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Show what you done and describe what help you need. Post a sample run, too.

Really? Here's my for loop. Not that bad . . .

for ( int i = 0 ; i < rows * squareSize ; i++ )
{
// start every row in the block with the same character
...

Since I suggested it . . .

My approach:

- The size of the square defines the height or number of rows in a 'block' of output
- Each row in a block of output begins with the same character,...

@andbin: Now I understand why you suggested 4 loops. I was trying to figure out why so many were needed, but I was stuck in my own design idea, and I love the math.

You're also missing some simple math required to make the loops work. Your specification is a little confusing, but if you think it through, then the user's input

2 3 5 *

is a 2 x 3...