Eroare de compilare: main.cpp: In function 'void dfs(int)': main.cpp:13:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 13 | for(int i = 0; i<v[nod].size();i++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'void euler(int)': main.cpp:24:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for(int i = 0; i < v[nod].size(); i++) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:56:9: error: 'fcout' was not declared in this scope; did you mean 'fout'? 56 | fcout << - 1; | ^~~~~ | fout Non zero exit status: 1