/*--------------------------------------------------
 File: minGrade.cpp
 Name: Sharon M. Tuttle
 last modified: 5-3-05

 Contract: minGrade : double[] int -> double
 Purpose: return the smallest grade amongst the
          first size grades in array grades.
          (return 0 if size is 0 or less!)

 Examples: for double grades[10] = {76.5, 88.0, 99.6, 66, 
                                    43.0, 93.2, 73.0, 72.0, 
                                    74.0, 95};
          minGrade(grades, 10) == 43.0
--------------------------------------------------*/

#include <iostream>
#include <cmath>
using namespace std;

double minGrade(const double grades[], int size)
{
    double minGradeSoFar;

    // for array size of 0 or less, just stop now!
    if (size == 0)
    {
        return 0.0;
    }

    // IF reach here, then, there ARE some grades to 
    //    check;
    // first is smallest seen so far...
    minGradeSoFar = grades[0];

    // ...now compare the REST in grades, to see if
    //    any other is smaller:
    for (int i=1; i < size; i++)
    {
        if (grades[i] < minGradeSoFar)
        {
            minGradeSoFar = grades[i];
        }
    }

    return minGradeSoFar;
}