Compilare: main.cpp: In function 'void BFS1(std::vector<int>&)': main.cpp:17:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | for(int i=0;i<st.size();i++){ | ~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:62:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | for(int i=0;i<rasp.size();i++){ | ~^~~~~~~~~~~~