Compilare: main.cpp: In function 'int main()': main.cpp:27:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | for(j=0;j<L[p].size();j++) | ~^~~~~~~~~~~~ main.cpp:35:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for(i=0;i<C.size();i++) | ~^~~~~~~~~