Compilare: main.cpp: In function 'void dfs(int)': main.cpp:31:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for(int i = 0; i < G[node].size(); i++) { | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:64:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 64 | for(int i = 0; i < ciclu.size() - 1; i++) { | ~~^~~~~~~~~~~~~~~~~~