Borderou de evaluare (job #288892)

Compilare: user.cpp: In function 'int main()': user.cpp:7:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:8:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:33:13: warning: 'y' may be used uninitialized in this function [-Wuninitialized] user.cpp:33:13: warning: 'x' may be used uninitialized in this function [-Wuninitialized]