From 69253957ee593add1ad250473ea371327a38c07c Mon Sep 17 00:00:00 2001 From: ubuntu Date: Thu, 26 Mar 2026 15:33:47 +0900 Subject: [PATCH] Archive --- .dependencies.json | 1 + docs/prd/20260326152929.json | 1 + docs/requirement.txt | 1 + docs/system_design/20260326152929.json | 1 + docs/task/20260326152929.json | 1 + quick_sort_js/index.js | 54 ++++++++++ quick_sort_js/quickSort.js | 98 +++++++++++++++++++ requirements.txt | 1 + .../competitive_analysis/20260326152929.mmd | 15 +++ resources/data_api_design/20260326152929.mmd | 10 ++ resources/prd/20260326152929.md | 77 +++++++++++++++ resources/seq_flow/20260326152929.mmd | 33 +++++++ resources/system_design/20260326152929.md | 64 ++++++++++++ 13 files changed, 357 insertions(+) create mode 100644 .dependencies.json create mode 100644 docs/prd/20260326152929.json create mode 100644 docs/requirement.txt create mode 100644 docs/system_design/20260326152929.json create mode 100644 docs/task/20260326152929.json create mode 100644 quick_sort_js/index.js create mode 100644 quick_sort_js/quickSort.js create mode 100644 requirements.txt create mode 100644 resources/competitive_analysis/20260326152929.mmd create mode 100644 resources/data_api_design/20260326152929.mmd create mode 100644 resources/prd/20260326152929.md create mode 100644 resources/seq_flow/20260326152929.mmd create mode 100644 resources/system_design/20260326152929.md diff --git a/.dependencies.json b/.dependencies.json new file mode 100644 index 0000000..351f59b --- /dev/null +++ b/.dependencies.json @@ -0,0 +1 @@ +{"docs/system_design/20260326152929.json": ["docs/prd/20260326152929.json"], "docs/task/20260326152929.json": ["docs/system_design/20260326152929.json"], "quick_sort_js/quickSort.js": ["docs/task/20260326152929.json", "docs/system_design/20260326152929.json"], "quick_sort_js/index.js": ["docs/task/20260326152929.json", "docs/system_design/20260326152929.json"]} \ No newline at end of file diff --git a/docs/prd/20260326152929.json b/docs/prd/20260326152929.json new file mode 100644 index 0000000..f471ec4 --- /dev/null +++ b/docs/prd/20260326152929.json @@ -0,0 +1 @@ +{"Language":"zh_cn","Programming Language":"JavaScript","Original Requirements":"一个JS写的数字的快速排序程序，无需UI，尽量简单","Project Name":"quick_sort_js","Product Goals":["实现简洁高效的快速排序算法","代码易于理解和维护","确保排序结果的正确性和性能"],"User Stories":["作为开发者，我希望能够对任意数字数组进行快速排序","作为开发者，我希望排序函数能够处理边界情况，如空数组或单元素数组","作为开发者，我希望代码简洁易读，方便直接引用或修改","作为开发者，我希望能够通过控制台输出验证排序结果"],"Competitive Analysis":["Lodash sortBy: 功能强大但库体积较大，适合复杂项目","Array.prototype.sort: 原生方法，简单易用，但排序算法不固定","bubble-sort-js: 冒泡排序实现，简单但性能较差","merge-sort-js: 归并排序实现，稳定但代码相对复杂","timsort: 高性能混合排序，功能强大但实现复杂","fast-sort: 功能丰富，支持多种排序方式，但依赖较多","简单手写快速排序: 轻量、无依赖，代码简洁，适合学习和小型项目"],"Competitive Quadrant Chart":"quadrantChart\n title \"排序库的简洁性与性能对比\"\n x-axis \"低性能\" --> \"高性能\"\n y-axis \"复杂\" --> \"简洁\"\n quadrant-1 \"理想选择\"\n quadrant-2 \"需要优化\"\n quadrant-3 \"不推荐\"\n quadrant-4 \"性能优先\"\n \"Lodash sortBy\": [0.7, 0.4]\n \"Array.prototype.sort\": [0.6, 0.8]\n \"bubble-sort-js\": [0.2, 0.7]\n \"merge-sort-js\": [0.65, 0.45]\n \"timsort\": [0.85, 0.25]\n \"fast-sort\": [0.75, 0.35]\n \"Our Target Product\": [0.75, 0.85]","Requirement Analysis":"该项目要求使用JavaScript实现一个快速排序算法，核心需求是对数字数组进行排序。