Compilare: main.cpp: In function 'int main()': main.cpp:10:9: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] f>>s+1; ~^~ main.cpp:12:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=strlen(s)-2 && ok==0;i++) ~^~~~~~~~~~~~~ main.cpp:14:18: warning: array subscript has type 'char' [-Wchar-subscripts] if(v[s[i]][s[i+1]]!=0) ^ main.cpp:14:26: warning: array subscript has type 'char' [-Wchar-subscripts] if(v[s[i]][s[i+1]]!=0) ^ main.cpp:17:21: warning: array subscript has type 'char' [-Wchar-subscripts] v[s[i-1]][s[i]]==v[s[i-1]][s[i]]+1; ^ main.cpp:17:27: warning: array subscript has type 'char' [-Wchar-subscripts] v[s[i-1]][s[i]]==v[s[i-1]][s[i]]+1; ^ main.cpp:17:38: warning: array subscript has type 'char' [-Wchar-subscripts] v[s[i-1]][s[i]]==v[s[i-1]][s[i]]+1; ^ main.cpp:17:44: warning: array subscript has type 'char' [-Wchar-subscripts] v[s[i-1]][s[i]]==v[s[i-1]][s[i]]+1; ^ main.cpp:17:28: warning: statement has no effect [-Wunused-value] v[s[i-1]][s[i]]==v[s[i-1]][s[i]]+1; ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~