[
  {
    "id": 1,
    "name": "计算机的基本构成",
    "original_score": 1,
    "new_score": 2,
    "changed": true,
    "reason": "基础重要，竞赛环境必备"
  },
  {
    "id": 2,
    "name": "操作系统基本概念及常见操作",
    "original_score": 1,
    "new_score": 2,
    "changed": true,
    "reason": "环境操作基础，实用性提升"
  },
  {
    "id": 3,
    "name": "计算机网络和Internet基本概念",
    "original_score": 1,
    "new_score": 1,
    "changed": false,
    "reason": "竞赛中应用较少"
  },
  {
    "id": 4,
    "name": "计算机的历史和常见用途",
    "original_score": 1,
    "new_score": 1,
    "changed": false,
    "reason": "理论性强，实用性低"
  },
  {
    "id": 5,
    "name": "NOI相关活动的历史与规则",
    "original_score": 1,
    "new_score": 1,
    "changed": false,
    "reason": "非技术核心内容"
  },
  {
    "id": 6,
    "name": "位、字节与字",
    "original_score": 1,
    "new_score": 3,
    "changed": true,
    "reason": "位运算基础，竞赛常用"
  },
  {
    "id": 7,
    "name": "程序设计语言及编译运行基本概念",
    "original_score": 1,
    "new_score": 2,
    "changed": true,
    "reason": "理解编译流程重要"
  },
  {
    "id": 8,
    "name": "文件/目录的图形界面操作",
    "original_score": 1,
    "new_score": 1,
    "changed": false,
    "reason": "竞赛中应用少"
  },
  {
    "id": 9,
    "name": "Windows/Linux集成开发环境使用",
    "original_score": 1,
    "new_score": 2,
    "changed": true,
    "reason": "开发环境熟悉度重要"
  },
  {
    "id": 10,
    "name": "编译命令g++的基本使用",
    "original_score": 1,
    "new_score": 3,
    "changed": true,
    "reason": "编译命令基础，实用性强"
  },
  {
    "id": 11,
    "name": "标识符、关键字、常量、变量、表达式",
    "original_score": 1,
    "new_score": 3,
    "changed": true,
    "reason": "编程基础，必备知识"
  },
  {
    "id": 12,
    "name": "常量与变量的命名、定义及作用",
    "original_score": 1,
    "new_score": 3,
    "changed": true,
    "reason": "基础语法，重要性提升"
  },
  {
    "id": 13,
    "name": "头文件与名字空间",
    "original_score": 2,
    "new_score": 3,
    "changed": true,
    "reason": "代码组织关键"
  },
  {
    "id": 14,
    "name": "编辑、编译、解释、调试概念",
    "original_score": 2,
    "new_score": 3,
    "changed": true,
    "reason": "调试能力重要"
  },
  {
    "id": 15,
    "name": "基本数据类型(int,long long,float,double,char,bool)",
    "original_score": 1,
    "new_score": 3,
    "changed": true,
    "reason": "类型理解基础"
  },
  {
    "id": 16,
    "name": "输入输出语句(cin/cout/scanf/printf)",
    "original_score": 2,
    "new_score": 3,
    "changed": true,
    "reason": "IO基础，频繁使用"
  },
  {
    "id": 17,
    "name": "条件语句(if/switch)",
    "original_score": 2,
    "new_score": 3,
    "changed": true,
    "reason": "控制流基础"
  },
  {
    "id": 18,
    "name": "循环语句(for/while/do while)",
    "original_score": 2,
    "new_score": 3,
    "changed": true,
    "reason": "循环结构核心"
  },
  {
    "id": 19,
    "name": "多层循环语句",
    "original_score": 3,
    "new_score": 4,
    "changed": true,
    "reason": "复杂度提升，常见考点"
  },
  {
    "id": 20,
    "name": "算术/关系/逻辑运算",
    "original_score": 1,
    "new_score": 3,
    "changed": true,
    "reason": "运算基础，频繁使用"
  },
  {
    "id": 21,
    "name": "位运算",
    "original_score": 2,
    "new_score": 5,
    "changed": true,
    "reason": "高频考点，难度较大"
  },
  {
    "id": 22,
    "name": "数学库常用函数",
