已知相同维度的几个一维数组,并且每个数组的第一个是数字,后面的元素有的为空,有的不为空,如何合并得到一个新的一维数组,使得合并后的数组的每个元素都不为空,并且被合并数组的第一个元素的和值最小,vba代码要怎么写?
时间: 2024-03-16 14:47:46 浏览: 68
可以按照以下步骤合并数组:
1. 将所有数组的非空元素取出来,存放在一个新的数组中。
2. 对新数组进行排序,按照元素值从小到大的顺序进行排序。
3. 将新数组的元素逐个加入到一个新的数组中,同时记录每个元素所属的原数组。如果遇到相同值的元素,将其加入到相同值元素所属的原数组的后面。
4. 对新数组进行遍历,将每个元素加入到其所属的原数组的后面。
下面是一个简单的 VBA 代码示例,可以实现以上步骤:
```
Sub MergeArrays()
Dim arrays(1 To 3) As Variant
'假设有三个数组,每个数组的第一个元素是数字,后面的元素有的为空,有的不为空
arrays(1) = Array(1, 3, 5, 7, Empty, Empty)
arrays(2) = Array(2, 4, Empty, Empty, Empty)
arrays(3) = Array(6, 8, 9, Empty, Empty, Empty)
Dim mergedArray() As Variant
Dim sortedArray() As Variant
Dim i As Integer, j As Integer, k As Integer
Dim minIndex As Integer, minValue As Long
Dim emptyCount As Integer, totalCount As Integer
'Step 1: 取出所有非空元素,存放在一个新数组中
For i = 1 To UBound(arrays)
emptyCount = 0
totalCount = UBound(arrays(i))
For j = 2 To totalCount
If IsEmpty(arrays(i)(j)) Then
emptyCount = emptyCount + 1
Else
ReDim Preserve mergedArray(1 To UBound(mergedArray) + 1)
mergedArray(UBound(mergedArray)) = arrays(i)(j)
End If
Next j
'如果原数组中所有元素都为空,则将第一个元素加入到新数组中
If emptyCount = totalCount - 1 Then
ReDim Preserve mergedArray(1 To UBound(mergedArray) + 1)
mergedArray(UBound(mergedArray)) = arrays(i)(1)
End If
Next i
'Step 2: 对新数组进行排序
For i = 1 To UBound(mergedArray) - 1
minIndex = i
minValue = mergedArray(i)
For j = i + 1 To UBound(mergedArray)
If mergedArray(j) < minValue Then
minIndex = j
minValue = mergedArray(j)
End If
Next j
If minIndex <> i Then
mergedArray(minIndex) = mergedArray(i)
mergedArray(i) = minValue
End If
Next i
'Step 3: 将新数组的元素逐个加入到一个新的数组中,同时记录每个元素所属的原数组
ReDim sortedArray(1 To UBound(mergedArray) + UBound(arrays))
k = 1
For i = 1 To UBound(mergedArray)
sortedArray(k) = mergedArray(i)
For j = 1 To UBound(arrays)
If Not IsEmpty(arrays(j)) Then
If arrays(j)(1) = mergedArray(i) Then
sortedArray(k + 1) = j
k = k + 2
Exit For
End If
End If
Next j
Next i
'Step 4: 将新数组中的元素加入到其所属的原数组的后面
For i = 1 To UBound(sortedArray) Step 2
j = sortedArray(i + 1)
ReDim Preserve arrays(j)(1 To UBound(arrays(j)) + 1)
arrays(j)(UBound(arrays(j))) = sortedArray(i)
Next i
'计算每个数组的第一个元素的和值
Dim sums(1 To UBound(arrays)) As Long
For i = 1 To UBound(arrays)
sums(i) = arrays(i)(1)
For j = 2 To UBound(arrays(i))
If Not IsEmpty(arrays(i)(j)) Then
sums(i) = sums(i) + arrays(i)(j)
End If
Next j
Next i
'找到和值最小的数组
Dim minSum As Long
minSum = sums(1)
minIndex = 1
For i = 2 To UBound(sums)
If sums(i) < minSum Then
minSum = sums(i)
minIndex = i
End If
Next i
'输出合并后的数组
Dim mergedOutput() As Variant
ReDim mergedOutput(1 To UBound(arrays(minIndex)))
k = 1
For i = 1 To UBound(arrays(minIndex))
mergedOutput(k) = arrays(minIndex)(i)
k = k + 1
For j = 1 To UBound(arrays)
If j <> minIndex And Not IsEmpty(arrays(j)(i)) Then
ReDim Preserve mergedOutput(1 To UBound(mergedOutput) + 1)
mergedOutput(UBound(mergedOutput)) = arrays(j)(i)
End If
Next j
Next i
Debug.Print Join(mergedOutput, ",")
End Sub
```
注意,在第四步中,根据题目要求,我们需要找到和值最小的数组,并将其作为合并后的数组。上述代码中,我们计算了每个数组的第一个元素的和值,并找到和值最小的数组。然后,我们将该数组的所有元素作为合并后的数组的基础,并将其他数组的元素依次加入到其对应的位置上。最终,输出合并后的数组即可。
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