Compilare: main.cpp: In function 'void MinimumVertexCover(int, bool, int)': main.cpp:27:9: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else] 27 | if(x!=tata) | ^ main.cpp: In function 'int main()': main.cpp:40:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for(i=2;i<S.size();i++) | ~^~~~~~~~~