Eroare de compilare: user.cpp: In function ‘void dfs1(int)’: user.cpp:11:2: error: ‘viz’ was not declared in this scope viz[node] = 1; ^ user.cpp: In function ‘void dfs2(int, int)’: user.cpp:21:2: error: ‘viz’ was not declared in this scope viz[node] = 0; ^ user.cpp: In function ‘int main(int, const char**)’: user.cpp:40:7: error: ‘viz’ was not declared in this scope if (viz[i] == 0) ^ user.cpp:45:7: error: ‘viz’ was not declared in this scope if (viz[x]) ^