HDU-1061-Rightmost Digit

#include"bits/stdc++.h"using namespace std;int quick_pow(int n, int k) { ???int ans=1; ???while(k) { ???????if(k & 1) ???????ans = ans * n % 10; ???????n = n * n % 10; ???????k >>= 1; ???} ???return ans;}int main() { ???int T, n; ???cin >> T; ???while(T--) { ???????cin >> n; ???????cout << quick_pow(n%10,n) << endl; ???} ???return 0;}