Compilare: user.cpp: In function ‘int main()’: user.cpp:22:12: warning: array subscript has type ‘char’ [-Wchar-subscripts] t[i] = i; ^ user.cpp:29:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(t[c1[i]] != c2[i]) { ^ user.cpp:31:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] qu[t[c1[i]]].ch1 = c2[i]; ^ user.cpp:31:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] qu[t[c1[i]]].ch1 = c2[i]; ^ user.cpp:32:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(!qu[t[c1[i]]].a) { ^ user.cpp:32:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(!qu[t[c1[i]]].a) { ^ user.cpp:33:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] qu[t[c1[i]]].a = true; ^ user.cpp:33:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] qu[t[c1[i]]].a = true; ^ user.cpp:38:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] t[c1[i]] = c2[i]; ^ user.cpp:46:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(t[c1[i]] != c2[i]) { ^ user.cpp:58:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(qu[i].a) ^ user.cpp:59:36: warning: array subscript has type ‘char’ [-Wchar-subscripts] out << i << " " << qu[i].ch1 << '\n'; ^