Exercise02.cpp

// Preprocessor directives activity.
#include <iostream>
#include <string>

#define GRADE_C_THRESHOLD 25
#define GRADE_B_THRESHOLD 50
#define GRADE_A_THRESHOLD 75

int main() 
{
    int value = 0;
    std::cout << "Please enter test score (0 - 100): ";
    std::cin >> value;
    if (value < GRADE_C_THRESHOLD)
    {
        std::cout << "Fail";
    } 
    else if (value < GRADE_B_THRESHOLD)
    {
        std::cout << "Pass: Grade C";
    } 
    else if (value < GRADE_A_THRESHOLD) 
    {
        std::cout << "Pass: Grade B";
    } 
    else 
    {
        std::cout << "Pass: Grade A";
    }
}