nested for structures

Question

Write a program that prints the following diamond shape. You may use output statements that print a single asterisk (*), a single space or a single newline character. Maximize your use of repetition (with nested for structures) and minimize the number of output statements.

*

***

*****

*******

*********

*******

*****

***

*

Vulpes · Answer

Try this: using System; class Diamond { static void Main() { for(int row = 0; row { for(int col = 0; col for(int col = 0; col Console.Write("
"); } for(int row = 0; row { for(int col = 0; col for(int col = 0; col Console.Write("
"); } Console.ReadKey(); } }

ahmed sami · Answer

oh my god !!! you are a Genius !! thank you very much .. ^_^

Vulpes · Answer

This part of the code prints the first 5 rows of the diamond: for(int row = 0; row { for(int col = 0; col for(int col = 0; col Console.Write("
"); } Each row will begin with (4 - row) spaces followed by (2 * row + 1) asterisks and a new line character So: row 0 -> 4 spaces + 1 asterisk + '
' row 1 -> 3 spaces + 3 asterisks + '
' row 2 -> 2 spaces + 5 asterisks + '
' row 3 -> 1 space + 7 asterisks + '
' row 4 -> 0 spaces + 9 asterisks + '
' This part of the code then prints the last 4 rows of the diamond: for(int row = 0; row { for(int col = 0; col for(int col = 0; col Console.Write("
"); } Each row will begin with (row + 1) spaces followed by (7 - 2 * row) asterisks and a new line character. So: row 0 ( = row 5) -> 1 space + 7 asterisk + '
' row 1 ( = row 6) -> 2 spaces + 5 asterisks + '
' row 2 ( = row 7) -> 3 spaces + 3 asterisks + '
' row 3 ( = row 8) -> 4 spaces + 1 asterisks + '
' There are some fancier ways of doing this but this one is (fairly) easy to understand :)

ahmed sami · Answer

it works !!! thank you .. but can you explain the code please ? couse i misunderstand it !!!