[leam]

hello C++ users, im in need of help regarding with the nested loop.

here's the question..

Write a program that will display the pattern below depending on the value of n.

Sample output:

Enter a value of n: 4

output:

*
**
***
****
***
**
*

i need ur response
Ive tried answering it and here’s my work:

 

#include<iostream>
using namespace std;
main()

{
      int a;
      cout<<"Enter a value of n: ";
      cin>>a;
      cout<<endl;
      
      for(int x=1; x<=1; x++)
      {
      for (int y=1;y<=1;y++)
      cout<<"*";
      cout<<endl;
      }
      
      for(int x=1; x<=1; x++)
      {
      for (int y=1;y<=2;y++)
      cout<<"*";
      cout<<endl;
      }
      for(int x=1; x<=1; x++)
      {
      for (int y=1;y<=3;y++)
      cout<<"*";
      cout<<endl;
      }
      for(int x=1; x<=1; x++)
      {
      for (int y=1;y<=4;y++)
      cout<<"*";
      cout<<endl;
      }
      for(int x=1; x<=1; x++)
      {
      for (int y=1;y<=3;y++)
      cout<<"*";
      cout<<endl;
      }
      for(int x=1; x<=1; x++)
      {
      for (int y=1;y<=2;y++)
      cout<<"*";
      cout<<endl;
      }
      for(int x=1; x<=1; x++)
      {
      for (int y=1;y<=1;y++)
      cout<<"*";
      cout<<endl;
      }
      
      
      
      system("pause");
      return 0;
} 

Sad to say it’s still wrong.

This post has been edited by no2pencil: 25 June 2012 - 01:39 AM
Reason for edit:: Corrected code tags

[Salem_c]

11 for(int x=1; x<=1; x++)
12 {
13 for (int y=1;y<=1;y++)
How do these involve the input value stored in a?

If you input 4 say, then try just printing
1
2
3
4
3
2
1

When you can do that, it should be evident how to print that many stars.

[leam]

what i want to know is how to write a program that will display the output of semi-pyramid depending on the number inputted.. like for example. if i input 4


the output must be like this.

Enter the value of n: 4

*
**
***
**** ----> 4 asterisks
***
**
*

so the maximum number of asterisks there is 4 which can be found at the center part of the pyramid or the one that divides the pyramid into 2.

and if input 3, the pyramid must be decrease in size.. like this

*
**
*** ---> 3 asterisks
**
*




i need your response.

[Salem_c]

Yes, and I gave you a learning exercise to try, which would lead you towards your answer.

[aresh]

Oh, and saying "i need your response" does not make us any eager to answer your question. Try out the exercise which Salem_C gave, and then you will get the idea of making the program you want.