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Write a Java program that, given a list and a target sum, returns zero-based indices of any two distinct elements whose sum is equal to
Write a Java program that, given a list and a target sum, returns zero-based indices of any two distinct elements whose sum is equal to the target sum. If there are no such elements, the function should return null.
For example, findTwoSum(new int[] { 1, 3, 5, 7, 9 }, 12) should return a single dimensional array with two elements and contain any of the following pairs of indices:
1 and 4 (3 + 9 = 12)
2 and 3 (5 + 7 = 12)
3 and 2 (7 + 5 = 12)
4 and 1 (9 + 3 = 12)
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