Compilare: user.cpp: In function ‘int F()’: user.cpp:37:37: warning: array subscript has type ‘char’ [-Wchar-subscripts] var.push_back(v[*itk]); ^ user.cpp:47:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(it=0; it<legi.size(); it++) ^ user.cpp:45:9: warning: unused variable ‘x’ [-Wunused-variable] int x=legi.size(); ^ user.cpp: In function ‘int main()’: user.cpp:123:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(!v[*it]) ^ user.cpp:126:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[*it]=1; ^ user.cpp:131:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(!v[*it]) ^ user.cpp:134:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[*it]=1; ^ user.cpp:139:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[*(lit.begin())]=0; ^ user.cpp:141:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[*(lit.begin())]=v[*(lit.begin())]*10+(*it)-'0'; ^ user.cpp:141:47: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[*(lit.begin())]=v[*(lit.begin())]*10+(*it)-'0'; ^ user.cpp:116:15: warning: unused variable ‘k’ [-Wunused-variable] int n,m,i,k; ^