Compilare: user.cpp: In function ‘bool cmp(const int&, const int&)’: user.cpp:14:31: warning: value computed is not used [-Wunused-value] min(A[unu-1],A[unu+1])<min(A[doi-1],A[doi+1]); ^ user.cpp: In function ‘int depmin()’: user.cpp:39:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=1;i<v.size() && !cmp(v[0],v[i]);++i) swap(v[0],v[i]); ^ user.cpp:47:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=1;i<v.size() && !cmp(v[0],v[i]);++i) swap(v[0],v[i]); ^ user.cpp:19:21: warning: variable ‘M’ set but not used [-Wunused-but-set-variable] int i,dif=0,m=0,M=0,op=0; ^