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print shapes using characters for loops

daldrome (8)
Hey guys,
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for (i = 1; i <= n; i++)
		{
			
		 	 	  	  	  	   
	 	 for (j = 1; j <= i; j++)	 	  	 
				cout << "*\t";
				cout << endl;
				
						 	 	 
			for (int l=1; l <= i; l++)
               
              {
                  for (int m=1 ; m <=i; m++)
                  {
                      cout << "&\t";
                  }
                cout << endl;
              } 
			  	     	 
	
		}


I have modified the inner for loops to this.

So now it prints out like this when n=3.

*
&
**
&&
&&
***
&&&
&&&
&&&

but I want this
*
&
*
**
&&
&&
*
**
***
&&&
&&&
&&&

Please explain the code, as I don't understand it fully
Thank you for your help :)
Last edited on
ciphermagi (807)
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#include <iostream>

using namespace std;

int main(){
    int n = 0;
    cout << "Enter a positive whole number: ";
    cin >> n;
    for(int i = 0; i < n; i++){for(int j = 0; j < i; j++){cout << "*\t" << endl;}}
}


If I'm understanding the point of your code, this should work just fine.
daldrome (8)
I need another nested while loop to print out '&' characters. I'm just not sure where to place it, as when I've tried, I only get infinite loops of '&' characters printed out.
markyrocks (346)
i can tell you right now there something wrong with this....


while (n < 0 && n > 10); '


so n is gona be less than 0 AND greather than 10 at the same time....
markyrocks (346)
edit what I said here was wrong. I'm delirious from staring at code. ummm I tried to rewrite this a lil bit but i'm fried. your on your own.
Last edited on
biplav17 (159)
This should help :D I did the code a few weeks back. Not exact yours but is very similar

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#include <cstdlib>
#include <iostream>
#include <string>

using namespace std;

int main(int argc, char *argv[])
{
    
    int l,w,h, input, width, width2, recwidth, twidth2, twidth, twidth3;
    string character;
    cout << "what shape do you want to create" << endl;
    cout << "1) square 2) Rectangle 3) Triangle " << endl;
    cin >> input;
    if (input == 1)
    {         cout << "OK. I am ready. What is the side length" << endl;
              cin >> l ;
              cout << "what character do you want to use????" << endl; 
              cin >> character;
              system ("CLS");
              for (int width=1; width <= l; width++)
               
              {
                  for (int width2=1 ; width2 <=l; width2++)
                  {
                      cout << character   ;
                  }
                cout << endl;
              }                      
                    
    }
    else if (input ==2)
    {
              cout << "OK. I am ready. What is the side length" << endl;
              cin >> l ;
              cout << "OK. I am ready. what is the width?" << endl;
              cin >> recwidth ;
              cout << "what character do you want to use????" << endl; 
              cin >> character;
              system ("CLS");
              for (int width=1; width <= l; width++)
               
              {
                  for (int width2=1 ; width2 <=recwidth; width2++)
                  {
                                            cout << character ;
                  }
              cout << endl;
              }   
              
    }                 
    else if (input ==3)
    {
              cout << "OK. I am ready. What is the side length" << endl;
              cin >> l ;
              cout << " what is the second side?" << endl;
              cin >> twidth2 ;
              cout << "what character do you want to use????" << endl; 
              cin >> character;
              system ("CLS");
              for (int width=1; width <= l; width++)
               
              {
                  for (int width2 = width -1 ; width2 < twidth2; width2--)
                  {
                      cout << character ;
                       cout << endl;
                  }
              cout << endl;
              } 
      }  
    
    {
        cout << " " << endl;
    }
    
                  
       
    system("PAUSE");
    return EXIT_SUCCESS;
}

daldrome (8)
post edited. please refer to first post of thread
Last edited on
detroit (181)
You should try to figure this out yourself:

I am a begginer and it only took me 5 min to figure it out, just by messing with it.
This way you lear better as well.

Well here is you code

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	int n, i;
	int j, k;
	
	do{
		cout <<" Enter a positive int n: ";
		cin >> n;
		cout << endl;
	   } while (n < 0 || n > 10);// better if you change it to OR 
	
	
  do{
		for (i = 1; i <= n; i++)
		{
			for (j = 1; j <= i; j++)
			{
				cout << "*\t";
			}
			cout << endl;
			for (j = 1; j <= i; j++)
			{
				cout << "&\t";
			}
            cout << endl;
		}
	 } while (i <= n);


	return 0;
}
daldrome (8)
I'm not very sure what the variables in the for loop does. Can someone explain it to me?
daldrome (8)
Finally figured it out myself. Thanks for your help anyways :D
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for (i = 1; i <= n; i++)
		{
			 	 	 	  	  	   	  	 
		  {	   
					 	 	 
			  for (j=1; j <= i; j++)
	               
	              {
	                  for (k=1 ; k <=j; k++)
	                  {
	                      cout << "*\t";
						  	
						 
	                  }
					 
					  
					  cout << endl;
	                  
	              } 
			  	   for (int l=1; l <= i; l++)
 
             		 {
		                  for (int m=1 ; m <=i; m++)
		                  {
		                      cout << "&\t";
		                  }
					  cout << endl;
				     }   	   
			}
		}
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