This is what is asked of me.

"Create a flowchart and write a complete C++ program that declares a 2 dimensional integer array of size 10 rows and 10 columns. The program should use two nested for loops to fill the array with the even numbers beginning with 2 in the [0][0] element and filling the first row with 2, 4, 6, 8, 10, 12, 14, 16, 18, 20 and then continuing on the second row with 22, 24, etcâ€¦ The program should then use nested for loops to print the array in table form to the screen."

This is the code I have to fill the array (i think it works I have not ran it since I can't get it to print out).

``````//Michelle Stokes CSI130 Handout 10
//Arrays

#include <iostream>
using namespace std;

int main()
{
int ray[10][10], r, c, n;
for(r=0; r<=10; r++)
{
for(c=0; c<=10; c++)
{
n=2;
ray[r][c]=n;
n=n+2;
}
}

return 0;
}``````

my problem is, I can't figure out how to print the array in table form to the screen. I thought maybe something along these lines to get it to print...

``````for(r=0; r<=10; r++)
{
for(c=0; c<=10; c++)
{
cout << "  " << ray[r][c];
}
}``````

But I don't think it looks right.

I ran it and got a screen full of twos and finally a debug error of "Run-Time Check Failure #2 - Stack around the variable 'ray' was corrupted.

## All 3 Replies

Just take away the <=10 and substitute in <10, going less than or equal to will overstep your array.

Also, you can accomplish the first part with just the loop variables (no need for n) ;)

Just take away the <=10 and substitute in <10, going less than or equal to will overstep your array.

Also, you can accomplish the first part with just the loop variables (no need for n) ;)

I tried this, which fixed the all 2's thing.

If i do this;

``````#include <iostream>
using namespace std;

int main()
{
int ray[10][10], r, c, n=2;
for(r=0; r<=10; r++)
{
for(c=0; c<=10; c++)
{
ray[r][c]=n;
n=n+2;
}
}
for(r=0; r<10; r++)
{
for(c=0; c<10; c++)
{
cout << ray[r][c] << "  ";
}
}
return 0;
}``````

I get 2 - 218 printed all right after each other till I get the same error. And my table isn't right.

Should be
2 4 6 8 10 12 14 16 18 20
22 24 26 28 30 32 34 36 38 40
42 44 46 48 50 52 54 56 58 60
etc..... to 200.

I finally got it!

Thanks for the help!!

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