<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[2302_79486697的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/2302_79486697</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; 2302_79486697]]></copyright><item><title><![CDATA[Leetcode|454.四数相加II ● 383. 赎金信 ● 15. 三数之和 ● 18. 四数之和]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/143273344</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/143273344</guid><author>2302_79486697</author><pubDate>Sun, 27 Oct 2024 21:39:41 +0800</pubDate><description><![CDATA[Leetcode| 常规题目求解~~~~~~]]></description><category></category></item><item><title><![CDATA[●Leetcode| 242.有效的字母异位词 ● 349. 两个数组的交集 ● 202. 快乐数● 1. 两数之和]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/143259859</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/143259859</guid><author>2302_79486697</author><pubDate>Sun, 27 Oct 2024 19:17:36 +0800</pubDate><description><![CDATA[242,该题目中数组范围比较短，可以数组使用并不会占太多的空间，利用数组的映射，查找到自己所需要的字符。349,这道题目的关键是去重,(衣服脱光才看到清楚，自己要找的数据是哪些)解法二：哈希表中的map(key无序，不重，不可改)202.题目中说的快乐数的判断只有俩种请跨。要么，不断拆分后，变为1。要么，不断的进行循环结果。]]></description><category></category></item><item><title><![CDATA[Leetcode|24. 两两交换链表中的节点 ● 19.删除链表的倒数第N个节点 ● 面试题 02.07. 链表相交 ● 142.环形链表II]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/143133427</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/143133427</guid><author>2302_79486697</author><pubDate>Mon, 21 Oct 2024 22:18:56 +0800</pubDate><description><![CDATA[注意：涉及头节点的修改或者删除时，最好设置一个虚拟的头结点，方便简化代码，不必进行是否为头节点的的判断，简化code。//这一步的操作也是始终知道头节点的位置，方便后续的链表输出。面试题02.07(链表相交)]]></description><category></category></item><item><title><![CDATA[Leetcode|203.移除链表元素 ● 707.设计链表 ● 206.反转链表]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/143062725</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/143062725</guid><author>2302_79486697</author><pubDate>Sun, 20 Oct 2024 02:05:25 +0800</pubDate><description><![CDATA[一般情况下，头节点为null，不存在数据，但此时struct中，将head初始为首节点，故是有数据。若想要虚拟的头结点，则需要自己去手动的添加。将这个元素分为俩种情况，第一个：是头节点。]]></description><category></category></item><item><title><![CDATA[Leetcode|209.长度最小的子数组 And 59.螺旋矩阵||]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/143061413</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/143061413</guid><author>2302_79486697</author><pubDate>Fri, 18 Oct 2024 21:13:20 +0800</pubDate><description><![CDATA[当while条件成立时，说明最后添加的数据时过大，就需要不断的减小sum的值，那就是不停更新起始位置的下标。精髓部分说明：当while条件不成立时，意味着此时的sum不符合target的判断条件了，需要向前走了。解法二：滑动窗口(不断调节，子数组的起始位置和终点位置)2.如何移动起始位置和终点位置？循环不变量原则---临界条件的取舍。1.窗口内的元素是什么？]]></description><category></category></item><item><title><![CDATA[代码随想录第一天|704.二分查找 27.移除元素]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/142993577</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/142993577</guid><author>2302_79486697</author><pubDate>Wed, 16 Oct 2024 23:37:54 +0800</pubDate><description><![CDATA[注释：快慢指针，实质上是一个数组的自我复制，只不过里面有一些数据是不合格的，所有需要进行删除更新，而这时候，快慢指针的两者不同的作用就展示出来了，数组整体被分割为俩个部分。一为下标，二为数据，下标由slowIndex控制，数据由fastIndex控制，二者俩结合就形成了一个符合题意的新数组。写法一：左右区间可以相等，left = right(左右区间的值都可以取到，这是更新left和right的依据)写法二：左右区间不能相等，即为left<right。写法二：双指针法，快慢指针。]]></description><category></category></item><item><title><![CDATA[Exception in thread “main“ java.lang.ClassCastException: class [Ljava.lang.Object； cannot be cast to]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/142772612</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/142772612</guid><author>2302_79486697</author><pubDate>Wed, 09 Oct 2024 00:52:53 +0800</pubDate><description><![CDATA[这个错误是，它发生在将Object[]类型强制转换为时。原因是 Java 不允许直接将一个Object[]类型数组强制转换为一个具体的泛型数组（如），这会在运行时引发异常。]]></description><category></category></item><item><title><![CDATA[string型，如何用return返回俩个string型]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/139579127</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/139579127</guid><author>2302_79486697</author><pubDate>Mon, 10 Jun 2024 17:09:00 +0800</pubDate><description><![CDATA[一般而言，return只能返回一个结果，但字符串是一种特殊的数据类型，将俩个字符串连接起来则可以输出俩个了。]]