Compilare: user.cpp: In function ‘void read()’: user.cpp:23:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (unsigned int i=0; i<lungime; i++) ^ user.cpp:18:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v); ^ user.cpp:20:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", s); ^