Compilare: user.cpp: In function ‘int main()’: user.cpp:33:12: warning: array subscript has type ‘char’ [-Wchar-subscripts] ap[A[i]]+=comb(n-1,i-1); ^ user.cpp:34:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(ap[A[i]]>=mod) ap[A[i]]-=mod; ^ user.cpp:34:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(ap[A[i]]>=mod) ap[A[i]]-=mod; ^ user.cpp:35:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(ex[A[i]]==0){ex[A[i]]=1;diff++;} ^ user.cpp:35:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(ex[A[i]]==0){ex[A[i]]=1;diff++;} ^ /tmp/cc7T9DiC.o: In function `main': user.cpp:(.text.startup+0x62): warning: the `gets' function is dangerous and should not be used.