# Algorithm

**Repository Path**: memorin/algorithm

## Basic Information

- **Project Name**: Algorithm
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2026-08-07
- **Last Updated**: 2026-09-10

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# Algorithm

个人算法题解仓库。仅收录已经通过在线判题（AC）的代码，并按照“语言 / 题型”分类。

## 目录结构

```text
java/
├─ array-partition/
│  └─ SortColors.java
├─ binary-search/
│  ├─ FindMinimum.java
│  ├─ SearchRange.java
│  └─ TakeAttendance.java
├─ bucket-counting/
│  └─ ArrayIntersection.java
├─ combinatorial-counting/
│  └─ CountDigitTwo.java
├─ hash-linked-list/
│  ├─ LFUCache.java
│  └─ LRUCache.java
├─ prefix-sum/
│  ├─ ContiguousArray.java
│  ├─ MatrixBlockSum.java
│  ├─ OneDimensionalPrefixSum.java
│  ├─ PivotIndex.java
│  ├─ ProductExceptSelf.java
│  ├─ SubarraySumEqualsK.java
│  ├─ SubarraysDivisibleByK.java
│  └─ TwoDimensionalPrefixSum.java
├─ sliding-window/
│  └─ FindAllAnagrams.java
└─ stack/
   └─ ClickElimination.java
```

## 已收录题目

| 题型 | 题目 | 代码 | 状态 |
| --- | --- | --- | --- |
| 数组分区 | [LeetCode 75. 颜色分类](https://leetcode.cn/problems/sort-colors/) | [SortColors.java](java/array-partition/SortColors.java) | AC |
| 二分查找 | [LeetCode 153. 寻找旋转排序数组中的最小值](https://leetcode.cn/problems/find-minimum-in-rotated-sorted-array/) | [FindMinimum.java](java/binary-search/FindMinimum.java) | AC |
| 二分查找 | [LCR 173. 点名](https://leetcode.cn/problems/que-shi-de-shu-zi-lcof/) | [TakeAttendance.java](java/binary-search/TakeAttendance.java) | AC |
| 二分查找 | [LeetCode 34. 在排序数组中查找元素的第一个和最后一个位置](https://leetcode.cn/problems/find-first-and-last-position-of-element-in-sorted-array/) | [SearchRange.java](java/binary-search/SearchRange.java) | AC |
| 前缀和 | [牛客 DP34.【模板】前缀和](https://www.nowcoder.com/practice/acead2f4c28c401889915da98ecdc6bf) | [OneDimensionalPrefixSum.java](java/prefix-sum/OneDimensionalPrefixSum.java) | AC |
| 前缀和 | [牛客 DP35.【模板】二维前缀和](https://www.nowcoder.com/practice/99eb8040d116414ea3296467ce81cbbc) | [TwoDimensionalPrefixSum.java](java/prefix-sum/TwoDimensionalPrefixSum.java) | AC |
| 前缀和 | [LeetCode 724. 寻找数组的中心下标](https://leetcode.cn/problems/find-pivot-index/) | [PivotIndex.java](java/prefix-sum/PivotIndex.java) | AC |
| 前缀和 | [LeetCode 238. 除了自身以外数组的乘积](https://leetcode.cn/problems/product-of-array-except-self/) | [ProductExceptSelf.java](java/prefix-sum/ProductExceptSelf.java) | AC |
| 前缀和 | [LeetCode 560. 和为 K 的子数组](https://leetcode.cn/problems/subarray-sum-equals-k/) | [SubarraySumEqualsK.java](java/prefix-sum/SubarraySumEqualsK.java) | AC |
| 前缀和 | [LeetCode 974. 和可被 K 整除的子数组](https://leetcode.cn/problems/subarray-sums-divisible-by-k/) | [SubarraysDivisibleByK.java](java/prefix-sum/SubarraysDivisibleByK.java) | AC |
| 前缀和 | [LeetCode 525. 连续数组](https://leetcode.cn/problems/contiguous-array/) | [ContiguousArray.java](java/prefix-sum/ContiguousArray.java) | AC |
| 前缀和 | [LeetCode 1314. 矩阵区域和](https://leetcode.cn/problems/matrix-block-sum/) | [MatrixBlockSum.java](java/prefix-sum/MatrixBlockSum.java) | AC |
| 滑动窗口 | [LeetCode 438. 找到字符串中所有字母异位词](https://leetcode.cn/problems/find-all-anagrams-in-a-string/) | [FindAllAnagrams.java](java/sliding-window/FindAllAnagrams.java) | AC |
| 组合计数 | [牛客：数字统计](https://www.nowcoder.com/practice/179d9754eeaf48a1b9a49dc1d438525a) | [CountDigitTwo.java](java/combinatorial-counting/CountDigitTwo.java) | AC |
| 桶计数 | [牛客：两个数组的交集](https://www.nowcoder.com/practice/f31371f27dcd4c90a8fd2902d3e4592c) | [ArrayIntersection.java](java/bucket-counting/ArrayIntersection.java) | AC |
| 栈 | [牛客：点击消除](https://www.nowcoder.com/practice/8d3643ec29654cf8908b5cf3a0479fd5) | [ClickElimination.java](java/stack/ClickElimination.java) | AC |
| 哈希表 + 双向链表 | [LeetCode 146. LRU 缓存](https://leetcode.cn/problems/lru-cache/) | [LRUCache.java](java/hash-linked-list/LRUCache.java) | AC |
| 哈希表 + 双向链表 | [LeetCode 460. LFU 缓存](https://leetcode.cn/problems/lfu-cache/) | [LFUCache.java](java/hash-linked-list/LFUCache.java) | AC |

牛客 ACM 模式要求提交类名为 `Main`。仓库文件使用与文件名一致的描述性公开类名，提交时需要改回 `Main`。