Sum of two arrays printed in a third array by passing the values to a function

[asya]

Hello,
I have an assignment to make. I am not sure if I am on the right track and I receive two errors from the compiler. I am also not sure if I should put the "cout" part in the sum() or in main()
Thank you in advance for your advices.
Here is the assignment:
Create three arrays of 20 integers each. Fill in two arrays with data, leaving the third blank. From main, pass these three arrays into a function. Inside the function, add the value of each array element and store it in the third.

third_array[i] = second_array[i] + first_array[i]

Back in main, print out the value of every element in the third/sum array. Excellent output on this assignment might show something like:

Array 1 + Array 2 = Array 3

5 + 3 = 8

etc.

  #include <iostream>
#include <iomanip>

using namespace std;

void sum(int [], int [], int [], int);

int main()
{
	const int arraySize = 20;
	int first_array[arraySize] = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,18,20};
	int second_array[arraySize] = {11,12,13,14,15,16,17,18,19,20,
								21,22,23,24,25,26,27,28,29,30};
	int third_array[arraySize] = {};
	
	cout << setw(7) << "Array 1" << setw(3) << "+" << setw(10)
	<< "Array 2" << setw(3) << "=" << setw(10) << "Array 3" << endl;

	
	sum( first_array, second_array, third_array, arraySize);
	
}

void sum(int a[], int b[], int c[], int sizeArray)
{
	for (int i = 0; i < sizeArray; ++i)
	c[i]= b[i] + a[i];
	
	cout << setw(7) << a[i] << setw(3) << "+" << setw(10)
	<< b[i] << setw(3) << "=" << setw(10) << c[i] << endl;
}

The two errors are: 29: name lookup for 'i' changed for new ANSI 'for' scoping
and 26: using obsolete binding at 'i'

[Ispil]

You forgot braces starting on line 27 and ending on line 30; in other words, when you have something like an if, while, or for statement without brackets, only the next line will be looped over. You have to add braces around a larger statement if you want the for loop to include more than one statement. Otherwise, your code should work fine.

[asya]

Thank you, Ispil!
It worked.