Eroare de compilare: user.cpp:2:18: error: cstdin: No such file or directory user.cpp:10: error: expected `)' before ';' token user.cpp:10: error: expected initializer before ')' token user.cpp: In function 'int dfs(int)': user.cpp:22: error: cannot convert 'nod' to 'nod*' in initialization user.cpp:28: error: cannot convert 'nod' to 'nod*' for argument '1' to 'int add(nod*)' user.cpp: In function 'int write()': user.cpp:35: error: no match for 'operator!=' in 'q != 0' user.cpp:37: error: base operand of '->' has non-pointer type 'nod' user.cpp:37: error: 'printf' was not declared in this scope user.cpp:38: error: base operand of '->' has non-pointer type 'nod' user.cpp: In function 'int main()': user.cpp:45: error: 'stdin' was not declared in this scope user.cpp:45: error: 'freopen' was not declared in this scope user.cpp:46: error: 'stdout' was not declared in this scope user.cpp:49: error: 'scanf' was not declared in this scope user.cpp:53: error: invalid conversion from 'int' to 'nod*' user.cpp:10: error: too many arguments to function 'int add(nod*)' user.cpp:53: error: at this point in file user.cpp:58: error: 'visit' was not declared in this scope