Thread: logic error

This program is receive upto 25 grades and average them and display the results. It is in the required format, but there is atl least one logic error that I am not seeing. any help would be greatly appreciated.

Thanks Steve



#include <iostream.h>
#include <stdlib.h>
#include <stdio.h>

int getinput(float array[]);
void mainmenu();
float Calculateaverage ( float array[], int count);
void Displayarray( float array [], float avg, int count);


main()
{

int choice, count;
float avg;
float array[25] = {0};

do
{
mainmenu();
cin >> choice;
if ( choice == 1 )
{
count = getinput ( array );
avg= Calculateaverage( array, count);
Displayarray( array, avg, count);
}
else
break;


}while ( choice !=2 );

}

/************************************************** **********************
thepurpose of this function is to format the screen and present the user
with options.
************************************************** **********************/
void mainmenu()
{
// system ("cls");
cout<<"1-Enter Numbers"<<endl;
cout<<"2-Exit "<<endl;

}


/************************************************** ********************
The pupose of this function is to receive input from the user and pass
back the necessassary information.
************************************************** ********************/
int getinput(float array[])
{

float num;
int s;

cout<<"if you wish to exit before entering all 25 numbers enter 999"<<endl;

for (s=0;s<25;s++)
{
cin>> num;
if (num == 999)
break;
else
array[s] = num;

}

return s;
}

/************************************************** ********************
the purpose of this function is to receive pertnet information and
generate and average, and pass it back to main;
************************************************** *******************/

float Calculateaverage( float array[], int count)
{
int s;
float sum, avg;



for (s=0;s<count;s++)
{
sum += array[s];


}
cout<<"we are in calcavg"<<endl;
avg= (sum / count);
return avg;
cout<<avg<<endl;

}
/************************************************** ******************
The pupose of this function is to display the results to the screen.
************************************************** *******************/
void Displayarray( float array[], float avg, int count)
{
int s;
for (s=0;s<count;s++)
{
cout<<array[s]<<endl;
cout<<avg<<endl;


}


}