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| 针对以上的三种类型，都给出了模版。可是就像weiwei大佬说的[link](https://ojeveryday.github.io/AlgoWiki/#/BinarySearch/01-introduction?id=%e4%ba%8c%e5%88%86%e6%9f%a5%e6%89%be%e7%9a%84%e4%b8%89%e4%b8%aa%e6%a8%a1%e6%9d%bf)，仅供参考哈。模版的意义在于可以帮助减少对某些边界条件的考虑以及对于某些问题的多想，节约脑细胞。 | ||
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| 一般来说我们都需要用到两个变量，分别表示两个idx，一般是数组或者字符串中的idx。 |
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idx 这种缩写不知道是不是规范，可以说两个下标（索引），或者就说两个变量，问题都不大。
因为双指针就是在解决问题的过程中，使用的两个变量。
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| 滑动窗口应该算是双指针的一种应用，同时还可以用queue来实现。 |
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- 同上，「应该算」建议删去；
+「同时还可以用queue来实现。」建议删去。
TwoPointers/02-同向双指针.md
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前面快慢指针命名用 fast，这里命名也需要统一用成 fast。
TwoPointers/02-同向双指针.md
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print 这样的语句需要从示例代码中删除。
TwoPointers/03-相向双指针.md
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「指针对撞」的问题例题建议的顺序是：
- 第 167 题
- 第 11 题
- 第 15 题
- （前 3 题是典型问题）其它相关问题
并且建议尽量通俗地讲清楚，是怎么想到指针一头一尾相向，然后简单说明合理性。
TwoPointers/04-背向双指针.md
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知识点和例题上面没有太多问题，反馈意见如下：
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要在 sidebar 里面添加一下自己的 markdown 文件哈 |
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我以前为了看预览，自己加了上去，不知道是不是对原作者有用。 |
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