assignment6-1-2.cpp

This is solution code c++ in class lesson.

#include<iostream>
#include<fstream>

using namespace std;
int main()
{
    int score;
    ifstream fin("data.txt");
    ofstream fout("grade.txt");
    while(fin >> score)
    {
        fout << score << " ";
        if (score < 50) fout << "F" << endl;
        else if (score < 60) fout << "D" << endl;
        else if (score < 70) fout << "C" << endl;
        else if (score < 85) fout << "B" << endl;
        else fout << "A" << endl;
    }
    fin.close();
    fout.close();
    system("pause");
    return 0;
}