Thread: Modulus Program

Write a C program that reads in two numbers, calculates the modulus of the two and prints out the result. You must use at least three functions (plus main) in your program, however, you must not use return values.

This is the question I have to answer and this is my code so far

Code:

#include <stdio.h>
#include <math.h>
int main()
{
  float num1, num2, rem;

  printf("First Number?\n");
  scanf("%f%",&num1);
  printf("Second Number?\n");
  scanf("%f",&num2);

  rem = fmod(num1,num2);

  printf("%.2f divided by %.2f is remainder %.2f\n", num1, num2, rem);


  getchar();
  return 0;
}

But I have a few problems with it at the moment...

1. I start the program and the message 'First Number?' comes up and I enter a number (lets say 10) but then message 'Second Number?' never appears! If you continue to enter a number (lets say 8), it ends up looking like this

First Number?
10
8
Second Number?
10 divided by 8 is remainder 2


2. At the moment, the program isn't in modular form but how can I use 3 functions for such a small program?

Thanks for any help!

Code:

scanf("%f%",&num1);

Need that %?

And any particular statement can be made a function, if necessary....

dude there is something operator called in c++ which gives u the remainder

%

int a = 10
int b = 8;

int c = a % b;

check this out

Code:

#include <stdio.h>

int main() {
  int a = 10;
  int b = 8;
  int c = a % b;
  printf("a == %d || b == %d || c == %d\n", a, b, c);
  return 0;
}

@ Tabstop - lol thanks, I probably would have never noticed that

@ Rocky - I've seen a lot of people using that actually but it just confuses me :/



I will work on my code a little longer and try turn it into 3 functions

what is the confusion dude just googlie the modulo operator C++

as like / divide operator it returns the quotient as % this operator returns the remainder

would that mean I could just use

"rem = num1 % num2;"

instead?

yes brother and before posting this i think u would have been done it there

why u r not tryin this there on ur machine

u will get to knw

lol I did try it on my compiler but it came up as

Invalid Operands to Binary %

what u r using MS VC++ or gcc ??? and can u just run the code which i typed above

Code:

#include <stdio.h>

int main() {
  int a = 10;
  int b = 8;
  int c = a % b;
  printf("a == %d || b == %d || c == %d\n", a, b, c);
  return 0;
}

Just so you know, the modulus operator does not work with floating point. The op had it right in the beginning. You're supposed to use fmod for floating point.

And aren't you using three functions as it is, OP? printf, scanf, and fmod. That's more than enough when you include main. Otherwise, you can always further divide the program into steps. Think of what you need to do: read a number, calculate, print the answer....

Originally Posted by whiteflags

eye tink he jus want anzers as fast as possibly

Nice, lol