Compilare: user.cpp: In function ‘void Citeste()’: user.cpp:13:9: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] fin>>s+i; ^ user.cpp: In function ‘void Calculeaza()’: user.cpp:25:10: warning: array subscript has type ‘char’ [-Wchar-subscripts] f[s[0]]++; nr++; ^ user.cpp:32:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (f[s[j]] == 0) ^ user.cpp:34:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] f[s[j]]++; ^ user.cpp:37:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] else f[s[j]]++; ^ user.cpp:48:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] f[s[i]]--; ^ user.cpp:49:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] if ( f[s[i]] == 0 ) nr--; ^