Submission #1157095

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1157095	2025-02-25 09:00:24	RSAMSD	Star Trek (CEOI20_startrek)	C++20	50 / 100	1095 ms	13824 KiB

startrek

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#include<bits/stdc++.h>
using namespace std;
const int f = 1e5+10;
const long long mod = 1e9+7;
vector<int> g[f];
long long dp[f];
long long ways[f];
bool B[f];
bool F[f];
struct matric{
  long long id[5][5];
  matric(){
    for(int i =0;i<5;i++){
      for(int j =0;j<5;j++){
        id[i][j] =0;
      }
    }
  }
};
long long powmod(long long a,long long p){
  long long ans = 1;
  while(p>0){
    if(p&1)ans = ans*a%mod;
    p/=2;a = a*a%mod;
  }
  return ans;
}
matric makemat(long long x,long long n){
  matric a;
  a.id[0][0] = (x+mod)%mod;
 
 
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