Borderou de evaluare (job #299391)

Compilare: user.cpp: In function 'int main()': user.cpp:7:16: warning: unused variable 'st' [-Wunused-variable] user.cpp:7:20: warning: unused variable 'dr' [-Wunused-variable] user.cpp:7:29: warning: unused variable 'mij' [-Wunused-variable] user.cpp:7:43: warning: unused variable 'nr2' [-Wunused-variable] user.cpp:8:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:9:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:10:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]