Link to this code:
https://cses.fi/paste/c3f778335e404bc4881157/
/*
2024 cùng những điều ước.
*/
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define sz(x) (int)(x.size())
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
typedef long long ll;
typedef pair<int, int> ii;
const ll LINF = 1e18;
const int INF = 1e9;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
template<typename T>
bool maximize(T& a, const T& b) {
if (b < a) return false;
a = b;
return true;
}
template<typename T>
bool minimize(T& a, const T& b) {
if (a < b) return false;
a = b;
return true;
}
const int MOD = 1e9 + 7;
ll binpow(ll a, ll b) {
ll ans = 1;
for (; b > 0; b >>= 1) {
if (b & 1) ans = ans * a % MOD;
a = a * a % MOD;
}
return ans;
}
signed main() {
ios::sync_with_stdio(0); cin.tie(0);
int t; cin >> t;
while (t--) {
int a, b;
cin >> a >> b;
cout << binpow(a, b) << '\n';
}
return 0;
}