Compilare: user.cpp: In function ‘void Solve()’: user.cpp:12: warning: comparison between signed and unsigned integer expressions user.cpp:15: warning: array subscript has type ‘char’ user.cpp:17: warning: array subscript has type ‘char’ user.cpp: In function ‘void Read()’: user.cpp:21: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘void Print()’: user.cpp:33: warning: array subscript has type ‘char’ user.cpp:33: warning: array subscript has type ‘char’ user.cpp:34: warning: array subscript has type ‘char’ user.cpp:27: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result