R4R C C ExamplesPrint Average of n Number

Learn C with example

Pint average of n number.

In this example we will learn how to calculate average of n number. You have insert a number from keyboard  then this example will sum all the number from 1 to n then calculate average.

Here we are using  two header files and five predefine methods. In for loop we sum from 1 to n and then finally find average. In this we are using "\t"  for 5 white space.

In this we first declare two integer variable(i,n) ,one float variable(avg) and initialize an integer variable(sum=0).Then to clear the screen we call clrscr()  function. After that pint a message .To insert value from keyboard  we are using scanf() function. To calculate sum start for loop from 1 to n.
In first iteration calculate sum(0)+i(i=1) and assign into sum=sum+1.Then In first iteration add sum=sum(sum=1)+i(i=2) similarly  up to n. After completing for loop calculate average (avg=(float)sum/n).Here we are using (float)sum/n) to calculate float value of average. Finally print average as output.  

/* print average of n number. */
#include<stdio.h>
#include<conio.h>
void main()
{
int i,sum=0,n;
float avg;
clrscr();
printf("Enter a to which you have to 
calculate the arg:\t");
scanf("%d",&n);
for(i=1;i<=n;i++)
sum=sum+i;
avg=(float)sum/n;
printf("The average:\t%f",avg);
getch();
}

Output Of Example