Eroare de compilare: user.cpp: In function ‘int dfs(int)’: user.cpp:36: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int find_path()’: user.cpp:63: error: ‘memset’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:153: error: ‘stdin’ was not declared in this scope user.cpp:153: error: ‘freopen’ was not declared in this scope user.cpp:157: error: ‘stdout’ was not declared in this scope