Compilare: user.cpp: In function ‘int main()’: user.cpp:11:11: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] fin>>s+1; ^ user.cpp:13:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] h[s[i]]++; ^ user.cpp:24:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] f[c[i]] =x; ^