Compilare: user.cpp: In function ‘void read(FILE*, FILE*)’: user.cpp:26:27: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[5]’ [-Wformat=] scanf("%s",&v[i].s); ^ user.cpp:18:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&p,&n); ^ user.cpp:21:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c",&c); ^ user.cpp:26:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",&v[i].s); ^