Question

Write a code fragment in C language that tests the value of an integer num1. If the value is 10, square num1. If it is 9, read a new value into num1. If it is 2 or 3, multiply num1 by 99 and print out the result. Implement your code using SWITCH statements

Answer 1

Here are the desired outputs

Output 1

Output 2

Output 3

Output 4

And here is the C code

#include <stdio.h>

int main(void) {
        int num1;
        
        L1:
        printf("Enter num1 value\n");
        scanf("%d",&num1);
        
        switch(num1)
        {
           case 10: num1=num1*num1;
                    printf("The new value of num is %d", num1);
                    break;
                    
           case 9: printf("Re-enter a new value for num1\n");
                    goto L1;
                    break;

      case 2: num1 = num1*99;
                 printf("The new value of num is %d", num1);
                    break;
                    
           case 3: num1 = num1*99;
                 printf("The new value of num is %d", num1);
                    break;
                    
           default: printf("Entered value of num1 isn't right. Either enter 9 or 10 or 2 or 3\n");
                     break;

        }
        return 0;
}

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