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CyC2018
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@ -13,7 +13,9 @@
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# 1. 有序数组的 Two Sum
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[167\. Two Sum II - Input array is sorted (Easy)](https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/description/)
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167\. Two Sum II - Input array is sorted (Easy)
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[Leetcode](https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/description/) / [力扣](https://leetcode-cn.com/problems/two-sum-ii-input-array-is-sorted/description/)
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```html
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Input: numbers={2, 7, 11, 15}, target=9
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@ -47,7 +49,9 @@ public int[] twoSum(int[] numbers, int target) {
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# 2. 两数平方和
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[633. Sum of Square Numbers (Easy)](https://leetcode.com/problems/sum-of-square-numbers/description/)
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633. Sum of Square Numbers (Easy)
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[Leetcode](https://leetcode.com/problems/sum-of-square-numbers/description/) / [力扣](https://leetcode-cn.com/problems/sum-of-square-numbers/description/)
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```html
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Input: 5
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@ -76,7 +80,9 @@ public boolean judgeSquareSum(int c) {
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# 3. 反转字符串中的元音字符
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[345. Reverse Vowels of a String (Easy)](https://leetcode.com/problems/reverse-vowels-of-a-string/description/)
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345. Reverse Vowels of a String (Easy)
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[Leetcode](https://leetcode.com/problems/reverse-vowels-of-a-string/description/) / [力扣](https://leetcode-cn.com/problems/reverse-vowels-of-a-string/description/)
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```html
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Given s = "leetcode", return "leotcede".
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@ -109,7 +115,9 @@ public String reverseVowels(String s) {
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# 4. 回文字符串
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[680. Valid Palindrome II (Easy)](https://leetcode.com/problems/valid-palindrome-ii/description/)
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680. Valid Palindrome II (Easy)
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[Leetcode](https://leetcode.com/problems/valid-palindrome-ii/description/) / [力扣](https://leetcode-cn.com/problems/valid-palindrome-ii/description/)
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```html
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Input: "abca"
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@ -141,7 +149,9 @@ private boolean isPalindrome(String s, int i, int j) {
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# 5. 归并两个有序数组
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[88. Merge Sorted Array (Easy)](https://leetcode.com/problems/merge-sorted-array/description/)
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88. Merge Sorted Array (Easy)
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[Leetcode](https://leetcode.com/problems/merge-sorted-array/description/) / [力扣](https://leetcode-cn.com/problems/merge-sorted-array/description/)
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```html
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Input:
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@ -175,7 +185,9 @@ public void merge(int[] nums1, int m, int[] nums2, int n) {
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# 6. 判断链表是否存在环
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[141. Linked List Cycle (Easy)](https://leetcode.com/problems/linked-list-cycle/description/)
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141. Linked List Cycle (Easy)
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[Leetcode](https://leetcode.com/problems/linked-list-cycle/description/) / [力扣](https://leetcode-cn.com/problems/linked-list-cycle/description/)
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使用双指针，一个指针每次移动一个节点，一个指针每次移动两个节点，如果存在环，那么这两个指针一定会相遇。
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@ -198,7 +210,9 @@ public boolean hasCycle(ListNode head) {
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# 7. 最长子序列
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[524. Longest Word in Dictionary through Deleting (Medium)](https://leetcode.com/problems/longest-word-in-dictionary-through-deleting/description/)
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524. Longest Word in Dictionary through Deleting (Medium)
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[Leetcode](https://leetcode.com/problems/longest-word-in-dictionary-through-deleting/description/) / [力扣](https://leetcode-cn.com/problems/longest-word-in-dictionary-through-deleting/description/)
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```
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Input:
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@ -13,7 +13,9 @@
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# 1. 有序数组的 Two Sum
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[167\. Two Sum II - Input array is sorted (Easy)](https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/description/)
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167\. Two Sum II - Input array is sorted (Easy)
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[Leetcode](https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/description/) / [力扣](https://leetcode-cn.com/problems/two-sum-ii-input-array-is-sorted/description/)
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```html
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Input: numbers={2, 7, 11, 15}, target=9
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@ -47,7 +49,9 @@ public int[] twoSum(int[] numbers, int target) {
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# 2. 两数平方和
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[633. Sum of Square Numbers (Easy)](https://leetcode.com/problems/sum-of-square-numbers/description/)
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633. Sum of Square Numbers (Easy)
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[Leetcode](https://leetcode.com/problems/sum-of-square-numbers/description/) / [力扣](https://leetcode-cn.com/problems/sum-of-square-numbers/description/)
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```html
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Input: 5
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@ -76,7 +80,9 @@ public boolean judgeSquareSum(int c) {
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# 3. 反转字符串中的元音字符
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[345. Reverse Vowels of a String (Easy)](https://leetcode.com/problems/reverse-vowels-of-a-string/description/)
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345. Reverse Vowels of a String (Easy)
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[Leetcode](https://leetcode.com/problems/reverse-vowels-of-a-string/description/) / [力扣](https://leetcode-cn.com/problems/reverse-vowels-of-a-string/description/)
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```html
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Given s = "leetcode", return "leotcede".
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@ -109,7 +115,9 @@ public String reverseVowels(String s) {
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# 4. 回文字符串
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[680. Valid Palindrome II (Easy)](https://leetcode.com/problems/valid-palindrome-ii/description/)
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680. Valid Palindrome II (Easy)
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[Leetcode](https://leetcode.com/problems/valid-palindrome-ii/description/) / [力扣](https://leetcode-cn.com/problems/valid-palindrome-ii/description/)
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```html
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Input: "abca"
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@ -141,7 +149,9 @@ private boolean isPalindrome(String s, int i, int j) {
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# 5. 归并两个有序数组
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[88. Merge Sorted Array (Easy)](https://leetcode.com/problems/merge-sorted-array/description/)
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88. Merge Sorted Array (Easy)
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[Leetcode](https://leetcode.com/problems/merge-sorted-array/description/) / [力扣](https://leetcode-cn.com/problems/merge-sorted-array/description/)
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```html
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Input:
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@ -175,7 +185,9 @@ public void merge(int[] nums1, int m, int[] nums2, int n) {
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# 6. 判断链表是否存在环
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[141. Linked List Cycle (Easy)](https://leetcode.com/problems/linked-list-cycle/description/)
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141. Linked List Cycle (Easy)
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[Leetcode](https://leetcode.com/problems/linked-list-cycle/description/) / [力扣](https://leetcode-cn.com/problems/linked-list-cycle/description/)
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使用双指针，一个指针每次移动一个节点，一个指针每次移动两个节点，如果存在环，那么这两个指针一定会相遇。
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@ -198,7 +210,9 @@ public boolean hasCycle(ListNode head) {
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# 7. 最长子序列
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[524. Longest Word in Dictionary through Deleting (Medium)](https://leetcode.com/problems/longest-word-in-dictionary-through-deleting/description/)
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524. Longest Word in Dictionary through Deleting (Medium)
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[Leetcode](https://leetcode.com/problems/longest-word-in-dictionary-through-deleting/description/) / [力扣](https://leetcode-cn.com/problems/longest-word-in-dictionary-through-deleting/description/)
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```
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Input:
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