用西门子SCL语言编写二叉树排序的具体程序代码
时间: 2023-08-31 13:26:23 浏览: 204
### 回答1:
实现二叉树排序的SCL程序代码如下:PROGRAM SCLTREE_SORTVAR
root: TREE_NODE;
arr: ARRAY[1..N] OF INTEGER;PROCEDURE SORT
(VAR arr: ARRAY[1..N] OF INTEGER);
VAR
i, j: INTEGER;
BEGIN
root := NIL;
FOR i:=1 TO N DO
INSERT_NODE(arr[i], root);
FOR i := 1 TO N DO
arr[i] := DELETE_NODE(root);
END;FUNCTION NEW_NODE(VAR key: INTEGER): TREE_NODE;
VAR
n: TREE_NODE;
BEGIN
NEW(n);
n^.key := key;
n^.left := NIL;
n^.right := NIL;
NEW_NODE := n;
END;PROCEDURE INSERT_NODE(VAR key: INTEGER; VAR root: TREE_NODE);
VAR
node: TREE_NODE;
BEGIN
node := NEW_NODE(key);
IF root = NIL THEN
root := node;
ELSE
IF key < root^.key THEN
INSERT_NODE(key, root^.left);
ELSE
INSERT_NODE(key, root^.right);
END;
END;
END;FUNCTION DELETE_NODE(VAR root: TREE_NODE): INTEGER;
VAR
key: INTEGER;
BEGIN
IF root^.left = NIL THEN
key := root^.key;
DISPOSE(root);
root := NIL;
ELSE
key := DELETE_NODE(root^.left);
END;
DELETE_NODE := key;
END;BEGIN
SORT(arr);
END.
### 回答2:
下面是使用西门子SCL语言编写的二叉树排序具体程序代码:
```scl
FUNCTION_BLOCK BinaryTreeSort
VAR_INPUT
unsortedArray: ARRAY[1..N] OF INT; // 待排序的数组
N: INT; // 数组长度
END_VAR
VAR_OUTPUT
sortedArray: ARRAY[1..N] OF INT; // 排序后的数组
END_VAR
VAR_INTERNAL
rootNode: POINTER TO Node; // 根节点
END_VAR
TYPE Node :
STRUCT
value: INT; // 节点值
left: POINTER TO Node; // 左子节点
right: POINTER TO Node; // 右子节点
END_STRUCT;
END_TYPE
METHOD BuildTree: BOOL
VAR_INPUT
newValue: INT; // 插入节点的值
END_VAR
VAR
currentNode: POINTER TO Node; // 当前节点
parentNode: POINTER TO Node; // 父节点
END_VAR
// 初始化根节点
IF rootNode = 0 THEN
rootNode := NEW(Node);
rootNode.value := unsortedArray[1];
sortedArray[1] := rootNode.value;
RETURN;
END_IF;
currentNode := rootNode;
// 插入新节点
WHILE currentNode <> 0 DO
parentNode := currentNode;
// 若新节点值小于当前节点值,则向左子树插入
IF newValue < currentNode.value THEN
currentNode := currentNode.left;
// 否则向右子树插入
ELSE
currentNode := currentNode.right;
END_IF;
END_WHILE;
currentNode := NEW(Node);
currentNode.value := newValue;
// 将新节点连接到父节点上
IF newValue < parentNode.value THEN
parentNode.left := currentNode;
ELSE
parentNode.right := currentNode;
END_IF;
RETURN TRUE;
END_METHOD
METHOD InorderTraversal
VAR_INPUT
node: POINTER TO Node; // 遍历的起始节点
END_VAR
VAR
stack: ARRAY[1..N] OF POINTER TO Node;
stackIndex: INT := 0;
currentNode: POINTER TO Node;
END_VAR
currentNode := node;
WHILE currentNode <> 0 OR stackIndex <> 0 DO
WHILE currentNode <> 0 DO
stackIndex := stackIndex + 1;
stack[stackIndex] := currentNode;
currentNode := currentNode.left;
END_WHILE;
stackIndex := stackIndex - 1;
currentNode := stack[stackIndex + 1];
sortedArray[stackIndex + 1] := currentNode.value;
currentNode := currentNode.right;
END_WHILE;
END_METHOD
METHOD Sort
VAR
i: INT;
END_VAR
FOR i := 1 TO N DO
BuildTree(unsortedArray[i]);
END_FOR;
InorderTraversal(rootNode);
END_METHOD
END_FUNCTION_BLOCK
```
以上是用SCL语言编写的二叉树排序程序。程序定义了一个BinaryTreeSort函数块,其中包含了Node结构体定义、BuildTree方法用于构建二叉树、InorderTraversal方法用于中序遍历二叉树以获取排序后的数组、Sort方法用于调用BuildTree和InorderTraversal进行排序。输入数据为待排序的数组unsortedArray和数组长度N,输出数据为排序后的数组sortedArray。
阅读全文