Eroare de compilare: main.cpp:14:1: error: 'vector' does not name a type vector<int> v; ^~~~~~ main.cpp: In function 'void check_path()': main.cpp:26:28: error: 'v' was not declared in this scope for (size_t i = 0; i < v.size() - 1; ++i) ^ main.cpp:37:21: error: 'v' was not declared in this scope if (exists_edge(v[v.size() - 1], v[0])) ^ main.cpp: In function 'int main()': main.cpp:71:9: error: 'v' was not declared in this scope v.push_back(i); ^ main.cpp:78:29: error: 'v' was not declared in this scope while (next_permutation(v.begin(), v.end())); ^ Non zero exit status: 1