无需任何UI界面，代码应尽量简单明了。快速排序是一种高效的分治排序算法，平均时间复杂度为O(n log n)。实现时需考虑：选取基准元素、分区操作、递归排序子数组，同时需处理空数组和单元素等边界情况。","Requirement Pool":[["P0","实现核心快速排序函数，能够对数字数组进行升序排序"],["P0","处理边界情况：空数组、单元素数组、已排序数组"],["P1","在代码中提供示例调用，通过console.log输出排序结果以便验证"],["P1","代码添加必要注释，说明算法步骤和逻辑"],["P2","支持可选的降序排序参数"]],"UI Design draft":"无UI设计需求。程序仅包含纯JavaScript逻辑代码，通过Node.js或浏览器控制台运行，使用console.log输出排序前后的数组结果进行验证。","Anything UNCLEAR":"目前需求较为明确。可进一步确认的点：1) 是否需要支持降序排序；2) 是否需要处理非数字元素的过滤；3) 运行环境是Node.js还是浏览器环境（不影响核心实现）。"} \ No newline at end of file diff --git a/docs/requirement.txt b/docs/requirement.txt new file mode 100644 index 0000000..6242749 --- /dev/null +++ b/docs/requirement.txt @@ -0,0 +1 @@ +一个JS写的数字的快速排序程序，无需UI，尽量简单 \ No newline at end of file diff --git a/docs/system_design/20260326152929.json b/docs/system_design/20260326152929.json new file mode 100644 index 0000000..6e879b6 --- /dev/null +++ b/docs/system_design/20260326152929.json @@ -0,0 +1 @@ +{"Implementation approach":"实现一个纯JavaScript的快速排序算法，无需任何第三方依赖库。采用经典的分治策略：选取基准元素（pivot），将数组分为小于、等于、大于基准的三个部分，递归排序后合并。同时支持升序/降序参数，处理边界情况（空数组、单元素数组），并通过console.log提供示例验证。代码结构简单，仅需两个文件：核心排序模块和入口示例文件。","File list":["index.js","quickSort.js"],"Data structures and interfaces":"\nclassDiagram\n class QuickSort {\n +quickSort(arr: number[], descending: boolean) number[]\n -partition(arr: number[], descending: boolean) object\n }\n class Main {\n +run() void\n }\n Main --> QuickSort : uses\n","Program call flow":"\nsequenceDiagram\n participant M as Main (index.js)\n participant QS as QuickSort (quickSort.js)\n\n M->>M: 定义测试数组 testArrays\n M->>QS: quickSort([], false)\n QS-->>M: 返回 []\n M->>M: console.log 输出空数组结果\n\n M->>QS: quickSort([42], false)\n QS-->>M: 返回 [42]\n M->>M: console.log 输出单元素结果\n\n M->>QS: quickSort([3,6,8,10,1,2,1], false)\n QS->>QS: 选取 pivot = arr[middle]\n QS->>QS: 分区为 left, middle, right\n QS->>QS: quickSort(left, false) 递归\n QS->>QS: quickSort(right, false) 递归\n QS-->>M: 返回升序排序结果\n M->>M: console.log 输出升序结果\n\n M->>QS: quickSort([3,6,8,10,1,2,1], true)\n QS->>QS: 选取 pivot = arr[middle]\n QS->>QS: 分区为 left(>pivot), middle, right(>QS: quickSort(left, true) 递归\n QS->>QS: quickSort(right, true) 递归\n QS-->>M: 返回降序排序结果\n M->>M: console.log 输出降序结果\n\n M->>QS: quickSort([1,2,3,4,5], false)\n QS-->>M: 返回已排序数组\n M->>M: console.log 输出已排序数组结果\n","Anything UNCLEAR":"1) 降序排序参数已作为可选功能（P2）纳入实现，默认为升序；2) 非数字元素过滤未在需求中明确要求，本实现假设输入均为数字数组；3) 运行环境兼容Node.js和浏览器，不影响核心逻辑。"} \ No newline at end of file diff --git a/docs/task/20260326152929.json b/docs/task/20260326152929.json new file mode 100644 index 0000000..42e8a3a --- /dev/null +++ b/docs/task/20260326152929.json @@ -0,0 +1 @@ +{"Required packages":["No third-party dependencies required"],"Required Other language third-party packages":["No third-party dependencies required"],"Logic Analysis":[["quickSort.js","包含 QuickSort 核心模块。