printing the rombus

[Gordeeva Anna]

Hello everyone C:
If anything, I'm Russian and I know my English is not perfect, sorry


I need to do the program, printing the rombus of *, + or # using operator SWITCH. The problem is that I don't know how to directly organize the output symbols. This is my poor (in all senses) code:




 #include <iostream>  #include <cstdlib>  #include <cmath>   using namespace std;   int main ()   {    int height, width, choise;    char PrintSymbol;     cout << "Enter 1 for printing rhombus of '*'" << endl;     cout << "Enter 2 for printing rhombus of '+'" << endl;     cout << "Enter 3 for printing rhombus of '#'" << endl;     cout << "Please, enter the number 1-3: ";     cin >> choise >> endl;     cout << "You can enter only positive numbers otherwise the rhombus won't be built"     cout << "Enter the height of the rhombus: ";     cin >> height >> endl;     cout << "Enter the width of the rhombus: ";     cin >> width >> endl;      switch (choise)      {      case 1:          {              PrintSymbol = '*';              break;          }      case 2:          {              PrintSymbol = '+';              break;          }      case 3:          {              PrintSymbol = '#';              break;          }      default:          PrintSymbol = 0;          cout << "Incorrect input" << endl;          break;      }  }

So how to make it work? How to print rhombus?

A compiler also marks the 17th line as error.
I will be happy to get your explanations. Thank you

[Campbell Ritchie]

Welcome to the Ranch
So, you want to print    *   ***  ***** ******* ********* *******  *****   ***    *That is a common problem, and the solution is similar both in C++ and Java®. Remove the choice about which symbol to print; that is getting in your way. When you get the rhombus printed, then you can put the choice back.
You shou‍ld move most of that code out of the main function. Just as in Java®, that is intended for starting the application, not for the whole application. I suggest the following stages might help:-

1: Set up a loop to print 1 2 3 4 5

2: Enhance that loop to run from 1...n

3: Enhance that loop to print 1 3 5 7...n

4: Enhance the loop to print 1 3 5 7...n...7 5 3 1

Hints:-
1: The loop will run from 1 to 2n − 1. But maybe not 2n − 1 iterations.
2: You can create max and min functions, if they are not already available and work out how many to print with subtraction.

5: Create a loop to print n - 1...4 3 2 1 0 1 2 3 4...n - 1

6: Put the two loops together to print 4 1, 3 3, 2 5, 1 7, 0 9, 1 7, 2 5, 3 3, 4 1

7: Work out which of those numbers means spaces and which means print a symbol

This is how I would write min in C; max is very similar:-int min(int i, int j) {   return i < j ? i : j; }Note: the height and width of a rhombus are the same.