Java Algorithms: First Missing Positive (LeetCode)

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Task description: Given an unsorted integer array, return the smallest missing positive integer. Solution: Brute force approach: Sort through all positive numbers from 1 until we find the first missing one. Problem: For each number we re-pass through the entire array, let’s try to reduce the number of iterations by allocating additional memory.

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Java Algorithms: First Missing Positive (LeetCode)
Source: Trends Pinoy