Compilare: main.cpp: In function 'void dfs(int)': main.cpp:13:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 13 | for (int i=0; i<g[nod].size(); i++) { | ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:42:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 42 | for (int i=0; i<parcurgere.size(); i++) | ~^~~~~~~~~~~~~~~~~~