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Dsa Hashing Warm-up

Find All Duplicates

Given a list of numbers (where each number can only appear once or twice), find all the numbers that appear twice and return them in a list. Input Format: - A single line containing space-separated integers. Output Format: - Print the numbers that appear twice as a space-separated string. Example: Input: "4 3 2 7 8 2 3 1" Output: "3 2"

Key concepts

hashingarrays

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