用python语言写一个顺序表,并且顺序表L中的数据元素递增有序。试写一算法,将数据元素x插入到顺序表L的适当位置,以保持该表的有序性。
时间: 2023-11-03 21:17:31 浏览: 85
以下是用 Python 语言实现顺序表,并且实现将数据元素 x 插入到顺序表 L 的适当位置,以保持该表的有序性的算法:
```python
class SeqList:
def __init__(self, maxsize=None):
self.maxsize = maxsize
self.length = 0
self.data = [None] * self.maxsize
def __len__(self):
return self.length
def __getitem__(self, index):
if 0 <= index < self.length:
return self.data[index]
else:
raise IndexError("Index out of range")
def __setitem__(self, index, value):
if 0 <= index < self.length:
self.data[index] = value
else:
raise IndexError("Index out of range")
def __contains__(self, value):
return value in self.data
def index(self, value):
for i in range(self.length):
if self.data[i] == value:
return i
raise ValueError("Value not found")
def count(self, value):
return self.data.count(value)
def insert(self, index, value):
if self.length >= self.maxsize:
raise Exception("SeqList is full")
if index < 0:
index = 0
elif index > self.length:
index = self.length
for i in range(self.length-1, index-1, -1):
self.data[i+1] = self.data[i]
self.data[index] = value
self.length += 1
def remove(self, value):
for i in range(self.length):
if self.data[i] == value:
for j in range(i, self.length-1):
self.data[j] = self.data[j+1]
self.data[self.length-1] = None
self.length -= 1
return
raise ValueError("Value not found")
def pop(self, index=None):
if not self.length:
raise Exception("SeqList is empty")
if index is None:
index = self.length - 1
value = self[index]
self.remove(value)
return value
def add(self, value):
self.insert(self.length, value)
def insert_ordered(self, value):
index = 0
while index < self.length and self.data[index] < value:
index += 1
self.insert(index, value)
```
在上面的代码中,我们定义了一个 SeqList 类,该类实现了顺序表的基本功能,包括创建顺序表、获取元素、设置元素、插入元素、删除元素等等。其中,`insert_ordered` 方法可以将数据元素 x 插入到顺序表 L 的适当位置,以保持该表的有序性。具体实现方式是,先找到 x 应该插入的位置,然后调用 `insert` 方法将其插入到相应位置。
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