Compilare: main.cpp: In function 'bool check(char)': main.cpp:13:23: warning: array subscript has type 'char' [-Wchar-subscripts] return (freqT[sol[vf]] + 1 <= freqS[sol[vf]]); ^ main.cpp:13:45: warning: array subscript has type 'char' [-Wchar-subscripts] return (freqT[sol[vf]] + 1 <= freqS[sol[vf]]); ^ main.cpp: In function 'int main()': main.cpp:21:13: warning: array subscript has type 'char' [-Wchar-subscripts] freqS[s[i]]++; ^ main.cpp:23:13: warning: array subscript has type 'char' [-Wchar-subscripts] freqT[t[i]]++, ok[t[i]] = 1; ^ main.cpp:23:25: warning: array subscript has type 'char' [-Wchar-subscripts] freqT[t[i]]++, ok[t[i]] = 1; ^ main.cpp:28:15: warning: array subscript has type 'char' [-Wchar-subscripts] if (!ok[s[i]]) ^ main.cpp:32:14: warning: array subscript has type 'char' [-Wchar-subscripts] freqT[s[i]]--; ^ main.cpp:33:14: warning: array subscript has type 'char' [-Wchar-subscripts] freqS[s[i]]--; ^ main.cpp:37:17: warning: array subscript has type 'char' [-Wchar-subscripts] freqT[sol[vf]]++; ^ main.cpp:40:28: warning: array subscript has type 'char' [-Wchar-subscripts] if (vf < tz && freqT[s[i]] > 0) { ^ main.cpp:42:14: warning: array subscript has type 'char' [-Wchar-subscripts] freqT[s[i]]--; ^ main.cpp:44:13: warning: array subscript has type 'char' [-Wchar-subscripts] freqS[s[i]]--; ^