New to C help with rounding

Hi guys, I've been trying to round my output but I dont seem to be able to. I googled it but I dont understand float and ceiling or how to work them into my code. I did find that a roundf command should exsist but I dont have that option. I am using visual express studio so I wasnt sure if that just didnt have that command. Any help is greatly appreciated. Thank you.

Code:

---

#include
<stdio.h>

#include
<stdlib.h>

#include
<math.h>


　

// function declarations


float
schoolgrade(float x, float y, float z);


float
useroutput(float CG, float HG, float MG, float FG);


　

int
main ()

{

   
// local declarations

   
float homework = 0;

   
float midterm = 0;

   
float finalexam = 0;

   
float finalgrade = 0;

   
int student = 0;

   
int studentID = 1;

   

    printf(
"Enter total number of students \n");

    scanf(
"%d" ,&student);

   

   
while(student > 0)

    {

    printf (
"Enter 3 grades for student %d\n", studentID);

    scanf  (
"%f %f %f",&finalexam, &midterm, &homework);

       
if (finalexam <= 100 && finalexam >= 0 && midterm <= 75 && midterm >= 0 && homework  <= 120 && homework >= 0)

            {

            finalgrade = schoolgrade(finalexam, midterm, homework);

            useroutput(finalexam, midterm, homework, finalgrade);

            system (
"pause");

            student--;

            studentID++;

            }

       
else

        {

        printf(
"Incorrect value entered \n");

        }

    }


　

}


float
schoolgrade(floatx, floaty, floatz)

{


float
CG = 0;

float
HG = 0;

float
MG = 0;

float
FG = 0;


   

        FG = (
x/100) * .30;       

        MG = (
y/75) * .20;

        HG = (
z/120) * .50;

           

           

CG = (FG + MG + HG) * 100;

return
CG;


　

}


　

float
useroutput(floata, floatb, floatc, floatd)

{


    printf (
"Final exam was %f out of 100 \n", a);

    printf (
"Medterm exam was %f out of 75 \n", b);

    printf (
"Homework assignments were %f out of 120 \n ",c);

      puts (
"---------------------------------------- \n");

    printf (
"Grade is %f \n", d);


}


---

In addition to other ways to round, printf() has a built in rounder you might find easy to use:

Code:

---

#include <stdio.h>

int main(void) {
  float f=1.14;
  double d=1.155;

  printf("float f (1.14rounded to even 10ths): %.1f\n\n",f);
  printf("double d (1.155, rounded to even 100ths): %.2f\n",d);


  return 0;
}

---

It varies depending on rounding rules of course...

Code:

---

float fl = 1.5;
int rounded = floor( fl + 0.5f );

---

If you need to use ceiling, I'm sure you can figure it out from here.

@phillyflyers - please make sure you "paste as text" when you copy code.