#include <iostream>
#include <vector>
 
using std::vector;
using std::string;
using MAP_GRID = vector<vector<string>>;
using namespace std;
 
void print_terrain(MAP_GRID);
void set_position(MAP_GRID&, int, int, string);
MAP_GRID create_terrain(int);
 
int main()
{
    MAP_GRID map = create_terrain(10);
    print_terrain(map);
    set_position(map, 5, 5, "[x]");
    cout << "\n\n";
    print_terrain(map);
    return 0;
}
 
 
MAP_GRID create_terrain(int size)
{
    MAP_GRID map;
 
    for (int i = 0; i < size; ++i) {
        map.emplace_back(vector<string>());
        for (int j = 0; j < size; ++j) {
            map[i].emplace_back("[ ]");
        }
    }
 
    return map;
}
 
void print_terrain(MAP_GRID map)
{
    for (int i = 0; i < map.size(); ++i) {
        for (int j = 0; j < map[i].size(); ++j) {
            std::cout.width(4);
            std::cout << map[i][j].c_str();
        }
        std::cout << std::endl;
    }
}
 
void set_position(MAP_GRID& map, int x, int y, string object)
{
    if (map[x][y] != "[ ]")
        std::cout << "\nPosition is occupied" << std::endl;
    map[x][y] = object; //temporary change
}

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