Eroare de compilare: user.cpp:5:1: error: ‘vector’ does not name a type vector<int> adj[100001]; ^ user.cpp: In function ‘void DFS(int)’: user.cpp:11:5: error: ‘stack’ was not declared in this scope stack<int> S; ^ user.cpp:11:11: error: expected primary-expression before ‘int’ stack<int> S; ^ user.cpp:11:11: error: expected ‘;’ before ‘int’ user.cpp:13:5: error: ‘S’ was not declared in this scope S.push(start); ^ user.cpp:17:23: error: ‘s’ was not declared in this scope int current = s.top(); s.pop(); ^ user.cpp:21:30: error: ‘adj’ was not declared in this scope for(auto child : adj[current]) ^ user.cpp: In function ‘int main()’: user.cpp:40:28: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘int’ [-Wformat=] scanf("%d %d", u, v); ^ user.cpp:40:28: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘int’ [-Wformat=] user.cpp:42:9: error: ‘adj’ was not declared in this scope adj[u].push_back(v); ^ user.cpp:33:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dfs.in", "r", stdin); ^ user.cpp:34:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dfs.out", "w", stdout); ^ user.cpp:36:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &vertices, &edges); ^ user.cpp:40:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", u, v); ^