find the totals of positive and negative integers

Hey up everyone.

Right, this is whats baffling me. I want to read in a set of numbers (10), either positive or negative, and find the separate totals of both (if this is possible).

I have the following code:

Code:

---

#include <stdio.h>

int i,totpos,totneg;

int main()
{
        for (i=0;i<10;i++)
        {
                printf("Enter number %d...",i);
                scanf("%d",&number[i]);
        }
       
        //
       
        printf("The totals of your positive numbers is: %d",totpos);
        printf("The totals of your negative numbers is: %d",totneg);
        return(0);
}

---

but I don't know how you add up, seprately, both the positive and negative integers! How would you distinguish between the two??


Any help would be much appriciated on this!

Cheers,
Chris.

Quote:

---

(if this is possible).

---

Anything is possible first you don't have number declared, but for your functions you should test if they are positive or negative like this

Code:

---

int totpos(int num){
    static int total=0;
    if(num<0)
          return total;
    else
          return (total+=num);
}

---

and basically the same for negative numbers You need total to be static so it retains its value when you run it agian. Don't worry it won't be set to 0 the second or any other time you run it

you want to find the total of all the negative number, and the total of all the positive numbers?

Code:

---

int array[10];
int x, negtot, postot;
negtot = postot = 0;
/* array is assigned */
for(x=0;x<10;x++) {
    if(array[x] < 0)
          negtot += array[x];
    if(array[x] > 0)
          postot += array[x];
    /* don't have to worry about zero because it wouldn't affect the totals */
}

---

Your number array must be declared: int number[10];

Then you can check for positive and negatives like:

if( number[i] >= 0 ) /* Your number is positive */
/* sum up your pos total here */
else /* Your number is negative */
/* sum up you neg total here */

And this check should go in your loop after you have read in the number.

whoops i thought totpos was a function and so was totneg. Oh well. Ya'lls work

You can also do it in a single loop. Hell, you can even do it while you initially read the value in. Here's the pseudocode. I'll leave it as an exercise to the origional poster:

Code:

---

while we haven't read ten numbers
    read a number
    if the number is negative
        add to negative numbers
    otherwise
        add to positive numbers
print totals

---

I can't make it any clearer than that, otherwise you'd have the source code for it.

Quzah.