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Merge pull request #1041 from chenhaoran14/master

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Java修改
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程序员Carl
2022-01-21 19:45:46 +08:00
committed by GitHub
parent f4c90140f9 43eb0269d3
commit 7b557f2ca9
2 changed files with 8 additions and 8 deletions
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2
problems/0347.前K个高频元素.md
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@ -142,7 +142,7 @@ class Solution {
Set<Map.Entry<Integer, Integer>> entries = map.entrySet(); Set<Map.Entry<Integer, Integer>> entries = map.entrySet();
// 根据map的value值正序排，相当于一个小顶堆 // 根据map的value值正序排，相当于一个小顶堆
PriorityQueue<Map.Entry<Integer, Integer>> queue = new PriorityQueue<>((o1, o2) -> o2.getValue() - o1.getValue()); PriorityQueue<Map.Entry<Integer, Integer>> queue = new PriorityQueue<>((o1, o2) -> o1.getValue() - o2.getValue());
for (Map.Entry<Integer, Integer> entry : entries) { for (Map.Entry<Integer, Integer> entry : entries) {
queue.offer(entry); queue.offer(entry);
if (queue.size() > k) { if (queue.size() > k) {

14
problems/二叉树的递归遍历.md
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@ -116,19 +116,19 @@ Java：
```Java ```Java
// 前序遍历·递归·LC144_二叉树的前序遍历 // 前序遍历·递归·LC144_二叉树的前序遍历
class Solution { class Solution {
ArrayList<Integer> preOrderReverse(TreeNode root) { public List<Integer> preorderTraversal(TreeNode root) {
ArrayList<Integer> result = new ArrayList<Integer>(); List<Integer> result = new ArrayList<Integer>();
preOrder(root, result); preorder(root, result);
return result; return result;
} }
void preOrder(TreeNode root, ArrayList<Integer> result) { public void preorder(TreeNode root, List<Integer> result) {
if (root == null) { if (root == null) {
return; return;
} }
result.add(root.val); // 注意这一句 result.add(root.val);
preOrder(root.left, result); preorder(root.left, result);
preOrder(root.right, result); preorder(root.right, result);
} }
} }
// 中序遍历·递归·LC94_二叉树的中序遍历 // 中序遍历·递归·LC94_二叉树的中序遍历