Compilare: user.cpp: In function ‘int main()’: user.cpp:15:20: warning: integer overflow in expression [-Woverflow] int e=-1+(1<<31); ^ user.cpp:26:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(dr+1<=n && v[dr+1]-v[i]<=m) ^ user.cpp:28:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(v[i]-v[st+1]>m) ^ user.cpp:23:13: warning: unused variable ‘sz’ [-Wunused-variable] int sz=0; ^