实现 quickSort(arr: number[], descending: boolean) 公开方法：处理边界情况（空数组、单元素数组直接返回）；选取中间元素作为 pivot；调用内部 partition 私有逻辑将数组分为 left（小于pivot）、middle（等于pivot）、right（大于pivot）三部分；根据 descending 参数决定升序或降序递归合并。无外部依赖，使用 module.exports 导出 quickSort 函数。"],["index.js","包含 Main 入口模块。实现 run() 函数：从 quickSort.js 导入 quickSort（require('./quickSort')）；定义多组测试数组 testArrays，包括空数组、单元素数组、普通乱序数组、已排序数组；依次调用 quickSort 进行升序和降序排序，并通过 console.log 输出验证结果。依赖 quickSort.js，需在 quickSort.js 完成后实现。"]],"Task list":["quickSort.js","index.js"],"Full API spec":"","Shared Knowledge":"`quickSort.js` 是项目核心模块，导出唯一公共函数 `quickSort(arr, descending)`。参数说明：`arr` 为待排序的数字数组，`descending` 为布尔值（默认 false 表示升序，true 表示降序）。返回值为排序后的新数组，不修改原数组。边界情况处理：空数组和单元素数组直接返回原数组。`index.js` 通过 `require('./quickSort')` 引入该函数并执行示例验证。","Anything UNCLEAR":"1) 降序排序参数 `descending` 默认值为 false（升序），调用时可选传入 true 实现降序，已明确纳入实现；2) 本实现假设输入均为数字数组，不处理非数字元素过滤，若后续有混合类型输入需求需额外扩展；3) 代码兼容 Node.js 运行环境（使用 CommonJS module.exports/require），同时核心逻辑也可在浏览器环境中使用。"} \ No newline at end of file diff --git a/quick_sort_js/index.js b/quick_sort_js/index.js new file mode 100644 index 0000000..8a17472 --- /dev/null +++ b/quick_sort_js/index.js @@ -0,0 +1,54 @@ +## index.js + +/** + * @fileoverview Main entry module for demonstrating the QuickSort algorithm. + * Runs multiple test cases including edge cases and typical scenarios, + * outputting results via console.log for verification. + * + * @module Main + */ + +'use strict'; + +const quickSort = require('./quickSort'); + +/** + * Runs all QuickSort demonstration test cases and logs results to console. + * Tests include: empty array, single-element array, unsorted array (ascending + * and descending), and an already-sorted array. + * + * @returns {void} + */ +function run() { + /** @type {Array<{label: string, arr: number[]}>} */ + const testCases = [ + { label: 'Empty array', arr: [] }, + { label: 'Single element', arr: [42] }, + { label: 'Unsorted array', arr: [3, 6, 8, 10, 1, 2, 1] }, + { label: 'Already sorted array', arr: [1, 2, 3, 4, 5] }, + { label: 'Reverse sorted array', arr: [9, 7, 5, 3, 1] }, + { label: 'Array with duplicates', arr: [4, 2, 4, 1, 4, 3] }, + ]; + + console.log('========== QuickSort Algorithm Demo ==========\n'); + + testCases.forEach(({ label, arr }) => { + const originalArr = [...arr]; + + // Ascending sort (default) + const ascResult = quickSort(arr, false); + console.log(`[${label}]`); + console.log(` Input: [${originalArr.join(', ')}]`); + console.log(` Ascending: [${ascResult.join(', ')}]`); + + // Descending sort + const descResult = quickSort(arr, true); + console.log(` Descending: [${descResult.join(', ')}]`); + console.log(); + }); + + console.log('========== Demo Complete =========='); +} + +// Execute the main run function +run(); diff --git a/quick_sort_js/quickSort.js b/quick_sort_js/quickSort.js new file mode 