Compilare: main.cpp: In function 'void do_fill(const std::vector<std::vector<bool> >&, std::vector<std::vector<int> >&, std::vector<comanda>&, int&)': main.cpp:20:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < harta.size(); ++i){ ~~^~~~~~~~~~~~~~ main.cpp:21:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < harta[0].size(); ++j){ ~~^~~~~~~~~~~~~~~~~ main.cpp:33:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(0 <= ln && ln < harta.size() && 0 <= cn && cn < harta[0].size() && ~~~^~~~~~~~~~~~~~ main.cpp:33:56: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(0 <= ln && ln < harta.size() && 0 <= cn && cn < harta[0].size() && ~~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'void make_arbore(const std::vector<std::vector<int> >&, std::vector<comanda>, std::vector<int>&, std::vector<std::vector<int> >&, int)': main.cpp:60:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(0 <= ln && ln < harta.size() && 0 <= cn && cn < harta[0].size() && ~~~^~~~~~~~~~~~~~ main.cpp:60:54: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(0 <= ln && ln < harta.size() && 0 <= cn && cn < harta[0].size() && ~~~^~~~~~~~~~~~~~~~~