Compilare: main.cpp: In function 'void starterfinder(std::vector<int>&, const std::vector<int>&, std::queue<int>&)': main.cpp:10:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 10 | for(int i=1;i<ent.size();i++) | ~^~~~~~~~~~~ main.cpp: In function 'int bfs(int, std::vector<int>&, std::vector<std::vector<int> >&, std::vector<bool>&, std::vector<int>&)': main.cpp:29:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for(int i=0;i<v[cur].size();i++) | ~^~~~~~~~~~~~~~ main.cpp:45:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | for(int i=1;i<maxval.size();i++) | ~^~~~~~~~~~~~~~