Borderou de evaluare (job #7670)

Compilare: user.cpp: In function ‘int choose(int)’: user.cpp:99:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘void read()’: user.cpp:67:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:68:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:71:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]