/* 
 * Example of the switch statement with type int case labels
 * 
 */ 

#include <stdio.h> 

int
main(void)
{
    int grade;  
     
    printf("Input the numerical grade (0,1,2,3,4)>");   
    scanf("%d", &grade); 

    /* Use the nested-if statement */ 

    if (grade == 4)
        printf("Excellent");
    else if (grade == 3)
        printf("Good");
    else if (grade == 2)
        printf("Average");
    else if (grade == 1)
        printf("Poor");
    else if (grade == 0)
        printf("Failing");
    else 
        printf("Illegal grade");
    
    
    /* An alternative: use the switch statement*/ 

    switch (grade) {
        case 4:
            printf("Excellent");
            break; 
        case 3: 
            printf("Good");
            break;
        case 2:
            printf("Average");
            break;
        case 1:
            printf("Poor");
            break;
        case 0:
            printf("Failing");
            break;
        default:
            printf("Illegal grade");
            break; 
    }

    return 0; 
}