Compilare: main.cpp: In function 'void dfs(int)': main.cpp:20:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for(int i=0;i<v[nod].size();i++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:105:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<bongos>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 105 | for(i=0;i<v1.size();i++) | ~^~~~~~~~~~ main.cpp:115:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<bongos>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 115 | for(i=0;i<v2.size();i++) | ~^~~~~~~~~~