How we can make simple shapes from for loop in c++ code

Simple Triangle Code:

#include <iostream>

#include <string>

using namespace std;

int main()

                {

        for(int i=0; i<=5; i++)

        {

                for(int j=0; j<=i; j++)

                {

                                cout<<"*";

                                                }

                                                cout<<endl;

                                }

                }

Output:

*

**

***

****

*****

Other type of Triangle Code:

#include <iostream>

#include <string>

using namespace std;

int main()

                {

        for(int i=5; i>=0; i--)

        {

                for(int j=0; j<=i; j++)

                {

                                cout<<"*";

                                                }

                                                cout<<endl;

                                }

                }

Output:

******

*****

****

***

**

*

Square Shape Code:

#include <iostream>

#include <string>

using namespace std;

int main()

                {

        for(int i=0; i<=3; i++)

        {

                for(int j=0; j<=5; j++)

                {

                                cout<<"*";

                                                }

                                                cout<<endl;

                                }

                }

Output:

******

******

******

******

Diamond Shape Code:

#include <iostream>

using namespace std;

int main()

{

int row,col;

cout<<"Enter number rows : ";

cin>>row;

cout<<"Enter number of colums : ";

cin>>col;

       for(int i=0,l=0; i<=col,l<=col; i=i+2,l=l+2)

{

for(int j=row; j>=l-2; j=j-2)

{

cout<<" ";

        }

        for(int k=0; k<=i-2; k++)

        {

    cout<<"*";

}

cout<<endl;

}

for(int i=0,l=0; i<=col,l<=col; l++,i=i+2)

{

for(int k=0; k<=l; k++)

       {

    cout<<" ";

}

for(int j=row; j>=i; j--)

{

cout<<"*";

        }

   cout<<endl;

 }

}

Output:

Enter number rows : 8

Enter number of colums : 8

         *

       ***

     *****

   *******

 *********

   *******

     *****

      ***

        *

Right Triangle Code:

#include <iostream>

using namespace std;

int main()

{

int row,col;

cout<<"Enter number rows : ";

cin>>row;

cout<<"Enter number of colums : ";

cin>>col;

for(int i=0; i<=col; i=i+2)

{

for(int j=row; j>=i; j=j-2)

{

cout<<" ";

   }

   for(int k=0; k<=i; k++)

   {

    cout<<"*";

}

cout<<endl;

}
Output:

Enter number rows : 8

Enter number of colums : 8

         *

       ***

     *****

   *******

 *********

Opposite Right Triangle Code:

#include <iostream>

using namespace std;

int main()

{

int row,col;

cout<<"Enter number rows : ";

cin>>row;

cout<<"Enter number of colums : ";

cin>>col;

for(int i=0,l=0; i<=col,l<=col; l++,i=i+2)

{

for(int k=0; k<=l; k++)

   {

    cout<<" ";

}

for(int j=row; j>=i; j--)

{

cout<<"*";

   }

   cout<<endl;

   

}

}
Output:

Enter number rows : 8

Enter number of colums : 8

 *********

   *******

     *****

       ***

         *

Another Triangle Code:

#include <iostream>

using namespace std;

int main()

{

int row,col;

cout<<"Enter number rows : ";

cin>>row;

cout<<"Enter number of colums : ";

cin>>col;

for(int i=0; i<=col; i++) 

 { 

 for(int j=row; j>=i; j--) 

 { 

 cout<<"*"; 

 } 

 cout<<endl; 

 for(int k=0; k<=i; k++) 

 { 

 cout<<" "; 

 } 

 }

 }

Output:

Enter number rows : 6

Enter number of colums : 6

*******

  ******

    *****

      ****

        ***

          **

            *

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