Compilare: main.cpp: In function 'void dfs(int)': main.cpp:24:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for (int i = 0; i < vecini[varf].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:123:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 123 | for (int i = 0; i < de_afisat.size(); i++) | ~~^~~~~~~~~~~~~~~~~~