Compilare: user.cpp: In function ‘void intersc_min()’: user.cpp:23:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] fr2[s[i]]++; ^ user.cpp:31:13: warning: array subscript has type ‘char’ [-Wchar-subscripts] fr2[s[i]]++; ^ user.cpp:39:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] fr2[sav]++; ^ user.cpp: In function ‘void make_minim()’: user.cpp:51:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (fr2[A[i]]>0) ^ user.cpp:54:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] fr2[A[i]]--; ^ user.cpp:73:34: warning: array subscript has type ‘char’ [-Wchar-subscripts] fr[s[i-1]]++; ^ user.cpp: In function ‘void intersc_max()’: user.cpp:99:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] fr[s[i]]++; ^ user.cpp:107:12: warning: array subscript has type ‘char’ [-Wchar-subscripts] fr[s[i]]++; ^ user.cpp:115:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] fr[sav]++; ^ user.cpp: In function ‘void make_maxim()’: user.cpp:127:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (fr[A[i]]>0) ^ user.cpp:130:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] fr[A[i]]--; ^ user.cpp:148:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] fr[s[i]]++; ^ user.cpp:152:38: warning: array subscript has type ‘char’ [-Wchar-subscripts] fr[s[i-1]]++; ^ user.cpp: In function ‘int main()’: user.cpp:174:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] fr2[s[i]]++,fr[s[i]]++; ^ user.cpp:174:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] fr2[s[i]]++,fr[s[i]]++; ^