Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:24:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for(i=0;i<v[p].size();i++) | ~^~~~~~~~~~~~ main.cpp:28:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | for(j=0;j<v[p1].size();j++) | ~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:54:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for(j=0;j<v[i].size();j++) | ~^~~~~~~~~~~~