1 Question

**Seniorija** · 11-17-2012

Hi dears;

i have written a code for c++ . this code recieve n and then recieve n student grades ,,, and finally it finds the average of grades !

Code:

#include <iostream>
#include <conio.h>
using namespace std;
int main(){
    int n,count=0,sum=0;
    float grade,avg;
    cout << "How many students grade do you want to input ? \n" <<endl;
    cin >> n;
    cout << endl;
    
    cout << "Please enter the student grade : \n"<<endl;
    while (count<n){
    cin >> grade;
    cout << endl;
    sum += grade;
    count++;
}
  avg = (float)(sum)/(float)(n);

    cout << avg;
    getch();
    return 0;
}

but now i want to calculate the average of the "first (n-1) top grades ! "

now my idea : finiding the min grade between inputed grades and sustract it from sum ... but i dont exactly know how can i find it between inputed grades !!! can u help me ?? tnx;

**std10093** · 11-17-2012

Good idea

I will make you an example and from this you will be inspired to modify your code ( you see I am fair, I am not stealing you all the fun

)

Code:

#include <iostream>
using namespace std;

int main ()
{
    int min,n;
    cout << "Input number of elements" << endl;
    // Input validation!
    cin >> n;
    cout << endl;
    if( n <= 0 )
    {
        cout << "Non positive input.Exiting..." << endl;
        return -1;
    }

    int array[n];

    cin >> array[0];
    cout << endl;
    // we have only one element
    // now, so this is the min
    min = array[0];

    for(int i = 1 ; i < n ; i++)
    {
        cin >> array[i];
        cout << endl;
        // if the element we read
        // is smaller than min,
        // then assign to min
        // this element.

        if( array[i] < min )
           min = array[i];
    }

    cout << "min = " << min <<endl;
    return 0;
}

Hope this helps

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