2D array in C++ 11 with std::array (note the brackets).

main.cpp

#include <iostream>
#include <array>

int main(){
    //col, row
    std::array<std::array<int, 10>, 10> mymap{{
        {{1,2,3,4,5,6,7,8,9,0}},
        {{1,2,3,4,5,6,7,8,9,0}},
        {{1,2,3,4,5,6,7,8,9,0}},
        {{1,2,3,4,5,6,7,8,9,0}},
        {{1,2,3,4,5,6,7,8,9,0}},
        {{1,2,3,4,5,6,7,8,9,0}},
        {{1,2,3,4,5,6,7,8,9,0}},
        {{1,2,3,4,5,6,7,8,9,0}},
        {{1,2,3,4,5,6,7,8,9,0}},
        {{1,2,3,4,5,6,7,8,9,0}}
        }};
    for(auto& col: mymap){
            for(auto& row: col){
                std::cout << row << " ";
            }
            std::cout << "\n";
    }
    return 0;
}