Compilare: user.cpp: In function ‘int main()’: user.cpp:71: warning: array subscript has type ‘char’ user.cpp:72: warning: array subscript has type ‘char’ user.cpp:73: warning: array subscript has type ‘char’ user.cpp:93: warning: array subscript has type ‘char’ user.cpp:98: warning: array subscript has type ‘char’ user.cpp:50: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:51: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:53: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:54: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:61: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:62: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result