chap1.5

#include <cs50.h>
#include <stdio.h>

int main(void)
{
    // Get grade as a number
    int grade = get_int("Enter your grade: ");
                   
    // grades between 90 and 100 get an A                    
    if (grade > 89 && grade < 101)
    {
        printf("You get an A!\n");   
    }
                       
    // grades between 80 and 89 get a B                    
    if (grade > 79 && grade < 90)
    {
        printf("You get a B!\n");   
    }  
                     
    // only grades between 70 and 79 get a C                   
    if (grade > 69 && grade < 80)  
    {
        printf("You get a C!\n");
    }    
                        
    // all other need improvement
    if (grade < 70)
    {
        printf("You need to work harder to pass this class!\n");
    }                                       
}