大小未知的字符串数组

#include<iostream>
#include<string>
#include<vector>

int main() {
    int n;
    std::cout << "Enter the size of the array: ";
    std::cin >> n;

    std::vector<std::string> arr(n);

    for (int i = 0; i < n; i++) {
        std::cout << "Enter string " << i+1 << ": ";
        std::cin >> arr[i];
    }

    for (int i = 0; i < n; i++) {
        std::cout << "String " << i+1 << ": "<< arr[i]<< std::endl;
    }

    return 0;
}