/* PROB:t1 TIME:20151212 eve #define me AcrossTheSky good good study,day day up! */ #include #include #include #include #include #include #include #include #include #include #include #include #include #define lowbit(x) (x)&(-x) using namespace std; typedef long long ll; ll a,b,c,l,r; ll calc(ll x){ return (a*x*x+b*x+c); } int main(){ int cas; scanf("%d",&cas); while (cas){ //int a,b,c,l,r; int max=-1<<30,min=1<<30; cin >> a >> b >> c >> l >> r; for (int i=l;i<=r;i++) { int x=calc(i); if (x>max) max=x; if (x