100644 index 0000000..eae5ecc --- /dev/null +++ b/quick_sort_js/quickSort.js @@ -0,0 +1,98 @@ +## quickSort.js + +/** + * @fileoverview QuickSort core module implementing the classic divide-and-conquer + * sorting algorithm with support for ascending and descending order. + * + * @module quickSort + */ + +'use strict'; + +/** + * Partitions the array into three parts based on the pivot element. + * The pivot is selected as the middle element of the array. + * + * @private + * @param {number[]} arr - The array to partition. + * @param {boolean} descending - If true, partition for descending order; + * otherwise partition for ascending order. + * @returns {{left: number[], middle: number[], right: number[]}} An object + * containing three sub-arrays: + * - left: elements less than pivot (ascending) or greater than pivot (descending) + * - middle: elements equal to pivot + * - right: elements greater than pivot (ascending) or less than pivot (descending) + */ +function partition(arr, descending) { + const pivotIndex = Math.floor(arr.length / 2); + const pivot = arr[pivotIndex]; + + const left = []; + const middle = []; + const right = []; + + for (let i = 0; i < arr.length; i++) { + const element = arr[i]; + + if (descending) { + // For descending order: left holds greater elements, right holds smaller elements + if (element > pivot) { + left.push(element); + } else if (element === pivot) { + middle.push(element); + } else { + right.push(element); + } + } else { + // For ascending order: left holds smaller elements, right holds greater elements + if (element < pivot) { + left.push(element); + } else if (element === pivot) { + middle.push(element); + } else { + right.push(element); + } + } + } + + return { left, middle, right }; +} + +/** + * Sorts an array of numbers using the QuickSort algorithm. + * Returns a new sorted array without modifying the original. + * + * @public + * @param {number[]} arr - The array of numbers to sort. + * @param {boolean} [descending=false] - If true, sorts in descending order; + * if false (default), sorts in ascending order. + * @returns {number[]} A new array containing the sorted elements. + * + * @example + * // Ascending sort (default) + * quickSort([3, 6, 8, 10, 1, 2, 1]); + * // Returns: [1, 1, 2, 3, 6, 8, 10] + * + * @example + * // Descending sort + * quickSort([3, 6, 8, 10, 1, 2, 1], true); + * // Returns: [10, 8, 6, 3, 2, 1, 1] + */ +function quickSort(arr, descending = false) { + // Boundary case: empty array or single-element array, return directly + if (!Array.isArray(arr) || arr.length <= 1) { + return arr; + } + + // Partition the array into left, middle, and right sub-arrays + const { left, middle, right } = partition(arr, descending); + + // Recursively sort left and right sub-arrays, then concatenate with middle + return [ + ...quickSort(left, descending), + ...middle, + ...quickSort(right, descending), + ]; +} + +module.exports = quickSort; diff --git a/requirements.txt