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- - arrays proplem (http://www.daniweb.com/forums/thread102743.html)

rajatC

Dec 30th, 2007 5:19 am

Re: arrays proplem

for(int i=0 ; i<50 ; i++)

{cout<<a[i]<<" ";

if(i%10 == 0)

cout<<endl;

}

you had to use cout<<endl if i is divisble by 10 i.e. 10 elements has been printed..

rajatC

Dec 30th, 2007 5:21 am

Re: arrays proplem

it will print 11 elements in first line and 10 in all others...
to be more accurate use...

for(int i=1 ; i<51 ; i++)

    {

            

            cout<<setw(3)<<a[i-1]<<" ";

            if(i%10 == 0)

            cout<<endl;

    }

invisal

Dec 30th, 2007 6:10 am

Re: arrays proplem

Quote:

Originally Posted by rajatC (Post 500542)

for(int i=0 ; i<50 ; i++)

{cout<<a[i]<<" ";

if(i%10 == 0)

cout<<endl;

}

you had to use cout<<endl if i is divisble by 10 i.e. 10 elements has been printed..

It should be:

if( (i+1)%10 == 0)

Because i was started from 0

bis student

Dec 30th, 2007 6:49 am

Re: arrays proplem

this is my answer ; is it right ?

# include <iostream>

#include <iomanip >

using namespace std ;

int main ()

{

        

int alpha[50];

for (int i=0;i<25;i++)

{

alpha[i]=i*i;

cout<<alpha[i]<<" ";

}

for(int i=25;i<50;i++)

{

alpha[i]=3*i;

cout<<alpha[i]<<" ";

}

for(int i=1 ; i<51 ; i++)    {                           

    {

            

            cout<<setw(3)<<alpha[i-1]<<" ";

            if( (i+1)%10 == 0)

            cout<<endl;

    }

    

}



return 0;

}

superjacent

Dec 30th, 2007 6:52 am

Re: arrays proplem

This works if you don't mind the newline right from the get go.

if (i % 10 == 0)

   cout << endl;

cout << alpha[i] << "\t";

superjacent

Dec 30th, 2007 7:06 am

Re: arrays proplem

Quote:

Originally Posted by bis student (Post 500564)

this is my answer ; is it right ?

I'd guess that you should be able to determine if it's right or not and I'm suspecting you're guessing it's not.

I'd suggest removing the

cout

statements from the

for

loops of the assignment statements, they just print 25 across the line, which is not what you want.

I removed those cout statements and your code is nearly there. The first line only prints 9 numbers, the rest print 10.

invisal

Dec 30th, 2007 7:15 am

Re: arrays proplem

for(int i=1 ; i<51 ; i++)    {                           

    {

            

            cout<<setw(3)<<alpha[i-1]<<" ";

            if( (i+1)%10 == 0)

            cout<<endl;

    }

    

}

Double open brace and double close brace?

There are 2 ways to choose to print 10 numbers for each line.

for (int i=0; i<50; i++) {

   cout << alpha[i] << "  ";

    if ((i+1) % 10 == 0)

        cout << endl;

}

for (int i=1; i<51; i++) {

   cout << alpha[i-1] << "  ";

    if (i % 10 == 0)

        cout << endl;

}

This one also work too

for (int i=0; i<50; ) {

   cout << alpha[i] << "  ";

    if (++i % 10 == 0)

        cout << endl;

}

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