Compilare: main.cpp: In function 'int main()': main.cpp:21:22: warning: array subscript has type 'char' [-Wchar-subscripts] 21 | f[s[i]]++; | ~~~^ main.cpp:24:23: warning: array subscript has type 'char' [-Wchar-subscripts] 24 | f1[t[i]]++; | ~~~^ main.cpp:27:26: warning: array subscript has type 'char' [-Wchar-subscripts] 27 | if(f1[s[i]]==2*f[s[i]] && c[s[i]]==0) | ~~~^ main.cpp:27:37: warning: array subscript has type 'char' [-Wchar-subscripts] 27 | if(f1[s[i]]==2*f[s[i]] && c[s[i]]==0) | ~~~^ main.cpp:27:48: warning: array subscript has type 'char' [-Wchar-subscripts] 27 | if(f1[s[i]]==2*f[s[i]] && c[s[i]]==0) | ~~~^ main.cpp:30:26: warning: array subscript has type 'char' [-Wchar-subscripts] 30 | c[s[i]]=1; | ~~~^