Compilare: user.cpp: In function ‘int main()’: user.cpp:19:13: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] f>>s+1; ^ user.cpp:20:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] Next[n][s[n]]=n; ^ user.cpp:25:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] Next[i][s[i]]=i; ^ user.cpp:35:50: warning: array subscript has type ‘char’ [-Wchar-subscripts] sum=sum-subsir[Next[i+1][s[i]]]+subsir[i]; ^