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  1. #include "bits/stdc++.h"
  2. using namespace std;
  3.  
  4. #define ll long long
  5. #define ld long double
  6. const ll M = 1e9 + 7;
  7.  
  8. ll t, n, m;
  9.  
  10. ll pow(ll n, ll m)
  11. {
  12.     ll res = 1;
  13.     while (m)
  14.     {
  15.         if (m & 1)
  16.             res = (res * n) % M;
  17.         n = (n * n) % M;
  18.         m >>= 1;
  19.     }
  20.     return res;
  21. }
  22.  
  23. int32_t main()
  24. {
  25.     ios::sync_with_stdio(0);
  26.     cin.tie(0);
  27.     cout.tie(0);
  28.  
  29.     cin >> t;
  30.     while (t--)
  31.     {
  32.         cin >> n >> m;
  33.  
  34.         ll x = pow(2, n) - 1;
  35.         ll ans = pow(x, m) % M;
  36.  
  37.         cout << ans << '\n';
  38.     }
  39. }
Success #stdin #stdout 0.01s 5312KB
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https://ideone.com/cLnrDK
language:
C++ (gcc 8.3)
created:
8 days ago
visibility:
public

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