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repeat

Language/Type: C string return
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Write a function named repeat that accepts a string (as a char*) and a number of repetitions as parameters and returns a heap-allocated string representing the parameter string concatenated that many times. For example, the call repeat("hello", 3) returns a new string "hellohellohello". If the number of repetitions is 0 or less, an empty string ("") should be returned. (You do not need to free any memory.)

Function: Write a C function as described, not a complete program.

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