# | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
22538 | 2017-04-30T05:25:32 Z | AJAE(#998, nona1314, adman, wowoto9772) | Fully Generate (KRIII5_FG) | C++11 | 0 ms | 0 KB |
#include <cstdio> #include <vector> using namespace std; using ll = long long; ll MMOD = 1000000007; ll SEXER; ll popo(ll a, ll p) { ll r = 1; while (p) { if (p & 1) { r *= a; if(r >= MMOD) r %= MMOD; } a *= a; if(a >= MMOD) a %= MMOD; p >>= 1LL; } return r; } ll arr[31347599]; int sss[6] = { 0,1,2,4,12,36 }; int main() { SEXER = sqrt(MMOD); ll n; ll cnt = 0; ll ans = 1; scanf("%lld", &n); if (n <= 5) { printf("%d\n", sss[n]); return 0; } ll gsize = 4; arr[0] = 0; arr[1] = 1; arr[2] = 2; arr[3] = 2; cnt = 1 + 2 + 2; ans = 2 * 2 * 3 * 3; bool sw = true; for (int i = 3; sw; ++i) { ll &tmp = arr[i]; ll ttmp = 1; int st = gsize; for (ll j = 0; j<tmp; ++j) { arr[gsize] = i; gsize++; cnt += i; if (cnt >= n) { ans *= popo(ttmp, i); if(ans >= MMOD) ans %= MMOD; arr[gsize - 1] = i - (cnt - n); ans *= popo(gsize - 1, arr[gsize - 1]); if (ans >= MMOD) ans %= MMOD; printf("%lld\n", ans); return 0; } ttmp *= (gsize - 1); if(ttmp >= MMOD) ttmp %= MMOD; } ans *= popo(ttmp, i); if(ans >= MMOD) ans %= MMOD; } return 0; }