Compilare: main.cpp: In function 'void DFS(int, int)': main.cpp:21:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for(int x=0; x<v[nod].size(); ++x) | ~^~~~~~~~~~~~~~ main.cpp:28:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | for(int x=0; x<v[nod].size(); ++x) | ~^~~~~~~~~~~~~~ main.cpp: In function 'void calculeaza(int, int)': main.cpp:58:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | for(int x=0; x<v[nod].size(); ++x) | ~^~~~~~~~~~~~~~ main.cpp:73:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 73 | for(int x=0; x<v[nod].size(); ++x) | ~^~~~~~~~~~~~~~ main.cpp: In function 'void change_root(int, int)': main.cpp:83:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 83 | for(int x=0; x<v[nod].size(); ++x) | ~^~~~~~~~~~~~~~ main.cpp:89:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 89 | for(int x=0; x<v[nod].size(); ++x) | ~^~~~~~~~~~~~~~