如何在c++中删除多个结构中的元素？

#include <iostream>

struct Person {
    std::string name;
    int age;
};

int main() {
    const int size = 5;
    Person* people = new Person[size];

    // 初始化结构数组
    people[0] = {"Alice", 25};
    people[1] = {"Bob", 30};
    people[2] = {"Charlie", 35};
    people[3] = {"David", 40};
    people[4] = {"Eve", 45};

    // 删除年龄大于等于40的人
    int newSize = size;
    for (int i = 0; i < newSize; i++) {
        if (people[i].age >= 40) {
            // 后面的元素向前移动
            for (int j = i; j < newSize - 1; j++) {
                people[j] = people[j + 1];
            }
            newSize--;  // 更新数组大小
            i--;  // 继续检查当前位置的元素
        }
    }

    // 输出删除后的结果
    for (int i = 0; i < newSize; i++) {
        std::cout << "Name: " << people[i].name << ", Age: " << people[i].age << std::endl;
    }

    // 释放内存
    delete[] people;

    return 0;
}