我要求用户输入大小和数组，但是当我打印矢量时，它仅显示“0"作为输出

I declared a vector and trying to put size and values and printing it

#include<iostream>
#include<vector>
using namespace std;
int main()
{
    int s;          
    cin>>s;                   //taking size of vector
    vector <int> arr(s);
    int input;
    while (cin >> input)
       {arr.push_back(input);}     //inserting the values in array
    for(int i=0;i<s;i++)
        cout<<" "<<arr[i];         //printing the values
}

我的输入5

1 2 3 4 5

预期输出

1 2 3 4 5

电流输出0 0 0 0 0

vector <int> arr(s);