Compilare: user.cpp: In function ‘int main()’: user.cpp:27: warning: array subscript has type ‘char’ user.cpp:28: warning: array subscript has type ‘char’ user.cpp:35: warning: array subscript has type ‘char’ user.cpp:36: warning: array subscript has type ‘char’ user.cpp:46: warning: array subscript has type ‘char’ user.cpp:48: warning: array subscript has type ‘char’ user.cpp:50: warning: array subscript has type ‘char’ user.cpp:51: warning: array subscript has type ‘char’ user.cpp:54: warning: array subscript has type ‘char’ user.cpp:57: warning: array subscript has type ‘char’ user.cpp:44: warning: unused variable ‘x’ user.cpp:44: warning: unused variable ‘y’ user.cpp:20: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:21: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:23: warning: ignoring return value of ‘char* fgets(char*, int, 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:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result