Compilare: user.cpp: In function ‘int main()’: user.cpp:23:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (fr[lit[i]] == 0) ^ user.cpp:25:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] fr[lit[i]]=1; ^ user.cpp:29:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] fr[lit[i]]++; ^ user.cpp:36:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] put[litd[i]]=c; ^ user.cpp:45:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (put[litd[i]] == putmax) ^ user.cpp:46:32: warning: array subscript has type ‘char’ [-Wchar-subscripts] nrapmax+=fr[litd[i]]; ^ user.cpp:50:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (i-put[lit[i]] >= 1) ^ user.cpp:51:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] st=i-put[lit[i]]; ^ user.cpp:54:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (i+put[lit[i]] <= n) ^ user.cpp:55:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] dr=i+put[lit[i]]; ^