Program to enter a grade & check its corresponding remarks

This program accepts a grade as input (like A, B, C, etc.) and displays the corresponding remark using conditional statements. This is a good practice for learning if-else or switch-case in C.

#include <stdio.h>

int main() {
char grade;

// Input from user
printf("Enter your grade (A, B, C, D, F): ");
scanf(" %c", &grade); // Note the space before %c to consume newline

// Convert lowercase to uppercase (optional)
if (grade >= 'a' && grade <= 'z') {
grade = grade - 32;
}

// Check remarks
if (grade == 'A') {
printf("Excellent!\n");
} else if (grade == 'B') {
printf("Very Good\n");
} else if (grade == 'C') {
printf("Good\n");
} else if (grade == 'D') {
printf("Needs Improvement\n");
} else if (grade == 'F') {
printf("Fail\n");
} else {
printf("Invalid grade entered.\n");
}

return 0;
}

Output

Enter your grade (A, B, C, D, F): B 
Very Good


Enter your grade (A, B, C, D, F): f 
Fail


Enter your grade (A, B, C, D, F): E 
Invalid grade entered.

Explanation:

• The program takes a grade character as input.

• It checks the value using a series of if-else conditions.

• Lowercase letters are converted to uppercase.

• Based on the grade, it prints a corresponding remark.