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tree简化max和min代码实现，并且添加递归宏定义

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建峰 2025-04-27 23:55:41 +08:00
parent 4530508a1b
commit bad8d68180
1 changed files with 11 additions and 40 deletions
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51
src/tree.c
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@ -12,6 +12,8 @@
#include "queue.h"
#include "stack.h"
#define TREE_RECURSIVE_ENABLED
static struct _tree_node* tree_node_new(struct _tree* self, void* obj)
{
assert(self != NULL);
@ -57,7 +59,7 @@ static void tree_node_free(struct _tree_node** node)
static uint32_t tree_height_node(struct _tree* self, struct _tree_node* root)
{
#if 0
#ifdef TREE_RECURSIVE_ENABLED
assert(self != NULL);
if (root == NULL)
{
@ -242,7 +244,7 @@ static struct _tree_node* tree_turn_right_then_left(struct _tree* self, struct _
*/
static bool tree_avl_rebalance(struct _tree* self, struct _tree_node* root)
{
#if 0
#ifdef TREE_RECURSIVE_ENABLED
assert(self != NULL);
if (root == NULL)
{
@ -253,7 +255,6 @@ static bool tree_avl_rebalance(struct _tree* self, struct _tree_node* root)
return false;
}
// self->print_obj(root->obj);
tree_set_balance(self, root);
int balance = root->balance;
if (balance == 2)
@ -288,6 +289,7 @@ static bool tree_avl_rebalance(struct _tree* self, struct _tree_node* root)
self->_root = root;
}
return true;
#else
assert(self != NULL);
if (root == NULL)
@ -365,60 +367,29 @@ static struct _tree_node* tree_find(struct _tree* self, void* obj)
static struct _tree_node* tree_find_min(struct _tree* self, struct _tree_node* root)
{
assert(self != NULL);
#if 0
if (root == NULL)
{
return NULL;
}
if (root->left == NULL)
{
return root;
}
return tree_find_min(self, root->left);
#else
while (root != NULL)
{
if (root->left != NULL)
if (root->left == NULL)
{
break;
}
root = root->left;
}
else
{
return root;
}
}
return root;
#endif
}
static struct _tree_node* tree_find_max(struct _tree* self, struct _tree_node* root)
{
#if 0
assert(self != NULL);
if (root == NULL)
{
return NULL;
}
if (root->right == NULL)
{
return root;
}
return tree_find_max(self, root->right);
#else
while (root != NULL)
{
if (root->right != NULL)
if (root->right == NULL)
{
break;
}
root = root->right;
}
else
{
return root;
}
}
return root;
#endif
}
/**
* @brief find the position to insert or find object