Compilare: user.c: In function ‘main’: user.c:9:5: warning: format ‘%s’ expects argument of type ‘char *’, but argument 2 has type ‘char (*)[1001]’ [-Wformat=] scanf("%s",&n); ^ user.c:7:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("beep.in","r",stdin); ^ user.c:8:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("beep.out","w",stdout); ^ user.c:9:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",&n); ^ user.c:11:9: warning: ignoring return value of ‘gets’, declared with attribute warn_unused_result [-Wunused-result] gets(k); ^ /tmp/cchvnEGW.o: In function `main': user.c:(.text.startup+0x75): warning: the `gets' function is dangerous and should not be used.