Enter a number: 7
    7     14     21     28     35     42     49     56     63     70
   77     84     91     98    105    112    119    126    133    140
  147    154    161    168    175    182    189    196    203    210

#include<iostream>
#include<iomanip>    // For setw()
#include<conio.h>    // For getch()
using namespace std;
int main()
{
    int number;
    cout << "Enter the number whose table you want: ";
    cin >> number;
    int maxrows; int maxcols;
    cout << "nEnter the number of rows you want: "; cin >> maxrows;
    cout << "nEnter the number of columns : ";
    cin >> maxcols;
    int pos=1; //starting position

    while( pos<=maxrows*maxcols )
    {
        for(int col=1; col<=maxcols; col++, pos++)
        {
            cout<< setw(6) << pos*number << "  ";
        }
        cout<<"n";
    }
    getch();
}

#include<iostream>
#include<iomanip>
#include<conio.h>
using namespace std;
int main()
{
    int number;
    cout << "Enter the number whose table you want: ";
    cin >> number;
    int maxrows; int maxcols;
    cout << "nEnter the number of rows you want: "; cin >> maxrows;
    cout << "nEnter the number of columns : "; cin >> maxcols;
    int row; int col; //Current row and current col

    for(int pos=1; pos<=(maxrows*maxcols); pos++)
    {
        cout << setw(6) <<number*pos << "  ";
        if((pos%maxcols)==0)
        {
          cout << "n";
        }

    }
    getch();
}

#include<iostream>
#include<iomanip>
#include<conio.h>
using namespace std;
int main()
{
    int number;
    cout << "Enter the number whose table you want: ";
    cin >> number;
    int maxrows; int maxcols;
    cout << "nEnter the number of rows you want: "; cin >> maxrows;
    cout << "n Enter the number of columns : "; cin >> maxcols;

    for(int row=0; row<=(maxrows-1); row++)
    {
        for(int col=1; col<=maxcols; col++)
        {
            cout << setw(6) << number*(col + row*maxcols); // (col + row*maxcols) represent the current position
        }
        cout << "n";
    }
    getch();
}

#include<iostream>
#include<iomanip>    // For setw()
#include<conio.h>    // For getch()
using namespace std;
int main()
{
    int number;
    cout << "Enter the number whose table you want: ";
    cin >> number;
    int maxrows; int maxcols;
    cout << "nEnter the number of rows you want: "; cin >> maxrows;
    cout << "n Enter the number of columns : ";
    cin >> maxcols;



    for(int row=1; row<=maxrows; row++ )
    {
        cout << "n";
        for(int col=0; col<maxcols; col++)
        {
            cout << setw(6)<< number*(row + maxrows*col) << "  ";
        }


    }
    getch();
}

for(int row=0; row<=(maxrows-1); row++)

for(int row = 0; row <= maxrows - 1; row++)

for(int i=0; i < N; ++i) { /* do something */ }

for(int row=0; row<=(maxrows-1); row++) {
    for(int col=1; col<=maxcols; col++) {
        // do stuff
    }
}

int accum = number;
for(unsigned row = 0; row < maxrows; ++row) {
    for(unsigned col = 0; col < maxcols; ++col) {
        std::cout << std::setw(6) << accum;
        accum += number;
    }
    std::cout << "n";
}

#include <iostream>
#include <iomanip>

int main()
{
    int number;
    std::cout << "Enter the number whose table you want: ";
    std::cin >> number;
    unsigned maxrows;
    unsigned maxcols;
    std::cout << "nEnter the number of rows you want: ";
    std::cin >> maxrows;
    std::cout << "nEnter the number of columns : ";
    std::cin >> maxcols;

    const int colincr = number * maxrows;
    const int rowdecr = number * (maxrows * maxcols - 1);
    int accum = number;
    for(unsigned row = 0; row < maxrows; ++row) {
        for(unsigned col = 0; col < maxcols; ++col) {
            std::cout << std::setw(6) << accum;
            accum += colincr;
        }
        accum -= rowdecr;
        std::cout << 'n';
    }
}

Enter the number whose table you want: 7

Enter the number of rows you want: 5

Enter the number of columns : 8
     7    42    77   112   147   182   217   252
    14    49    84   119   154   189   224   259
    21    56    91   126   161   196   231   266
    28    63    98   133   168   203   238   273
    35    70   105   140   175   210   245   280

#include <iostream>
#include <iomanip>

int main() {

    int num;
    std::cout << "Enter no: ";
    std::cin >> num;

    unsigned int row = 20, col = 10;

    int sum = 0;
    num < 0

    for( unsigned int i = 0; i < row; ++i) {

        for( unsigned int j = 0; j < col; ++j) {
            sum += num;
            std::cout << std::setw(6) << sum;
        }
        std::cout << 'n';
    }

    return 0;
}

for (int i = 0; i < n; i++) {
    …
}

for(int row=0; row<=(maxrows-1); row++)

int n = 0;
for (int row = 0; row < maxrows; row++) {
    for (int col = 0; col < maxcols; col++) {
        std::cout << std::setw(7) << (n += multiple);
    }
    std::cout << "n";
}

int stride = maxrows * multiple;
for (int row = 1; row <= maxrows; row++) {
    for (int col = 1, n = row * multiple; col <= maxcols; col++, n += stride) {
        std::cout << std::setw(7) << n;
    }
    std::cout << "n";
}

#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
    int number=0,i,rows,col;
    cout << "Enter the number,rows and columns: ";
    cin >> number>>rows>>col;
    for(i=1;i<=col*rows;i++)
        {
            if(i%rows==0){
                cout<<setw(5)<<number*i<<"n";
            }
            else{
                cout<<setw(5)<<number*i;
            }
        }
}
I find this code easy to understand as first year student!!

date=1 ; while(date <= monthLength)
         printf("%2d%c",date++,(date-offset) % 7 ? ' ' : 'n');