Corrections:
/int main/{s/input();//;s/return 0/exit(0)/;};/int yywrap/s/return 0/exit(0)/;/%option/s/$/ noinput/
Corrections:
/int main/{s/input();//;s/return 0/exit(0)/;};/int yywrap/s/return 0/exit(0)/;/%option/s/$/ noinput/