[Solved] Pattern by means of function

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We, beginners, should help each other.:)

Here you are. The code is written in C++. So you need to investigate it and rewrite it in C yourself.

#include <iostream>

int main() 
{
    while ( true )
    {
        std::cout << "Input the number of elements : ";

        unsigned int n;

        if ( not ( std::cin >> n ) or ( n == 0 ) ) break;

        std::cout << "Input the size of each element : ";

        unsigned int m;

        if ( not ( std::cin >> m ) or ( m == 0 ) ) break;

        std::cout << '\n';

        for ( unsigned int i = 0; i < m + 2; i++  )
        {
            char c1 = i == 0 || i == m + 1 ? '+' : '|';
            char c2 = i == 0 || i == m + 1 ? '-' : ' ';

            for ( unsigned int j = 0; j < n + m * ( n - 1 ); j++ )
            {
                std::cout << ( j % (m + 1) == 0 ? c1 : c2 );  
            }
            std::cout << '\n';
        }

        std::cout << std::endl;
    }

    return 0;
}

The program output might look the following way

Input the number of elements : 10
Input the size of each element : 3

+---+---+---+---+---+---+---+---+---+
|   |   |   |   |   |   |   |   |   |
|   |   |   |   |   |   |   |   |   |
|   |   |   |   |   |   |   |   |   |
+---+---+---+---+---+---+---+---+---+

Input the number of elements : 0

solved Pattern by means of function