Compilare: main.cpp: In function 'int getPositionOfFirstOut(const std::vector<Position>&)': main.cpp:27:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < queue.size(); i++) { ~~^~~~~~~~~~~~~~ main.cpp: In function 'Position order(const std::vector<int>&, int)': main.cpp:45:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < c.size(); i++) { ~~^~~~~~~~~~