Thì dùng hàm Sumifs là được rồi, cần gì phải dùng code
Sub Test3()
Dim sArr(), dArr(), i As Long, sNgay(), n As Long, k As Long, Tmp As String
Dim DicNgay As Object, Dic As Object, Col As Long, x As Long
Set Dic = CreateObject("scripting.dictionary")
Set DicNgay =...