Borderou de evaluare (job #468749)

Eroare de compilare: user.cpp:8:14: error: expected unqualified-id before numeric constant user.cpp: In function ‘int main()’: user.cpp:45:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:43:18: warning: unused variable ‘dr’ [-Wunused-variable] user.cpp:18:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:19:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:22:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:26:39: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]