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Add destructors to the C++ codes.

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This commit is contained in:
Yudong Jin
2023-01-14 19:52:11 +08:00
parent 87acfc91ab
commit bb657f9517
19 changed files with 121 additions and 24 deletions
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15
codes/cpp/include/ListNode.hpp
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@ -48,3 +48,18 @@ ListNode* getListNode(ListNode *head, int val) {
}
return head;
}
/**
* @brief Free the memory allocated to a linked list
*
* @param cur
*/
void freeMemoryLinkedList(ListNode *cur) {
// 释放内存
ListNode *pre;
while (cur != nullptr) {
pre = cur;
cur = cur->next;
delete pre;
}
}

13
codes/cpp/include/TreeNode.hpp
View File

@ -68,3 +68,16 @@ TreeNode *getTreeNode(TreeNode *root, int val) {
TreeNode *right = getTreeNode(root->right, val);
return left != nullptr ? left : right;
}
/**
* @brief Free the memory allocated to a tree
*
* @param root
*/
void freeMemoryTree(TreeNode *root) {
if (root == nullptr) return;
freeMemoryTree(root->left);
freeMemoryTree(root->right);
// 释放内存
delete root;
}