></description><category></category></item><item><title><![CDATA[代码随想录，总结篇]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/139104182</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/139104182</guid><author>2302_79486697</author><pubDate>Tue, 21 May 2024 22:36:24 +0800</pubDate><description><![CDATA[经过60天的算法训练，我从对数据结构的一无所知，到如今对，二分算法，动态规划，贪心算法等，都有了进一步的了解，与之同时我也明白自己的不足之处在对二叉树和链表等高级结构的学习，还有待提高，期待二刷时，能在进一步深入了解各种算法。]]></description><category></category></item><item><title><![CDATA[代码随想录，第60天]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/139104059</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/139104059</guid><author>2302_79486697</author><pubDate>Tue, 21 May 2024 22:30:27 +0800</pubDate><description><![CDATA[84.柱状图中最大的矩形。]]></description><category></category></item><item><title><![CDATA[代码随想录，第59天]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/139104034</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/139104034</guid><author>2302_79486697</author><pubDate>Tue, 21 May 2024 22:28:50 +0800</pubDate><description><![CDATA[【代码】代码随想录，第59天。]]></description><category></category></item><item><title><![CDATA[代码随想录，第57天]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/139104005</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/139104005</guid><author>2302_79486697</author><pubDate>Tue, 21 May 2024 22:27:30 +0800</pubDate><description><![CDATA[【代码】代码随想录，第57天。]]></description><category></category></item><item><title><![CDATA[代码随想录，第56天]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/139103952</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/139103952</guid><author>2302_79486697</author><pubDate>Tue, 21 May 2024 22:25:50 +0800</pubDate><description><![CDATA[【代码】代码随想录，第56天。]]></description><category></category></item><item><title><![CDATA[代码随想录，第54天]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/139103876</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/139103876</guid><author>2302_79486697</author><pubDate>Tue, 21 May 2024 22:23:09 +0800</pubDate><description><![CDATA[【代码】代码随想录，第54天。]]></description><category></category></item><item><title><![CDATA[代码随想录，第53天]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/139103813</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/139103813</guid><author>2302_79486697</author><pubDate>Tue, 21 May 2024 22:20:49 +0800</pubDate><description><![CDATA[1143.最长公共子序列。]]></description><category></category></item><item><title><![CDATA[代码随想录，第50天]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/139103763</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/139103763</guid><author>2302_79486697</author><pubDate>Tue, 21 May 2024 22:17:38 +0800</pubDate><description><![CDATA[714.买卖股票的最佳时机（含手续费）]]></description><category></category></item><item><title><![CDATA[代码随想录，第55天]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/138980266</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/138980266</guid><author>2302_79486697</author><pubDate>Fri, 17 May 2024 00:31:39 +0800</pubDate><description><![CDATA[115.不同的子序列。]]></description><category></category></item><item><title><![CDATA[代码随想录，第52天]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/138825915</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/138825915</guid><author>2302_79486697</author><pubDate>Tue, 14 May 2024 00:42:12 +0800</pubDate><description><![CDATA[674. 最长连续递增序列。300.最长递增子序列。]]></description><category></category></item><item><title><![CDATA[代码随想录，第49天]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/138688072</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/138688072</guid><author>2302_79486697</author><pubDate>Sat, 11 May 2024 00:52:36 +0800</pubDate><description><![CDATA[123.买卖股票的最佳时机111。]]></description><category></category></item><item><title><![CDATA[代码随想录，第48]]></title><link>https://blog.youkuaiyun.com/2302_79486697/article/details/138639943</link><guid>https://blog.youkuaiyun.com/2302_79486697/article/details/138639943</guid><author>2302_79486697</author><pubDate>Fri, 10 May 2024 02:16:56 +0800</pubDate><description><![CDATA[121.买卖股票的时机。]]></description><category></category></item></channel></rss>