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ThreeSum

Language/Type: C# arrays loops algorithms interview
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Write a method named ThreeSum that accepts an array of integers and prints all combinations of three integers in the list that sum to 0. For example, if given the array [-1, 0, 1, 2, -1, -4], print the following lines of output: 

-1 0 1
-1 -1 2
0 1 -1

You may print the lines of output in any order. Do not print duplicate arrays; if the same exact subarray can be made in multiple ways, print it only once. If there are no combinations of three elements that sum to 0, print no output.

Method: Write a C# method as described, not a complete program or class.

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