Compilare: user.cpp: In function ‘int cmp(int, int)’: user.cpp:7: warning: left-hand operand of comma has no effect user.cpp: In function ‘int main()’: user.cpp:14: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:15: 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:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:16: warning: ‘poz’ may be used uninitialized in this function user.cpp:16: warning: ‘aux’ may be used uninitialized in this function user.cpp:16: warning: ‘ult’ may be used uninitialized in this function