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arrays proplem

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Join Date: Dec 2007

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rajatC

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Re: arrays proplem

#11

Dec 30th, 2007

 Help with Code Tags 
 c++ Syntax (Toggle Plain Text) 
for(int i=0 ; i<50 ; i++)
{cout<<a[i]<<" ";
if(i%10 == 0)
cout<<endl;
}
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..

Last edited by rajatC; Dec 30th, 2007 at 5:19 am.

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Join Date: Dec 2007

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rajatC

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Re: arrays proplem

#12

Dec 30th, 2007

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

 Help with Code Tags 
 c++ Syntax (Toggle Plain Text) 
for(int i=1 ; i<51 ; i++)
    {
 
            cout<<setw(3)<<a[i-1]<<" ";
            if(i%10 == 0)
            cout<<endl;
    }
for(int i=1 ; i<51 ; i++)
    {
            
            cout<<setw(3)<<a[i-1]<<" ";
            if(i%10 == 0)
            cout<<endl;
    }

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Join Date: Mar 2005

Posts: 464

Reputation: invisal is a jewel in the rough

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invisal

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Re: arrays proplem

#13

Dec 30th, 2007

•

Originally Posted by rajatC

Help with Code Tags

c++ Syntax (Toggle Plain Text)
for(int i=0 ; i<50 ; i++)
{cout<<a[i]<<" ";
if(i%10 == 0)
cout<<endl;
}
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:

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
if( (i+1)%10 == 0)
if( (i+1)%10 == 0)

Because i was started from 0

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Join Date: Dec 2007

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Reputation: bis student is an unknown quantity at this point

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bis student bis student is offline

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Re: arrays proplem

#14

Dec 30th, 2007

this is my answer ; is it right ?

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
# 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;
}
# 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;
}

there are always hope

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Join Date: Nov 2007

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superjacent superjacent is offline

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Re: arrays proplem

#15

Dec 30th, 2007

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

 Help with Code Tags 
 cpp Syntax (Toggle Plain Text) 
if (i % 10 == 0)
   cout << endl;
cout << alpha[i] << "\t";
if (i % 10 == 0)
   cout << endl;
cout << alpha[i] << "\t";

Steve
Prime 357 and Improve memory and Steve's Stuff

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Join Date: Nov 2007

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Re: arrays proplem

#16

Dec 30th, 2007

•

Originally Posted by bis student

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.

Steve
Prime 357 and Improve memory and Steve's Stuff

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Join Date: Mar 2005

Posts: 464

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invisal

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Re: arrays proplem

#17

Dec 30th, 2007

Help with Code Tags

(Toggle Plain Text)

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.

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
for (int i=0; i<50; i++) {
   cout << alpha[i] << "  ";
    if ((i+1) % 10 == 0)
        cout << endl;
}
for (int i=0; i<50; i++) {
   cout << alpha[i] << "  ";
    if ((i+1) % 10 == 0)
        cout << endl;
}

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
for (int i=1; i<51; i++) {
   cout << alpha[i-1] << "  ";
    if (i % 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

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
for (int i=0; i<50; ) {
   cout << alpha[i] << "  ";
    if (++i % 10 == 0)
        cout << endl;
}
for (int i=0; i<50; ) {
   cout << alpha[i] << "  ";
    if (++i % 10 == 0)
        cout << endl;
}