Compilare: main.cpp: In function 'int canVisitAllNodes(std::vector<std::vector<int> >&, int, int, std::vector<int>&)': main.cpp:34:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for (int i = 0; i < beer.size(); i++) { | ~~^~~~~~~~~~~~~ main.cpp:38:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | if (count == beer.size()) | ~~~~~~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:72:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 72 | for (int i = 0; i < noAccess.size(); i++) | ~~^~~~~~~~~~~~~~~~~