Borderou de evaluare (job #10017)

Compilare: user.cpp: In function 'int main()': user.cpp:9:14: warning: unused variable 'u' [-Wunused-variable] user.cpp:9:18: warning: unused variable 'i' [-Wunused-variable] user.cpp:7:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:8:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:10:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]