Compilare: main.cpp: In function 'int main()': main.cpp:10:40: warning: array subscript has type 'char' [-Wchar-subscripts] for (i = 'a'; i <= 'z'; ++i) epos[i] = 1; ^ main.cpp:16:19: warning: array subscript has type 'char' [-Wchar-subscripts] epos[i] = 0; ^ main.cpp:23:24: warning: array subscript has type 'char' [-Wchar-subscripts] if (!epos[i]) continue; ^ main.cpp:36:28: warning: array subscript has type 'char' [-Wchar-subscripts] if (!epos[i]) continue; ^