Submission #788628

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
788628	2023-07-20 12:20:44	WLZ	Star Trek (CEOI20_startrek)	C++17	100 / 100	65 ms	16360 KiB

startrek

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#include <bits/stdc++.h>
using namespace std;
 
const long long MOD = (long long) 1e9 + 7;
int n;
long long d;
vector< vector<int> > g;
vector<bool> lose;
vector<int> lose_child, crit_win, crit_lose, crit;
long long l, e;
long long modpow(long long b, long long p) {
  if (p == 0) {
    return 1;
  }
  long long ans = modpow((b * b) % MOD, p / 2);
  if (p % 2 == 1) {
    ans = (ans * b) % MOD;
  }
  return ans;
}
long long inv(long long x) {
  return modpow(x, MOD - 2);
}
long long mul(long long x, long long y) {
  return (x * y) % MOD;
}
 
 
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