b/requirements.txt new file mode 100644 index 0000000..280b340 --- /dev/null +++ b/requirements.txt @@ -0,0 +1 @@ +No third-party dependencies required \ No newline at end of file diff --git a/resources/competitive_analysis/20260326152929.mmd b/resources/competitive_analysis/20260326152929.mmd new file mode 100644 index 0000000..ddaafef --- /dev/null +++ b/resources/competitive_analysis/20260326152929.mmd @@ -0,0 +1,15 @@ +quadrantChart + title "排序库的简洁性与性能对比" + x-axis "低性能" --> "高性能" + y-axis "复杂" --> "简洁" + quadrant-1 "理想选择" + quadrant-2 "需要优化" + quadrant-3 "不推荐" + quadrant-4 "性能优先" + "Lodash sortBy": [0.7, 0.4] + "Array.prototype.sort": [0.6, 0.8] + "bubble-sort-js": [0.2, 0.7] + "merge-sort-js": [0.65, 0.45] + "timsort": [0.85, 0.25] + "fast-sort": [0.75, 0.35] + "Our Target Product": [0.75, 0.85] \ No newline at end of file diff --git a/resources/data_api_design/20260326152929.mmd b/resources/data_api_design/20260326152929.mmd new file mode 100644 index 0000000..e908da1 --- /dev/null +++ b/resources/data_api_design/20260326152929.mmd @@ -0,0 +1,10 @@ + +classDiagram + class QuickSort { + +quickSort(arr: number[], descending: boolean) number[] + -partition(arr: number[], descending: boolean) object + } + class Main { + +run() void + } + Main --> QuickSort : uses diff --git a/resources/prd/20260326152929.md b/resources/prd/20260326152929.md new file mode 100644 index 0000000..d190436 --- /dev/null +++ b/resources/prd/20260326152929.md @@ -0,0 +1,77 @@ +## Language + +zh_cn + +## Programming Language + +JavaScript + +## Original Requirements + +一个JS写的数字的快速排序程序，无需UI，尽量简单 + +## Project Name + +quick_sort_js + +## Product Goals + +- 实现简洁高效的快速排序算法 +- 代码易于理解和维护 +- 确保排序结果的正确性和性能 + +## User Stories + +- 作为开发者，我希望能够对任意数字数组进行快速排序 +- 作为开发者，我希望排序函数能够处理边界情况，如空数组或单元素数组 +- 作为开发者，我希望代码简洁易读，方便直接引用或修改 +- 作为开发者，我希望能够通过控制台输出验证排序结果 + +## Competitive Analysis + +- Lodash sortBy: 功能强大但库体积较大，适合复杂项目 +- Array.prototype.sort: 原生方法，简单易用，但排序算法不固定 +- bubble-sort-js: 冒泡排序实现，简单但性能较差 +- merge-sort-js: 归并排序实现，稳定但代码相对复杂 +- timsort: 高性能混合排序，功能强大但实现复杂 +- fast-sort: 功能丰富，支持多种排序方式，但依赖较多 +- 简单手写快速排序: 轻量、无依赖，代码简洁，适合学习和小型项目 + +## Competitive Quadrant Chart + +quadrantChart + title "排序库的简洁性与性能对比" + x-axis "低性能" --> "高性能" + y-axis "复杂" --> "简洁" + quadrant-1 "理想选择" + quadrant-2 "需要优化" + quadrant-3 "不推荐" + quadrant-4 "性能优先" + "Lodash sortBy": [0.7, 0.4] + "Array.prototype.sort": [0.6, 0.8] + "bubble-sort-js": [0.2, 0.7] + "merge-sort-js": [0.65, 0.45] + "timsort": [0.85, 0.25] + "fast-sort": [0.75, 0.35] + "Our Target Product": [0.75, 0.85] + +## Requirement Analysis + +该项目要求使用JavaScript实现一个快速排序算法，核心需求是对数字数组进行排序。无需任何UI界面，代码应尽量简单明了。快速排序是一种高效的分治排序算法，平均时间复杂度为O(n log n)。实现时需考虑：选取基准元素、分区操作、递归排序子数组，同时需处理空数组和单元素等边界情况。 + +## Requirement Pool + +- ['P0', '实现核心快速排序函数，能够对数字数组进行升序排序'] +- ['P0', '处理边界情况：空数组、单元素数组、已排序数组'] +- ['P1', '在代码中提供示例调用，通过console.log输出排序结果以便验证'] +- ['P1', '代码添加必要注释，说明算法步骤和逻辑'] +- ['P2', '支持可选的降序排序参数'] + +## UI Design draft + +无UI设计需求。