(Solved) : 1 Alter Program Correct Output Sent Standard Output Stream Stdout Error Help Messages Sent Q26701371 . . . .

1) Alter the program such that only the correct outputis sent to the standard output stream (stdout), while error andhelp messages are sent to the standard error stream (stderr).(Hint: use fprintf.)

2) Implement an optional command-line switch‘-fFILENAME’ that sends program output to a file named FILENAME(i.e., filename specified as a command line argument).

3) Add support for matching arbitrary numbers of words,not just 5. (Hint: use malloc, and don’t worry too much aboutmemory efficiency).

4) Safeguard the program from buffer overflow attacks.(Hint: ‘gets’ is BAD. Use fgets instead, which specifies themaximum number of characters to be read in.)

5) Allow multiple words to be