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I just finished writing selection sort and after my code was done I tried to run the program. After I give the needle as a command-line argument and input a couple of straws, I press ctr+d and nothing happens. The program doesn't continue its normal behaviour it just freezes and it doesn't let me quit it so I have to close the current terminal window and open a new one. Any ideas where does that come from?

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This has every indication of being an infinite loop somewhere after the code that takes in the data. Look in any loops that follow. There's also a chance that it's waiting for input without having written a prompt, but unlikely.

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