Question: 1) SOLUTION 3 What's wrong with it? Explain using a specific execution example and show the problem. 2)SOLUTION 4 creates only one child. Update the

1) SOLUTION 3 What's wrong with it? Explain using a specific execution example and show the problem.

2)SOLUTION 4 creates only one child. Update the code so the parent creates the "MAX" number of children, and the parent has to wait for all children. We assume the 'MAX' has been defined, int done has been initialized to be 0, and you only need to take care of the portion of codes in between 'lock' and 'unlock' for both 'main' and 'child'. [NOTE: You are not allowed to use pthread_join.]

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