Borderou de evaluare (job #164554)

Compilare: user.cpp: In function ‘int main()’: user.cpp:10:35: warning: variable ‘ok’ set but not used [-Wunused-but-set-variable] user.cpp:10:43: warning: unused variable ‘f’ [-Wunused-variable] user.cpp:8:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:9:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:11:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]