    "original_score": 3,
    "new_score": 4,
    "changed": true,
    "reason": "数学思维增强"
  },
  {
    "id": 23,
    "name": "顺序/分支/循环结构",
    "original_score": 1,
    "new_score": 3,
    "changed": true,
    "reason": "基础结构，重要性提升"
  },
  {
    "id": 24,
    "name": "模块化程序设计与流程图",
    "original_score": 2,
    "new_score": 3,
    "changed": true,
    "reason": "代码组织与设计"
  },
  {
    "id": 25,
    "name": "数组与数组下标",
    "original_score": 1,
    "new_score": 4,
    "changed": true,
    "reason": "基础数据结构，应用广"
  },
  {
    "id": 26,
    "name": "二维数组与多维数组",
    "original_score": 3,
    "new_score": 4,
    "changed": true,
    "reason": "常见数据结构"
  },
  {
    "id": 27,
    "name": "字符数组与string类",
    "original_score": 2,
    "new_score": 4,
    "changed": true,
    "reason": "字符串处理基础"
  },
  {
    "id": 28,
    "name": "函数定义与调用、递归函数",
    "original_score": 2,
    "new_score": 5,
    "changed": true,
    "reason": "递归难点，重要考点"
  },
  {
    "id": 29,
    "name": "传值与传引用参数",
    "original_score": 3,
    "new_score": 4,
    "changed": true,
    "reason": "参数传递细节重要"
  },
  {
    "id": 30,
    "name": "结构体与联合体",
    "original_score": 3,
    "new_score": 4,
    "changed": true,
    "reason": "数据组织关键"
  },
  {
    "id": 31,
    "name": "指针与引用",
    "original_score": 4,
    "new_score": 5,
    "changed": true,
    "reason": "核心难点，区分度高"
  },
  {
    "id": 32,
    "name": "文件读写",
    "original_score": 2,
    "new_score": 3,
    "changed": true,
    "reason": "竞赛中偶尔应用"
  },
  {
    "id": 33,
    "name": "STL常用函数(min/max/swap/sort)",
    "original_score": 3,
    "new_score": 5,
    "changed": true,
    "reason": "高频实用，效率提升"
  },
  {
    "id": 34,
    "name": "STL容器(stack/queue/list/vector)",
    "original_score": 4,
    "new_score": 6,
    "changed": true,
    "reason": "竞赛必备，应用广泛"
  },
  {
    "id": 35,
    "name": "链表(单/双向/循环)",
    "original_score": 3,
    "new_score": 4,
    "changed": true,
    "reason": "数据结构基础"
  },
  {
    "id": 36,
    "name": "栈",
    "original_score": 3,
    "new_score": 5,
    "changed": true,
    "reason": "高频考点，应用广"
  },
  {
    "id": 37,
    "name": "队列",
    "original_score": 3,
    "new_score": 5,
    "changed": true,
    "reason": "高频考点，应用广"
  },
  {
    "id": 38,
    "name": "树的定义与基本概念",
    "original_score": 3,
    "new_score": 5,
    "changed": true,
    "reason": "基础数据结构"
  },
  {
    "id": 39,
    "name": "二叉树定义与基本性质",
    "original_score": 3,
    "new_score": 5,
    "changed": true,
    "reason": "基础树结构"
  },
  {
    "id": 40,
    "name": "树/二叉树的表示与存储",
    "original_score": 4,
    "new_score": 6,
    "changed": true,
    "reason": "存储实现关键"
  },
  {
    "id": 41,
    "name": "二叉树的遍历(前序/中序/后序)",
    "original_score": 4,
    "new_score": 6,
    "changed": true,
    "reason": "遍历是基础技能"
  },
  {
    "id": 42,
    "name": "完全二叉树定义、性质与数组表示",
    "original_score": 4,
    "new_score": 6,
    "changed": true,
    "reason": "重要树结构"
  },
  {
    "id": 43,
    "name": "哈夫曼树与哈夫曼编码",
    "original_score": 4,
    "new_score": 5,
    "changed": true,
    "reason": "经典算法，应用有限"
  },
  {
    "id": 44,
    "name": "二叉搜索树",
