Eroare de compilare: user.cpp: In function ‘void read()’: user.cpp:24:9: error: ‘g’ was not declared in this scope g[x].push_back(y); ^ user.cpp: In function ‘void dfs(int, int)’: user.cpp:47:5: error: ‘niv’ was not declared in this scope niv[nod] = niv[tata] + 1; ^ user.cpp:57:13: error: expected ‘;’ before ‘dfs’ dfs(*it,nod); ^ user.cpp: In function ‘void rezolvare()’: user.cpp:76:5: error: ‘niv’ was not declared in this scope niv[0] = -1; ^ user.cpp: In function ‘void afisare()’: user.cpp:89:36: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘std::vector<std::vector<int> >::size_type {aka long unsigned int}’ [-Wformat=] printf("%d\n",componente.size()); ^ user.cpp:91:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < componente.size(); i++) ^ user.cpp:93:70: error: expected primary-expression before ‘)’ token for(vector <int >:: iterator it = componente[i].begin() ; it+) ^ user.cpp:93:70: error: expected ‘;’ before ‘)’ token user.cpp:95:60: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘std::vector<int>::size_type {aka long unsigned int}’ [-Wformat=] printf(" nr de elemente %d \n",componente[i].size()); ^ user.cpp: In function ‘void read()’: user.cpp:17:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("biconexe.in","r",stdin); ^ user.cpp:18:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("biconexe.out","w",stdout); ^ user.cpp:19:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&n,&m); ^ user.cpp:23:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&x,&y); ^