func main()
	var t: int :: cui@inputInt()
	for(1, t)
		var a: int :: cui@inputInt()
		var b: int :: cui@inputInt()
		var c: int :: cui@inputInt()
		var d: int :: cui@inputInt()
		
		var ans: bool :: a <> 0 & b ^ 2 - 3 * a * c > 0
		do cui@print((ans ?("Yes", "No")) ~ "\n")
	end for
end func