    "original_score": 4,
    "new_score": 5,
    "changed": true,
    "reason": "重要树结构"
  },
  {
    "id": 45,
    "name": "图的定义与相关概念",
    "original_score": 3,
    "new_score": 5,
    "changed": true,
    "reason": "图论基础"
  },
  {
    "id": 46,
    "name": "图的存储(邻接矩阵/邻接表)",
    "original_score": 4,
    "new_score": 6,
    "changed": true,
    "reason": "图论基础实现"
  },
  {
    "id": 47,
    "name": "算法概念",
    "original_score": 1,
    "new_score": 3,
    "changed": true,
    "reason": "基础理论重要"
  },
  {
    "id": 48,
    "name": "算法描述(自然语言/流程图/伪代码)",
    "original_score": 2,
    "new_score": 3,
    "changed": true,
    "reason": "表达能力提升"
  },
  {
    "id": 49,
    "name": "枚举法",
    "original_score": 1,
    "new_score": 3,
    "changed": true,
    "reason": "基础解题方法"
  },
  {
    "id": 50,
    "name": "模拟法",
    "original_score": 1,
    "new_score": 6,
    "changed": true,
    "reason": "高频考点，实用性强"
  },
  {
    "id": 51,
    "name": "贪心法",
    "original_score": 3,
    "new_score": 6,
    "changed": true,
    "reason": "高频且区分度高"
  },
  {
    "id": 52,
    "name": "递推法",
    "original_score": 3,
    "new_score": 5,
    "changed": true,
    "reason": "动态规划基础"
  },
  {
    "id": 53,
    "name": "递归法",
    "original_score": 4,
    "new_score": 6,
    "changed": true,
    "reason": "重要思维方式"
  },
  {
    "id": 54,
    "name": "二分法",
    "original_score": 4,
    "new_score": 7,
    "changed": true,
    "reason": "高频且效率关键"
  },
  {
    "id": 55,
    "name": "倍增法",
    "original_score": 4,
    "new_score": 7,
    "changed": true,
    "reason": "新增高效技巧"
  },
  {
    "id": 56,
    "name": "前缀和",
    "original_score": 3,
    "new_score": 5,
    "changed": true,
    "reason": "常用优化技巧"
  },
  {
    "id": 57,
    "name": "差分",
    "original_score": 4,
    "new_score": 6,
    "changed": true,
    "reason": "新增且实用"
  },
  {
    "id": 58,
    "name": "高精度运算",
    "original_score": 4,
    "new_score": 5,
    "changed": true,
    "reason": "应用有限但难度较高"
  },
  {
    "id": 59,
    "name": "排序基本概念",
    "original_score": 3,
    "new_score": 5,
    "changed": true,
    "reason": "基础且频繁"
  },
  {
    "id": 60,
    "name": "冒泡排序",
    "original_score": 3,
    "new_score": 3,
    "changed": false,
    "reason": "基础教学用"
  },
  {
    "id": 61,
    "name": "选择排序",
    "original_score": 3,
    "new_score": 3,
    "changed": false,
    "reason": "基础教学用"
  },
  {
    "id": 62,
    "name": "插入排序",
    "original_score": 3,
    "new_score": 3,
    "changed": false,
    "reason": "基础教学用"
  },
  {
    "id": 63,
    "name": "计数排序",
    "original_score": 3,
    "new_score": 4,
    "changed": true,
    "reason": "常用优化排序"
  },
  {
    "id": 64,
    "name": "深度优先搜索(DFS)",
    "original_score": 5,
    "new_score": 8,
    "changed": true,
    "reason": "高频关键算法"
  },
  {
    "id": 65,
    "name": "广度优先搜索(BFS)",
    "original_score": 5,
    "new_score": 8,
    "changed": true,
    "reason": "高频关键算法"
  },
  {
    "id": 66,
    "name": "图的深度优先遍历",
    "original_score": 4,
    "new_score": 7,
    "changed": true,
    "reason": "图论核心算法"
  },
  {
    "id": 67,
    "name": "图的广度优先遍历",
