?
Solved

Needs help in logic

Posted on 2011-02-21
7
Medium Priority
?
377 Views
Last Modified: 2012-06-21
Hi guys: Can any one please help me in the logic. I try first but stuck in the middle of it.


1   1   1     1       1     1
2   4   8   16      32   64
3   9   27   81   243   729
4 16   64   256 1024  4096


#include <iostream>
using namespace std;

int main()
{
      int row1 = 0;
      int col1 = 0;
      cout << "1" << "    " << "1" << "    " << "1" << "    " << "1" << "    " << "1" << "    " << "1" << endl;
      for(row1 = 1; row1 <= 4; row1 ++)
      {
                  for(col1 = 1; col1 <= 4; col1 ++)
                  {
                        cout << row1*col1;
                  



      system("pause");
      return 0;
}  
0
Comment
Question by:mustish1
  • 4
  • 3
7 Comments
 
LVL 37

Accepted Solution

by:
TommySzalapski earned 2000 total points
ID: 34947149
I'll show you how I would do row 2 and let you figure the others out.

const int ITERATIONS = 6;


int multiplier = 2;
int num;

num = multiplier;
for(int i = 0; i < ITERATIONS; ++i)
{
  cout<<num<<'\t';
  num *= multiplier;
}

Open in new window

0
 
LVL 37

Expert Comment

by:TommySzalapski
ID: 34947166
Then you just change multiplier for each row. Just make sure you do num = multiplier every time before you get into the loop. Note: the '\t' is the tab character to make the output look more pretty. You could also use the iomanip library and setw if you wanted to pick how wide each column should be.

Bonus: You don't need to (and shouldn't) do row 1 separately. Just set the multiplier to 1 for that row.
0
 

Author Comment

by:mustish1
ID: 34947850
Thanks. I did it try to avoid the use of tab thing and use "  " but it dont work. Is there any way i can arrange them without using \t

#include <iostream>
using namespace std;

int main()
{
const int ITERATIONS = 6;
int multiplier = 1;
int num=1;
int i = 0;
int k = 0;
for(k = 0; k < 4; k++)
      {
      num = multiplier;
      for(i = 0; i < ITERATIONS; ++i)
            {
                  cout << num << '\t';
                  num *= multiplier;
            }
      cout << endl;
      multiplier++;
      }
system("pause");
return 0;
}  
0
The new generation of project management tools

With monday.com’s project management tool, you can see what everyone on your team is working in a single glance. Its intuitive dashboards are customizable, so you can create systems that work for you.

 

Author Closing Comment

by:mustish1
ID: 34947853
Thanks.
0
 
LVL 37

Expert Comment

by:TommySzalapski
ID: 34947893
As I mentioned you could use setw (#include<iomanip>) to specify a width. You also could count the digits in the integer by finding the log base 10 and rounding down, but that's more complicated than necessary.
http://www.cplusplus.com/reference/iostream/manipulators/setw/
0
 
LVL 37

Expert Comment

by:TommySzalapski
ID: 34947902
So it would look something like this

#include<iostream>
#include<iomanip>

const int WIDTH = 10;
const int ITERATIONS = 6; //Note: consts usually go outside of main

int main()
{
  //your code
      cout << setw(WIDTH) << num;
  //rest of your code
}

Open in new window


0
 

Author Comment

by:mustish1
ID: 34947905
ok thanks.
0

Featured Post

Never miss a deadline with monday.com

The revolutionary project management tool is here!   Plan visually with a single glance and make sure your projects get done.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

We live in a world of interfaces like the one in the title picture. VBA also allows to use interfaces which offers a lot of possibilities. This article describes how to use interfaces in VBA and how to work around their bugs.
Article by: evilrix
Looking for a way to avoid searching through large data sets for data that doesn't exist? A Bloom Filter might be what you need. This data structure is a probabilistic filter that allows you to avoid unnecessary searches when you know the data defin…
The viewer will learn how to user default arguments when defining functions. This method of defining functions will be contrasted with the non-default-argument of defining functions.
In this seventh video of the Xpdf series, we discuss and demonstrate the PDFfonts utility, which lists all the fonts used in a PDF file. It does this via a command line interface, making it suitable for use in programs, scripts, batch files — any pl…
Suggested Courses

601 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question