I need help getting started.............

[bigcjr44]

I have an assignment do tonite and I can not get it started. We are
learning about recursion. This is my assignment, and this is what I have
written, could someone please tell me what I am doing
wrong.................THANK YOU.......


ASSIGNMENT:

Demonstrate to the instructor the successful completion of each program
output. Have this sheet ready for instructor to sign. Hand to instructor
to receive credit.

Write a program that will read in an integer number
It will recursively show the conversion between the decimal number and the
Octal number (base 8).
Example program output:
Please enter the decimal number : 43
The decimal number 43 is 53 in octal

You must use a recusive function to produce the output. Using the output
stream to set output to octal is not acceptable.


CODE I HAVE WRITTEN: PLEASE HELP.................

#include <iostream.h>



using namespace std;

main()

{
int num, oct, idiv, irmdr;
{
cout<<"Please enter the decimal number : ";
cin>>num;
cout<<"The decimal number "<<num;
cout<<" is "<<oct<<" in octal";
displayOct(num);
}

void displayOct(int pnum)
{
int idiv, irmdr;
irmdr=pnum%2;
idiv=pnum/8;
if (idiv>0) displayOct(idiv);
}
return 0;
}

 

[Thomas Matthews]

I have an assignment do tonite and I can not get it started. We are
learning about recursion. This is my assignment, and this is what I have
written, could someone please tell me what I am doing
wrong.................THANK YOU.......


ASSIGNMENT:

Demonstrate to the instructor the successful completion of each program
output. Have this sheet ready for instructor to sign. Hand to instructor
to receive credit.

Write a program that will read in an integer number
It will recursively show the conversion between the decimal number and the
Octal number (base 8).
Example program output:
Please enter the decimal number : 43
The decimal number 43 is 53 in octal

You must use a recusive function to produce the output. Using the output
stream to set output to octal is not acceptable.


CODE I HAVE WRITTEN: PLEASE HELP.................

#include <iostream.h>



using namespace std;

main()

{
int num, oct, idiv, irmdr;
{

Extra brace.

cout<<"Please enter the decimal number : ";
cin>>num;
cout<<"The decimal number "<<num;
cout<<" is "<<oct<<" in octal";

The variable "oct" has not been initialized, so
it will print garbage. Bascially, you can't print
a result until you've calculated it.

displayOct(num);

Does this function return the octal value or
does it place the result into its parameter?

}

For completeness you should have:
return EXIT_SUCCESS;
at the end of main().

void displayOct(int pnum)
{
int idiv, irmdr;
irmdr=pnum%2;
idiv=pnum/8;
if (idiv>0) displayOct(idiv);
}

Does this match the opening brace of the function?

return 0;

Your function is declared as void, yet here
it returns a value. What's the deal?

}

I highly suggest you use pencil and paper to trace
this recursive code.


--
Thomas Matthews

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