Random Winners
You have four identical prizes to give away and a pool of 25 finalists. The finalists are assigned numbers from 1 to 25. Write a program to randomly select the numbers of 4 finalists to receive a prize. Make sure not to pick the same number twice. For example, picking finalists 3, 15, 22, and 14 would be valid but picking 3, 3, 31, and 17 would be invalid because finalist number 3 is listed twice and 31 is not a valid finalist number.