C Program to display Grade

This Program to display Grade C less than 30, Grade B less than 40 and Grade A less than 50

#include<stdio.h>

main() {

    int a;

    printf("Enter the Number: \t");

    scanf("%d",&a);

       

    if(a < 30)

        printf("Grade C\n",a);

    else if(a < 40)

         printf("Grade B\n");

     else if(a <= 50)

          printf("Grade A\n");

      else

          printf("The Enter Number is more than 50\n");

}

Output

Enter the No.     35

Grade B

How it works

When user enters the input it checks if it is less than 30 or not. If yes then it prints Grade C. Similarly if its value is greater than that, then it prints Grade B or Grade A. But it shows invalid value if entered value is greater than 50.