C++ 函数性能优化：利用多线程和内存管理

#include <thread>
#include <vector>

void task(int n) {
  // 执行任务
}

int main() {
  std::vector<std::thread> threads;
  for (int i = 0; i < 10; i++) {
    threads.push_back(std::thread(task, i));
  }
  for (auto& thread : threads) {
    thread.join();
  }
  return 0;
}

#include <memory>

class MyClass {
public:
  MyClass(int x) : x(x) {}
  ~MyClass() {}

private:
  int x;
};

int main() {
  // 使用智能指针自动释放内存
  std::shared_ptr<MyClass> my_class(new MyClass(10));
  return 0;
}

#include <thread>
#include <vector>
#include <memory>

struct Data {
  int x;
  int y;
};

void process_data(std::shared_ptr<Data> data) {
  // 处理数据
}

int main() {
  std::vector<std::shared_ptr<Data>> data_vector;
  for (int i = 0; i < 100000; i++) {
    data_vector.push_back(std::make_shared<Data>(i, i));
  }

  std::vector<std::thread> threads;
  for (auto& data : data_vector) {
    threads.push_back(std::thread(process_data, data));
  }
  for (auto& thread : threads) {
    thread.join();
  }
  return 0;
}