Diagrams By loops

#include <iostream.h>

int main() {
    int i=0;
    int j=0;

    for (i;i<9;i++){        // outer loop - for rows
        for (j=0;j<=i;j++){ // inner for loop - for coloumns
            cout << "*";
        }  // end for loop - inner
        cout << endl;
    } // end for loop - outer

return 0;
}