Thread: I need some thoughts on this Diamond Nested For loop

Hello everyone, I just joined this forum. I need some thoughts about a diamond nested for loop, the code below shows 17 stars at middle which is what I need, and one more thing I need is to only print out
1, 4, 9, 13, 17, 13, 9, 4, 1, * pattern. Thanks guys!

Code:

 #include <stdio.h>
#include <conio.h>
#include <iostream.h>

int main()
{   clrscr();
    int     numStars = 1,
     numSpaces = 8;

    while (numSpaces > 0)
    {
    for (int i = 0; i < numSpaces; i++)
    {
        cout << " ";
    }
    for ( i = 0; i < numStars; i++)
    {
        cout << "*";
    }
    cout << "\n";

    numStars += 2;
    numSpaces--;
    }
    while (numStars > 0)
    {
    for (int i = 0; i < numSpaces; i++)
    {
        cout << " ";
    }
    for ( i = 0; i < numStars; i++)
        {
            cout << "*";
        }
        cout << "\n";
    numStars -= 2;
        numSpaces++;
    }

    getch();
    return 0;
}

stdio.h is a C header not a C++ header. conio.h is nonstandard. iostream.h was deprecated sometime around the time the dinosaurs became extinct. In two of your loops i is undefined.

The code will work and print out a diamond of stars if you fix the undefined loop variables, and remove the nonstandard stuff.

As for changing the loops to print out a different diamond pattern, well you managed to get this far on your own, I am sure you can work that out, unless of course you have copied this code from somewhere in which case you might be up a certain creek without a paddle.

Which compiler are you using in class? Turbo-C? If so and you're serious about learning programming, find a better school.

I love the username though lol.