Borderou de evaluare (job #36718)

Compilare: user.cpp: In function ‘int main()’: user.cpp:24:17: warning: statement has no effect [-Wunused-value] user.cpp:5:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:6:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:8:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:27:9: warning: ‘rez’ may be used uninitialized in this function [-Wuninitialized]