Eroare de compilare: user.cpp:38:3: warning: no newline at end of file user.cpp: In function 'void dfs(int)': user.cpp:10: warning: comparison between signed and unsigned integer expressions user.cpp:12: error: name lookup of 'j' changed for new ISO 'for' scoping user.cpp:10: error: using obsolete binding at 'j' user.cpp: In function 'int main()': user.cpp:24: error: 'x' was not declared in this scope user.cpp:24: error: 'y' was not declared in this scope user.cpp:30: warning: suggest parentheses around assignment used as truth value