Eroare de compilare: user.cpp: In function ‘void Read()’: user.cpp:24: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘void DFS(int, int)’: user.cpp:38: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void Solve()’: user.cpp:52: error: ‘x’ was not declared in this scope