For loop assistance!

**jstruck** · 02-19-2018

I'm very new to programming (so I apologize in advance), and I am having trouble figuring out how to make a for loop that will do the following:

I'm asking the user to input two variables (i'll call them x & y), which I then am calculating x/y = z. I want to pose this two variable input question 3 times, and then add up the 3 z to find the average. (The later part about accumulating/averaging I can figure out, but getting a for loop to repeat and give z three times is stumping my extremely novice mind. So far I can only get the for loop to ask for the two variable inputs one time, spit out z, and then terminate (I haven't attempted the averaging of z yet, because I don't have more than one z at this time).

To make things clearer, here's what I've got (user prompts to be more clearly developed later, just looking for for loop solving here, not prompt critique

):

Code:

I'm very new to programming (so I apologize in advance), and I am having trouble figuring out how to make a for loop that will do the following:
I'm asking the user to input two variables (i'll call them x & y), which I then am calculating x/y = z. I want to pose this two variable input question 3 times, and then add up the 3 z to find the average. (The later part about accumulating/averaging I can figure out, but getting a for loop to repeat and give z three times is stumping my extremely novice mind. So far I can only get the for loop to ask for the two variable inputs one time, spit out z, and then terminate (I haven't attempted the averaging of z yet, because I don't have more than one z at this time).
To make things clearer, here's what I've got (user prompts to be more clearly developed later, just looking for for loop solving here, not prompt critique :) ):
includeint main(void) {
float x, y, z;
char c;

printf ("Enter x: ");
scanf ("%f",&x);
while((c = getchar()!='\n')&& c != EOF);

printf ("Enter y: ");
scanf ("%f",&y);
while((c = getchar()!='\n')&& c != EOF);

for(x, y; x <=1; x++)
{
    z = x / y;
    printf("Your average is %f\n", z);
}

printf("Thank you for using the program. Goodbye\n");

getchar();

return0;
}Thanks for your help!!

Thanks for your help!!

**Salem** · 02-19-2018

First of all, when posting code, make sure to use the copy-as-text / paste-as-text features of your IDE and/or browser.

Second, remove your attempt to remove the trailing newline:
1. It's not necessary yet.
2. What you've written is wrong anyway.

Third, read this -> A development process
So step 1 is

Code:

int main ( ) {
    printf ("Enter x: ");
    scanf ("%f",&x);
    printf ("Enter y: ");
    scanf ("%f",&y);
    z = x / y;
    printf("Your average is %f\n", z);
}

Step 2 is

Code:

float doQuotient( ) {
    printf ("Enter x: ");
    scanf ("%f",&x);
    printf ("Enter y: ");
    scanf ("%f",&y);
    z = x / y;
    return z;
}

int main ( ) {
    z = doQuotient();
    printf("Your average is %f\n", z);
}

Step 3 is

Code:

int main ( ) {
    for ( i = 0 ; i < 3 ; i++ ) {
        z = doQuotient();
        printf("Your average is %f\n", z);
    }
}

**jstruck** · 02-19-2018

Sorry, but can you place this all together? Having trouble understanding what the final product should look like with the way you have it all separated out.

**Salem** · 02-19-2018

Having it all separated out is how you're supposed to do it.

Having a big ball of mud all in main just breeds confusion.

I take it you never even bothered to try and make my post work - just begged for free food.

**jstruck** · 02-19-2018

I was trying, but I was confused. Had more to do with not understand a direction than wanting it thrown down for me. Don't assume.

It's all figured out now fyi.

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