Converting array of bool to array of int

These two arrays

array<array<bool,19>,19> tablero

and

array<array<int,19>,19> lab;

have different types and there is no implicit conversion from one array to another.

You can either write loops yourself or use some standard algorithms as it is shown in this demonstrative program

#include <iostream>
#include <array>
#include <algorithm>
#include <numeric>

int main() 
{

    std::array<std::array<bool,19>,19> tablero; 
    std::array<std::array<int,19>,19> tablero1;

    std::accumulate( tablero.begin(), tablero.end(), tablero1.begin(),
                     []( auto it, const auto &a ) 
                     { 
                        return std::copy( a.begin(), a.end(), it->begin() ), ++it;
                     } );

    return 0;
}

Your compiler has to support specifier auto in lambda expressions that the code would compile.

Or the same program but with some output

#include <iostream>
#include <iomanip>
#include <array>
#include <algorithm>
#include <numeric>

int main() 
{
    const size_t N = 3;
    std::array<std::array<bool, N>, N> tablero = 
    {
        {
            { true, false, false },
            { false, true, false },
            { false, false, true }
        }
    }; 
    std::array<std::array<int, N>, N> tablero1;

    std::accumulate( tablero.begin(), tablero.end(), tablero1.begin(),
                     []( auto it, const auto &a ) 
                     { 
                        return std::copy( a.begin(), a.end(),it->begin() ), ++it;
                     } );

    for ( const auto &a : tablero )
    {
        for ( auto b : a ) std::cout << std::boolalpha << b << ' ';
        std::cout << std::endl;
    }

    std::cout << std::endl;

    for ( const auto &a : tablero1 )
    {
        for ( auto x : a ) std::cout << x << ' ';
        std::cout << std::endl;
    }

    return 0;
}


true false false 
false true false 
false false true 

1 0 0 
0 1 0 
0 0 1 

Here is how you can assign a 2D boolean array to a 2D integer array (of size 19x19 as in your case):

for(int i=0; i<19; i++) {
    for(int j=0; j<19; j++) {
       lab[i][j] = (tablero[i][j])?1:0;
    }
}

Please note the use of ternary operator in the assignment statement. If the

tablero[i][j] 

is true then

lab[i][j] will be 1, otherwise it will be 0.

Of course you may assign different integer values as well.

Hope that helps!