HELP PLEASE! Astrix and triangles..

[asm103940]

How do i make the astrix do this?... I know I have to add spaces somewhere Im just not sure where... i have the first two triangles down .. the third and fourth one im struggling with.. and also this is according to what the user puts in .. so for example this is for 5.

*****
****
***
**
*
*****
+****
++***
+++**
++++*

+++++*+++++
++++***++++
+++*****+++
++*******++
+*********+


+++++*+++++
++++*+*++++
+++*+++*+++
++*+++++*++
+*********+

(without the +s)

#include <iostream>
using namespace std;

int main() {
int num;
   
   do
   {
      cout << "Enter a number between 1 and 15: " << endl;
      cin >> num;
      
      if (num > 15 || num < 1)
      {
         cout << "Error! The number must be between 1 and 15." << endl;
      }
   }   
   while (num > 15 || num < 1);
   
   for(int pattern = 0; pattern < 2; pattern++)
   {
      for (int i = num; i > 0; i--)
      {
         for (int j = 0; j < i; j++)
         {
            cout << "*";
         }
         cout << endl;
       }
    }
    
	return 0;
}

[integralfx]

Seems to work fine for me.

Enter a number between 1 and 15: 
5
*****
****
***
**
*
*****
****
***
**
*

[asm103940]

@intelgralfx
i meant
*****
****
***
**
*
*****
+****
++***
+++**
++++*

(without the pluses, with spaces instead)

[integralfx]

for( int i = num; i > 0; i-- )
{
    for( int s = 0; s < num - i; s++ ) {
        cout << " ";
    }
    for( int j = 0; j < i; j++ ) {
        cout << "*";
    }
    cout << endl;
}

Enter a number between 1 and 15: 
5
*****
****
***
**
*
*****
 ****
  ***
   **
    *

Might be useful: http://www.cplusplus.com/forum/general/200987/

[asm103940]

@intelgralfx .. wait now its only showing the bottom triangle..

#include <iostream>
using namespace std;

int main() 
{
	int num;
	do
	{
      cout << "Enter a number between 1 and 15: " << endl;
      cin >> num;
      
      if (num > 15 || num < 1)
      {
         cout << "Error! The number must be between 1 and 15." << endl;
      }
	}
	while (num > 15 || num < 1);
	for (int i = num; i > 0; i-- )
	{
		for (int s = 0; s < num - i; s++)
   		{
   			cout << " ";
   		}
		for (int j = 0; j < i; j++)
		{
			cout << "*";	
   		}
   		cout << endl;
	}
   return 0;
}

[integralfx]

That's because the spacing loop runs on every iteration. If you just want it on the second triangle, just add an if statement.

[tandoro]

How do I make the astrix do this?... I know I have to add spaces somewhere I'm just not sure where...
*****
****
***
**
*
*****
****
***
**
*

#include <iostream>

using namespace std;

int main()
{
	int N;
	int i, j, k;
	do
	{
		cout << "Enter a number from 1 - 15 : "; 
		
		if(cin >> N && N >= 1 && N <= 15)
		{
			// Do nothing
		}
		else
		{
			if(!cin)
			{
				cin.clear();
				cin.ignore(1000, '\n');
			}

			N = 20;
			cout << "Invalid number. Try again\n\n";
		}
	} while(N < 1 || N > 15);

	// Two triangles
	for(k = 0; k < 2; k++)
	{
		for(i = N; i >= 1; i--)
		{
			for(j = i; j >= 1; j--) cout << '*'; cout << endl;
		}
	}
	
	cin.get();
	return 0;
}

Enter a number from 1 - 15 : 5
*****
****
***
**
*
*****
****
***
**
*

http://cpp.sh/3spg2

[asm103940]

would it be this @integralfx?

if (pattern = 1) {
for( int s = 0; s < num - i; s++ ) {
        cout << " ";
    }
}

[dragonStarN]

#include <iostream>

using namespace std;

int main()
{
	int N;
	int i, j;
	do
	{
		cout << "Enter a number from 1 - 15 : "; 
		
		if(cin >> N && N >= 1 && N <= 15)
		{
			// Do nothing
		}
		else
		{
			if(!cin)
			{
				cin.clear();
				cin.ignore(1000, '\n');
			}

			N = 20;
			cout << "Invalid number. Try again\n\n";
		}
	} while(N < 1 || N > 15);

	// Triangle 1
	for(i = N; i >= 1; i--)
	{
		for(j = i; j >= 1; j--) cout << '*'; cout << endl;
	}

	// Triangle 2
	for(i = N; i >= 1; i--)
	{
		for(j = N; j > i; j--) cout << ' ';
		for(j = i; j >= 1; j--) cout << '*'; cout << endl;
	}
	
	cin.get();
	return 0;
}

Enter a number from 1 - 15 : 5
*****
****
***
**
*
*****
 ****
  ***
   **
    *

http://cpp.sh/4inji