Borderou de evaluare (job #471822)

Compilare: user.cpp: In function ‘int main()’: user.cpp:10:24: warning: variable ‘sum’ set but not used [-Wunused-but-set-variable] 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:9:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:16:9: warning: ‘aux’ may be used uninitialized in this function [-Wuninitialized]