2-2question1.cpp

This is solution code c++ in class lesson.

#include<iostream>
using namespace std;
int main()
{
    int score;
    cout << "Enter a score: ";
    cin >> score;
    char grade;
    if (score < 50) // (score >= 0 && score <= 49)
       grade = 'F';
    else if (score < 60) // (score >= 50 && score <= 59)
         grade = 'D';
    else if(score < 70) // (score >= 60 && score <= 69)
         grade = 'C';
    else if (score < 80)// (score >= 70 && score <= 79)
         grade = 'B';
    else // (score >= 80)
         grade = 'A';
    cout << "The grade of score " << score << " is " << grade << endl;
    system("pause");
    return 0;
}