Borderou de evaluare (job #418419)

Compilare: user.cpp: In function ‘int main()’: user.cpp:18:34: warning: unused variable ‘grupa’ [-Wunused-variable] user.cpp:18:41: warning: unused variable ‘nr’ [-Wunused-variable] user.cpp:16:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:17:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:19:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:21:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:22:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:33:10: warning: ‘poz’ may be used uninitialized in this function [-Wuninitialized]