有没有一种方法可以在复制数据的同时做nth_element？

#include <iostream>
#include <vector>
#include <algorithm>
#include <omp.h>

int main() {
    std::vector<int> data = {5, 2, 9, 1, 7, 3, 8, 6, 4};

    // 复制数据
    std::vector<int> copy_data(data.size());
    #pragma omp parallel for
    for (int i = 0; i < data.size(); ++i) {
        copy_data[i] = data[i];
    }

    // 并行化nth_element操作
    #pragma omp parallel
    {
        int thread_id = omp_get_thread_num();
        int num_threads = omp_get_num_threads();

        int chunk_size = data.size() / num_threads;
        int start = thread_id * chunk_size;
        int end = (thread_id == num_threads - 1) ? data.size() : start + chunk_size;

        std::nth_element(copy_data.begin() + start, copy_data.begin() + start + 1, copy_data.begin() + end);
    }

    // 输出结果
    std::cout << "Original data: ";
    for (int num : data) {
        std::cout << num << " ";
    }
    std::cout << std::endl;

    std::cout << "Copy data with nth_element: ";
    for (int num : copy_data) {
        std::cout << num << " ";
    }
    std::cout << std::endl;

    return 0;
}