Borderou de evaluare (job #6277)

Compilare: user.cpp: In function ‘int main()’: user.cpp:73:19: warning: unused variable ‘x’ [-Wunused-variable] user.cpp:73:21: warning: unused variable ‘y’ [-Wunused-variable] user.cpp:73:23: warning: unused variable ‘w’ [-Wunused-variable] user.cpp:71:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:72:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:74:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:76:48: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:80:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]