exam ata, Perl - rextester

exam ata

// Online C compiler to run C program online
#include <stdio.h>

float getSum(float a, float b);

int main(void)
{
    int opt = 0;
    while ( opt >= 0 )
    {

printf("A VOID USER-DEFINED FUNCTION FOR:\n");
        printf("OPTION 1: Addition\n");
        printf("OPTION 2: Subtraction\n");
        printf("OPTION 3: Division\n");
        printf("OPTION 4: Multiplication\n");
        printf("OPTION 5: Power\n");
        printf("OPTION 0: End Program\n\n\n");
        printf("Input the case number for your operation: ");
        scanf("%d", &opt);

// OPTION 6: End program
        // printf("Enter option again. Press 0 to return, Press -1 to end\n");
        if ( opt == 0 )
        {
            break;
        }

else if ( opt == 1 )
        {
            int addOpt = opt;
            while ( addOpt > 0 )
            {
                float a, b, sum;

printf("Enter a first value: ");
                scanf("%f", &a);
                printf("\nEnter a second value: ");
                scanf("%f", &b);
                sum = getSum(a, b);
                printf("\nSum is: %f\n", sum);
                
                printf("Would you like to return to the main menu?\n");
                printf("Input 0 to return, Input -1 to end: ");
                scanf("%d", &addOpt);
                printf("\n");
                
                if ( addOpt == 0 )
                {
                    printf("Loading Main...\n");
                    break;
                }

else if ( addOpt == -1 )
                {
                    addOpt = opt;
                    printf("\n");
                }
            }
        }
    }
    return 0;
}

float getSum(float a, float b)
{
    float result;
    result = a + b;
    return result;
}


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