Borderou de evaluare (job #68610)

Compilare: user.cpp: In function ‘int main()’: user.cpp:9:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:10:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:42:55: warning: ‘y’ may be used uninitialized in this function [-Wuninitialized] user.cpp:42:47: warning: ‘x’ may be used uninitialized in this function [-Wuninitialized] user.cpp:23:28: warning: ‘poz’ may be used uninitialized in this function [-Wuninitialized]