Borderou de evaluare (job #400939)

Compilare: user.cpp: In function ‘int main()’: user.cpp:8:21: warning: unused variable ‘f’ [-Wunused-variable] user.cpp:8:26: warning: unused variable ‘i’ [-Wunused-variable] user.cpp:8:29: warning: unused variable ‘s’ [-Wunused-variable] user.cpp:6:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:7:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]