Untitled

#include <stdio.h>

int main() {
    char studentName[50];
    int grade;

    printf("Enter the student's name: ");
    scanf("%49s", studentName);

    printf("Enter the grade (1-100): ");
    scanf("%d", &grade);

    if (grade < 0 || grade > 100) {
        printf("Error: Grade must be between 0 and 100!\n");
    } else {
        
        printf("Student: %s\n", studentName);
       
        if (grade >= 90 && grade <= 100) {
            printf("The letter grade is: A\n");
            printf("Excellent work!\n");
        } else if (grade >= 80 && grade <= 89) {
            printf("The letter grade is: B\n");
            printf("Good job!\n");
        } else if (grade >= 70 && grade <= 79) {
            printf("The letter grade is: C\n");
            printf("You can do better!\n");
        } else if (grade >= 60 && grade <= 69) {
            printf("The letter grade is: D\n");
            printf("Needs improvement.\n");
        } else {
            printf("The letter grade is: F\n");
            printf("Failed. Study harder next time.\n");
        }
    }

    return 0;
}