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@ -120,8 +120,9 @@ class Solution {
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```
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```
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```java
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```java
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//解法二:空间复杂度:O(1)。用原始数组来进行反转操作
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// 解法二
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//思路为:先整个字符串反转,再反转前面的,最后反转后面 n 个
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// 空间复杂度:O(n)。String 的 toCharArray() 方法底层会 new 一个和原字符串相同大小的 char 数组
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// 思路为:先整个字符串反转,再反转前面的,最后反转后面 n 个
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class Solution {
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class Solution {
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public String reverseLeftWords(String s, int n) {
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public String reverseLeftWords(String s, int n) {
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char[] chars = s.toCharArray();
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char[] chars = s.toCharArray();
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@ -418,3 +419,4 @@ impl Solution {
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<a href="https://programmercarl.com/other/kstar.html" target="_blank">
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<a href="https://programmercarl.com/other/kstar.html" target="_blank">
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<img src="../pics/网站星球宣传海报.jpg" width="1000"/>
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<img src="../pics/网站星球宣传海报.jpg" width="1000"/>
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</a>
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</a>
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