Compilare: main.cpp: In function 'void dfs(int)': main.cpp:16:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 16 | for (int i = 0;i < v[nod].size();i++) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void dfst(int)': main.cpp:25:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | for (int i = 0;i < vt[nod].size();i++) | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:52:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 52 | for (int i = 0;i < vr.size();i++) | ~~^~~~~~~~~~~ main.cpp:54:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for (int j = i + 1;j < vr.size();j++) | ~~^~~~~~~~~~~