## bumsfeld 413 Nearly a Posting Virtuoso

I wrote this little code to test a 2 dimensional array. Given the array array[row][col] I can find total_columns, but I am at loss to figure out total_rows.

``````// 2 D array

#include <iostream>

using namespace std;

int main()
{
int row, col, total_columns;

// two dimensional array in the form array[row][col]
int  iarray2 = { 1, 2, 3, 4, 5,
6, 7, 8, 9,10,
11,12,13,14,15 };

total_columns = sizeof(iarray2)/sizeof(int);  // result = 5
//total_rows = ??;

for(row = 0; row < 3 ; row++)
{
for(col = 0; col < total_columns; col++)
{
cout  << row << "  " << col << "  " << iarray2[row][col] << endl;
}
cout << endl;
}

// wait
cin.get();
return EXIT_SUCCESS;
}``````

## Inanna 29

Take the total size and divide it by the size of one row. :)

``````#include <iostream>

int main()
{
int row, col;
int total_columns;
int total_rows;

int  iarray2 = {
1, 2, 3, 4, 5,
6, 7, 8, 9, 10,
11,12,13,14,15
};

total_columns = sizeof(iarray2)/sizeof(int);  // result = 5
total_rows = sizeof iarray2 / sizeof iarray2; // result = 3

for(row = 0; row < total_rows; row++) {
for(col = 0; col < total_columns; col++)
std::cout<< row <<"  "<< col <<"  " << iarray2[row][col] <<'\n';

std::cout<<'\n';
}

std::cout<<"Total columns: "<< total_columns <<'\n'
<<"Total Rows: "<< total_rows <<'\n';
}``````
commented: good one, keep it up [~s.o.s~] +5
commented: Helps-[Grunt] +2
commented: Down to Earth +5

## bumsfeld 413

Thank you, makes sense! Had one of those days with a mental block!