Compilare: user.c: In function ‘put’: user.c:16:9: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(!c[t][x]){ ^ user.c:19:13: warning: array subscript has type ‘char’ [-Wchar-subscripts] c[t][x]=C++; ^ user.c:21:9: warning: array subscript has type ‘char’ [-Wchar-subscripts] t=c[t][x]; ^ user.c: In function ‘main’: user.c:31:12: warning: operation on ‘C’ may be undefined [-Wsequence-point] v[C=0]=C; ^ user.c:28:17: warning: unused variable ‘j’ [-Wunused-variable] int t,n,m,i,j; ^ user.c:26:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("cenzura.in","r",stdin); ^ user.c:27:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("cenzura.out","w",stdout); ^ user.c:29:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i",&t); ^ user.c:33:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i",&n); ^ user.c:34:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",s); ^ user.c:35:23: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] fr(i,0,n)scanf("%i",p+i); ^ user.c:36:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i",&m); ^ user.c:38:18: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",S); ^