Karl Joonas Volke - 3 months ago 23

C Question

Im trying to get 2 values from a function. I've googled the problem, but I seem to mess up the code myself.

`double* suurim(double arv[], int x, double *array)`

{

int i;

double temp;

temp = arv[0];

for(i = 1; i < x; i++) // biggest

{

if (arv[i] > temp)

{

array[0] = arv[i];

}

}

for(i = 1; i < x; i++) // smallest

{

if (arv[i] < temp)

{

array[1] = arv[i];

}

}

return array;

}

suurim(arv, mituArvu, array);

printf("%0.1lf\n", array[0]);

It does not return what it's supposed to. What is going on here?

There is an array Arv. The function should get the biggest and smallest number from the array Arv and put them to array[0] and array[1] respectively.

Answer

Your approach *is* a valid way of returning more than one value back from a function. **But**:

For your maximum, you are merely returning the element of the array with the greatest index that is larger than the first element. (`temp`

does not change once set). That's an algorithmic failure: e.g. your_max(1, 3, 2, 0) would return 2.

You don't actually need `temp`

: you can compare `arv[i] > array[0]`

, having initialised `array[0]`

to `arv[0]`

.

Ditto for the the computation of the minimum.