程序仅包含纯JavaScript逻辑代码，通过Node.js或浏览器控制台运行，使用console.log输出排序前后的数组结果进行验证。 + +## Anything UNCLEAR + +目前需求较为明确。可进一步确认的点：1) 是否需要支持降序排序；2) 是否需要处理非数字元素的过滤；3) 运行环境是Node.js还是浏览器环境（不影响核心实现）。 + diff --git a/resources/seq_flow/20260326152929.mmd b/resources/seq_flow/20260326152929.mmd new file mode 100644 index 0000000..1c0489b --- /dev/null +++ b/resources/seq_flow/20260326152929.mmd @@ -0,0 +1,33 @@ + +sequenceDiagram + participant M as Main (index.js) + participant QS as QuickSort (quickSort.js) + + M->>M: 定义测试数组 testArrays + M->>QS: quickSort([], false) + QS-->>M: 返回 [] + M->>M: console.log 输出空数组结果 + + M->>QS: quickSort([42], false) + QS-->>M: 返回 [42] + M->>M: console.log 输出单元素结果 + + M->>QS: quickSort([3,6,8,10,1,2,1], false) + QS->>QS: 选取 pivot = arr[middle] + QS->>QS: 分区为 left, middle, right + QS->>QS: quickSort(left, false) 递归 + QS->>QS: quickSort(right, false) 递归 + QS-->>M: 返回升序排序结果 + M->>M: console.log 输出升序结果 + + M->>QS: quickSort([3,6,8,10,1,2,1], true) + QS->>QS: 选取 pivot = arr[middle] + QS->>QS: 分区为 left(>pivot), middle, right(>QS: quickSort(left, true) 递归 + QS->>QS: quickSort(right, true) 递归 + QS-->>M: 返回降序排序结果 + M->>M: console.log 输出降序结果 + + M->>QS: quickSort([1,2,3,4,5], false) + QS-->>M: 返回已排序数组 + M->>M: console.log 输出已排序数组结果 diff --git a/resources/system_design/20260326152929.md b/resources/system_design/20260326152929.md new file mode 100644 index 0000000..d4780c1 --- /dev/null +++ b/resources/system_design/20260326152929.md @@ -0,0 +1,64 @@ +## Implementation approach + +实现一个纯JavaScript的快速排序算法，无需任何第三方依赖库。采用经典的分治策略：选取基准元素（pivot），将数组分为小于、等于、大于基准的三个部分，递归排序后合并。同时支持升序/降序参数，处理边界情况（空数组、单元素数组），并通过console.log提供示例验证。代码结构简单，仅需两个文件：核心排序模块和入口示例文件。 + +## File list + +- index.js +- quickSort.js + +## Data structures and interfaces + + +classDiagram + class QuickSort { + +quickSort(arr: number[], descending: boolean) number[] + -partition(arr: number[], descending: boolean) object + } + class Main { + +run() void + } + Main --> QuickSort : uses + + +## Program call flow + + +sequenceDiagram + participant M as Main (index.js) + participant QS as QuickSort (quickSort.js) + + M->>M: 定义测试数组 testArrays + M->>QS: quickSort([], false) + QS-->>M: 返回 [] + M->>M: console.log 输出空数组结果 + + M->>QS: quickSort([42], false) + QS-->>M: 返回 [42] + M->>M: console.log 输出单元素结果 + + M->>QS: quickSort([3,6,8,10,1,2,1], false) + QS->>QS: 选取 pivot = arr[middle] + QS->>QS: 分区为 left, middle, right + QS->>QS: quickSort(left, false) 递归 + QS->>QS: quickSort(right, false) 递归 + QS-->>M: 返回升序排序结果 + M->>M: console.log 输出升序结果 + + M->>QS: quickSort([3,6,8,10,1,2,1], true) + QS->>QS: 选取 pivot = arr[middle] + QS->>QS: 分区为 left(>pivot), middle, right(>QS: quickSort(left, true) 递归 + QS->>QS: quickSort(right, true) 递归 + QS-->>M: 返回降序排序结果 + M->>M: console.log 输出降序结果 + + M->>QS: quickSort([1,2,3,4,5], false) + QS-->>M: 返回已排序数组 + M->>M: console.log 输出已排序数组结果 + + +## Anything UNCLEAR + +1) 降序排序参数已作为可选功能（P2）纳入实现，默认为升序；2) 非数字元素过滤未在需求中明确要求，本实现假设输入均为数字数组；3) 运行环境兼容Node.js和浏览器，不影响核心逻辑。 +