Mod_1

goal : slowly change existed code example for learning

setw

fill width 6 blank box %%%%%% , %%%%HI

#include <iostream>
#include <iomanip>
using namespace std;

int main() {

const int columnLimit = 4;
const int width = 6;
int row;
int column;

for ( row = 1; row <= 10; row ++)
{
    for ( column =1 ; column <= columnLimit; column++ ){
        // modify this.
        if ( row * column % 3 == 0 )//3n -> change to '@'
        {
            cout << setw(width) << '@';
        }
        else
            cout << setw(width) << row * column;
    }
    cout << std::endl;
}
cin.get();

return 0;
}

result: