valid i's, then each index should have an equal probability of returning.
Random Pick Index
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Examples
Example inputExample outputConstraints
1 <= nums.length <= 2 * 104231 <= nums[i] <= 231 - 1target is an integer from nums.At most 104 calls will be made to pick.How Interview Coder Helps with Leetcode Problems
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