Eroare de compilare: user.c:1:17: stdio: No such file or directory user.c:2: error: syntax error before "namespace" user.c:2: warning: type defaults to `int' in declaration of `std' user.c:2: warning: data definition has no type or storage class user.c:3: error: `new' undeclared here (not in a function) user.c:3: error: syntax error before "int" user.c: In function `dfs': user.c:7: error: `for' loop initial declaration used outside C99 mode user.c:7: error: `n' undeclared (first use in this function) user.c:7: error: (Each undeclared identifier is reported only once user.c:7: error: for each function it appears in.) user.c:8: error: `viz' undeclared (first use in this function) user.c:11: error: `con' undeclared (first use in this function) user.c: In function `krus': user.c:23: error: `c' undeclared (first use in this function) user.c:30: error: `qwe' undeclared (first use in this function) user.c:30: error: `nrcrt' undeclared (first use in this function) user.c: At top level: user.c:38: warning: return type of `main' is not `int' user.c: In function `main': user.c:39: warning: implicit declaration of function `freopen' user.c:39: error: `stdin' undeclared (first use in this function) user.c:40: error: `stdout' undeclared (first use in this function) user.c:42: warning: implicit declaration of function `scanf' user.c:42: error: `n' undeclared (first use in this function)