    "original_score": 4,
    "new_score": 7,
    "changed": true,
    "reason": "图论核心算法"
  },
  {
    "id": 68,
    "name": "泛洪算法(Flood Fill)",
    "original_score": 5,
    "new_score": 7,
    "changed": true,
    "reason": "常见应用，区分度高"
  },
  {
    "id": 69,
    "name": "动态规划基本思路",
    "original_score": 4,
    "new_score": 9,
    "changed": true,
    "reason": "拉开差距关键"
  },
  {
    "id": 70,
    "name": "简单一维动态规划",
    "original_score": 4,
    "new_score": 9,
    "changed": true,
    "reason": "基础DP，频繁考"
  },
  {
    "id": 71,
    "name": "简单背包类型动态规划",
    "original_score": 5,
    "new_score": 9,
    "changed": true,
    "reason": "高频难点"
  },
  {
    "id": 72,
    "name": "简单区间类型动态规划",
    "original_score": 5,
    "new_score": 9,
    "changed": true,
    "reason": "高频难点"
  },
  {
    "id": 73,
    "name": "自然数/整数/有理数/实数及运算",
    "original_score": 1,
    "new_score": 2,
    "changed": true,
    "reason": "基础数学知识"
  },
  {
    "id": 74,
    "name": "进制与进制转换",
    "original_score": 1,
    "new_score": 3,
    "changed": true,
    "reason": "竞赛常用基础"
  },
  {
    "id": 75,
    "name": "代数(初中部分)",
    "original_score": 1,
    "new_score": 2,
    "changed": true,
    "reason": "基础数学"
  },
  {
    "id": 76,
    "name": "几何(初中部分)",
    "original_score": 1,
    "new_score": 2,
    "changed": true,
    "reason": "基础数学"
  },
  {
    "id": 77,
    "name": "整除/因数/倍数/质数/合数",
    "original_score": 3,
    "new_score": 5,
    "changed": true,
    "reason": "数学基础，频繁考"
  },
  {
    "id": 78,
    "name": "取整",
    "original_score": 3,
    "new_score": 4,
    "changed": true,
    "reason": "数学技巧"
  },
  {
    "id": 79,
    "name": "模运算与取余",
    "original_score": 3,
    "new_score": 6,
    "changed": true,
    "reason": "高频数学技巧"
  },
  {
    "id": 80,
    "name": "整数唯一分解定理",
    "original_score": 3,
    "new_score": 5,
    "changed": true,
    "reason": "数学基础"
  },
  {
    "id": 81,
    "name": "辗转相除法(欧几里得算法)",
    "original_score": 3,
    "new_score": 6,
    "changed": true,
    "reason": "高频数学算法"
  },
  {
    "id": 82,
    "name": "素数筛法(埃氏筛/线性筛)",
    "original_score": 4,
    "new_score": 7,
    "changed": true,
    "reason": "高频数学算法"
  },
  {
    "id": 83,
    "name": "集合",
    "original_score": 2,
    "new_score": 3,
    "changed": true,
    "reason": "基础数学概念"
  },
  {
    "id": 84,
    "name": "加法原理",
    "original_score": 2,
    "new_score": 3,
    "changed": true,
    "reason": "组合数学基础"
  },
  {
    "id": 85,
    "name": "乘法原理",
    "original_score": 2,
    "new_score": 3,
    "changed": true,
    "reason": "组合数学基础"
  },
  {
    "id": 86,
    "name": "排列",
    "original_score": 4,
    "new_score": 5,
    "changed": true,
    "reason": "组合数学重要"
  },
  {
    "id": 87,
    "name": "组合",
    "original_score": 4,
    "new_score": 5,
    "changed": true,
    "reason": "组合数学重要"
  },
  {
    "id": 88,
    "name": "杨辉三角",
    "original_score": 4,
    "new_score": 4,
    "changed": false,
    "reason": "基础数学工具"
  },
  {
    "id": 89,
    "name": "ASCII码",
    "original_score": 2,
    "new_score": 3,
    "changed": true,
    "reason": "字符串处理基础"
  }
]