Thread: Help With Arrays

/*I want to load arrays and display arrays that will have numbers 1-25 in this format

1 2 3 4 5
6 7 8 9 10
11 12 and so on...

i have got 2 functions
1st one will load arrays n second one will display */

Code:

 

void loadArray() 
{ 
int r, c, cnt=1; 

for( r=0; r<5; r++ ) 
for( c=0; c<5; c++ ) 
data[r][c] = cnt++; 
} 

void displayArray( ) 
{ 
int r, c, temp; 

    cout << "The 5 x 5 2D array:\n\n"; 

    for (r=0;r<5;r++) 
   { 
       for(c=0;c<5;c++) 
       { 
        cout << " " << data[r][c]; 
       } 
   } 

displayArray(); 
getchar(); 

pause(); 
}

//i want to display arrays when ever i call func DisplayArrays();

Well, displayArray is recursive.. with no sign of stopping. Therefore, if you call it once itt'l continue to output the data... forever.

so tell me wat to do
n u didnt actually answere my question witch was
how would i display the array in 5x5 format

Code:

void displayArray( ) 
{ 
int r, c, temp; 

    cout << "The 5 x 5 2D array:\n\n"; 

    for (r=0;r<5;r++) 
   { 
       for(c=0;c<5;c++) 
       { 
        cout << " " << data[r][c]; 
       }
        cout << endl;
   } 

getchar(); 

pause(); 
}

Ooops, sorry about that There ya go

Is the sumRow function supposed to output the sum of a row, or swap elements in that row?

To output the array backwards just do

for (int i = 4; i >= 0; i--)
{
for (int ii = 4; ii >= 0; ii--)
{
cout << data[i][ii];
}
cout << endl;
}

i can seem to get it to work
my
int csum[5]; // it is global
and it is giving me the same error when i tried with all those different methods.

if csum is a global array of 5 integers each holding the sum of a row then try this instead
csum[row]=csum[row]+data[row,c];

here is the code:

Code:

void sumRows( )
{
	int	r, c, row;
	
	cout << "Enter row number:\t ";
	cin  >> row;

	for (r=0;r<5;r++)
	{
		for(c=0;c<5;c++)
		{
		csum[row]=csum[row]+data[r,c];
		}
	}
	cout << "\n\nSwapping done:\n";
	displayArray();
}

here is the error promped by CODEWARrior
Error : illegal implicit conversion from 'int *' to
'int'
!U1_A4_2.CPP line 193 csum[row]=csum[row]+data[r,c];

it gave me the same error when i tried
csum[row]=csum[row]+data[row,c];

and my csum is an array ie
csum[5] // it is global