Java Program to find duplicate elements in array - 3 ways to compare time/space complexity Solution 1 : Our first solution is very simple. All we are doing here is to loop over an array and comparing ...

You have been given an integer array/list (ARR) of size N which contains numbers from 0 to (N - 2). Each number is present at least once. That is, if N = 5, the array/list constitutes values ranging ...

The use of the Java Streams API to find duplicates. The use of the frequency method in Java’s Collections class. Brute-force Java duplicate finder A brute-force approach to solve this problem involves ...