Borderou de evaluare (job #395932)

Compilare: user.cpp: In function ‘int main()’: user.cpp:5:15: warning: unused variable ‘j’ [-Wunused-variable] user.cpp:5:20: warning: unused variable ‘y’ [-Wunused-variable] user.cpp:5:47: warning: unused variable ‘yz’ [-Wunused-variable] user.cpp:6:28: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:7:30: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]