问如何使用11位数字

EN

#include <iostream>
#include <string>
using namespace std;

struct NOTE {
    string name;
    int number;
    int birthday[3];
};

int main()
{
    //int *tel = new int[100];
    //int *ptr = new int;
    NOTE arr[3];
    cout << "Please enter quality names and numbers or program stop working!";
    for (int i = 0; i < 3; i++) {
        cout << "Man #" << i + 1 << "\n";
        cout << "Name: ";
        cin >> arr[i].name;
        cout << "Number: ";
        //*tel = arr[i].number;
        //cin >> *tel;
        cin >> arr[i].number;
        cout << "Year: ";
        cin >> arr[i].birthday[0];
        cout << "Month: ";
        cin >> arr[i].birthday[1];
        cout << "Day: ";
        cin >> arr[i].birthday[2];
    }
}