need help with assignment

2. Considering the code on the right, #include answer the following questions. a. The code produces some compiler int main( ) errors. Why? char nat, input; while (input nat) b. Modify the code so that it is compiled scanf("%c", input); compute (input) correctly (indicate the modifications) What will be the value of input at the end of main (i.e. after calling the function compute)? c. void compute (char t) ra-t-'a' %d",t, ra) printf ( "code of %c return rai is d. Functions scanf and printf are not defined in the code on the right. Will this produce a compilation/linking error? Why or why not