Compilare: main.cpp: In function 'bool check(char)': main.cpp:12:15: warning: array subscript has type 'char' [-Wchar-subscripts] freqT[sol[vf]]++; ^ main.cpp:15:17: warning: array subscript has type 'char' [-Wchar-subscripts] freqT[sol[vf]]--; ^ main.cpp:18:15: warning: array subscript has type 'char' [-Wchar-subscripts] freqT[sol[vf]]--; ^ main.cpp: In function 'int main()': main.cpp:27:13: warning: array subscript has type 'char' [-Wchar-subscripts] freqS[s[i]]++; ^ main.cpp:29:13: warning: array subscript has type 'char' [-Wchar-subscripts] freqT[t[i]]++; ^ main.cpp:36:14: warning: array subscript has type 'char' [-Wchar-subscripts] freqT[s[i]]--; ^ main.cpp:37:14: warning: array subscript has type 'char' [-Wchar-subscripts] freqS[s[i]]--; ^ main.cpp:41:17: warning: array subscript has type 'char' [-Wchar-subscripts] freqT[sol[vf]]++; ^ main.cpp:44:28: warning: array subscript has type 'char' [-Wchar-subscripts] if (vf < tz && freqT[s[i]] > 0) { ^ main.cpp:46:14: warning: array subscript has type 'char' [-Wchar-subscripts] freqT[s[i]]--; ^ main.cpp:48:13: warning: array subscript has type 'char' [-Wchar-subscripts] freqS[s[i]]--; ^