Compilare: user.cpp: In constructor ‘pt::pt(int, int, int, int)’: user.cpp:20: warning: array subscript has type ‘char’ user.cpp:20: warning: array subscript has type ‘char’ user.cpp:20: warning: array subscript has type ‘char’ user.cpp:21: warning: array subscript has type ‘char’ user.cpp:21: warning: array subscript has type ‘char’ user.cpp:21: warning: array subscript has type ‘char’ user.cpp: In function ‘bool ts(pt)’: user.cpp:60: warning: array subscript has type ‘char’ user.cpp:60: warning: array subscript has type ‘char’ user.cpp:60: warning: array subscript has type ‘char’ user.cpp: In function ‘int main()’: user.cpp:79: warning: array subscript has type ‘char’ user.cpp:79: warning: array subscript has type ‘char’ user.cpp:79: warning: array subscript has type ‘char’ user.cpp:64: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:65: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:67: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:72: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result