#include using namespace std; #define ll long long #define rep(i, n) for (int i = 0; i < (int)(n); i++) const long long mod=998244353; const long long mod2=469762049; int main(){ cin.tie(0)->sync_with_stdio(0); cout.tie(0); int T; cin>>T; while(T--){ int a,b,c,d; cin>>a>>b>>c>>d; if(a==0){ cout<<"No\n"; continue; } int D=b*b-3*a*c; if(D>0) cout<<"Yes\n"; else cout<<"No\n"; } }