Compilare: user.cpp: In function ‘int main()’: user.cpp:29: warning: left-hand operand of comma has no effect user.cpp:30: warning: left-hand operand of comma has no effect user.cpp:15: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:16: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘int min(int, int)’: user.cpp:12: warning: control reaches end of non-void function user.cpp: In function ‘int max(int, int)’: user.cpp:7: warning: control reaches end of non-void function