Compilare: user.cpp:21: warning: integer constant is too large for ‘long’ type user.cpp:27: warning: integer constant is too large for ‘long’ type user.cpp:30: warning: integer constant is too large for ‘long’ type user.cpp:33: warning: integer constant is too large for ‘long’ type user.cpp:35: warning: integer constant is too large for ‘long’ type user.cpp: In function ‘void read()’: user.cpp:49: warning: unused variable ‘x’ user.cpp:49: warning: unused variable ‘y’ user.cpp:45: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:48: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:51: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘int main()’: user.cpp:62: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:63: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result