Borderou de evaluare (job #119731)

Compilare: user.cpp: In function ‘int main()’: user.cpp:10:7: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] user.cpp:5:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:6:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:19:11: warning: ‘z’ may be used uninitialized in this function [-Wuninitialized]