first init

array/1binary search/35search-insert-position/c++/CMakeLists.txt

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+# 1. 指定CMake最低版本要求
+cmake_minimum_required(VERSION 3.10)
+
+
+# 2. 设置项目信息
+project(
+    LeetCodeSolution         # 项目名称（可根据题目修改）
+    VERSION 1.0.0           # 项目版本
+    DESCRIPTION "LeetCode Solution Template"
+    LANGUAGES CXX           # 支持的语言
+)
+
+# 3. 设置C++标准和编译特性
+set(CMAKE_CXX_STANDARD 17)       # 使用C++17标准
+set(CMAKE_CXX_STANDARD_REQUIRED ON)  # 必须支持指定标准
+set(CMAKE_CXX_EXTENSIONS OFF)    # 禁用编译器特有扩展
+
+# 4. 配置构建类型和编译选项
+if(NOT CMAKE_BUILD_TYPE)
+    set(CMAKE_BUILD_TYPE Debug) # 默认构建类型为Debug（便于调试）
+endif()
+
+# 公共编译选项
+add_compile_options(
+    "$<$<CONFIG:Release>:-O2>"       # Release模式优化
+    "$<$<CONFIG:Debug>:-g>"          # Debug模式包含调试信息
+    "$<$<CONFIG:Debug>:-O0>"          # Debug模式不优化
+)
+
+# 平台特定选项
+if(MSVC)
+    add_compile_options(/W3)         # MSVC: 警告等级3（刷题时不需要太严格）
+else()
+    add_compile_options(-Wall -Wextra) # GCC/Clang: 常用警告
+endif()
+
+# 5. 源文件收集
+file(GLOB_RECURSE SOURCES "src/*.cpp")   # 递归收集源文件
+
+# 6. 创建可执行文件目标
+add_executable(${PROJECT_NAME} ${SOURCES})
+
+# 7. 自定义目标：运行程序
+add_custom_target(run
+    COMMAND ${PROJECT_NAME}
+    DEPENDS ${PROJECT_NAME}
+    COMMENT "运行 ${PROJECT_NAME}..."
+    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+)

array/1binary search/35search-insert-position/c++/src/main.cpp

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+#include <iostream>
+#include <vector>
+#include <string>
+#include <cassert>
+
+using namespace std;
+
+/**
+ * LeetCode 解题模板
+ *
+ * 使用方法：
+ * 1. 在 Solution 类中实现你的算法
+ * 2. 在 main 函数中添加测试用例
+ * 3. 编译运行：mkdir build && cd build && cmake .. && make && ./Solution
+ */
+class Solution
+{
+public:
+    /**
+     * 示例函数：搜索插入位置
+     *
+     * @param nums 排序数组
+     * @param target 目标值
+     * @return 目标值的索引，如果不存在则返回插入位置
+     */
+    int searchInsert(vector<int> &nums, int target)
+    {
+        left = 0;
+        right = nums.size() - 1;
+        while (left < right)
+        {
+            int mid = (left + right) >> 1;
+            if (nums[mid] == target)
+            {
+                return mid;
+            }
+            else if (nums[mid] < target)
+            {
+                left = mid + 1;
+            }
+            else
+            {
+                right = mid;
+            }
+        }
+        return target<=nums[left]?left:left+1;
+    }
+
+private:
+    int left;
+    int right;
+};
+
+// 辅助函数：打印测试结果
+void printTestResult(const string &testName, bool passed)
+{
+    cout << testName << ": " << (passed ? "pass" : "fail") << endl;
+}
+
+// 辅助函数：比较两个整数
+bool assertEquals(int actual, int expected)
+{
+    return actual == expected;
+}
+
+int main()
+{
+    Solution solution;
+
+    // 测试用例 1: 目标值存在于数组中
+    {
+        vector<int> nums = {1, 3, 5, 6};
+        int target = 5;
+        int result = solution.searchInsert(nums, target);
+        int expected = 2;
+        cout<< "result: "<<result<<", expected: "<<expected<<endl;
+        printTestResult("test 1: target exists", assertEquals(result, expected));
+    }
+
+    // 测试用例 2: 目标值不存在，应插入到中间位置
+    {
+        vector<int> nums = {1, 3, 5, 6};
+        int target = 2;
+        int result = solution.searchInsert(nums, target);
+        int expected = 1;
+        cout<< "result: "<<result<<", expected: "<<expected<<endl;
+        printTestResult("test 2: insert middle", assertEquals(result, expected));
+    }
+
+    // 测试用例 3: 目标值大于所有元素
+    {
+        vector<int> nums = {1, 3, 5, 6};
+        int target = 7;
+        int result = solution.searchInsert(nums, target);
+        int expected = 4;
+        cout<< "result: "<<result<<", expected: "<<expected<<endl;
+        printTestResult("test 3: insert end", assertEquals(result, expected));
+    }
+
+    // 测试用例 4: 目标值小于所有元素
+    {
+        vector<int> nums = {1, 3, 5, 6};
+        int target = 0;
+        int result = solution.searchInsert(nums, target);
+        int expected = 0;
+        cout<< "result: "<<result<<", expected: "<<expected<<endl;
+        printTestResult("test 4: insert beginning", assertEquals(result, expected));
+    }
+
+    cout << "\nAll test cases pass." << endl;
+
+    return 0;
+}