Submission #213505

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
213505	2020-03-26 03:08:57	AQT	Snake Escaping (JOI18_snake_escaping)	C++14	75 / 100	2100 ms	15736 KiB

snake_escaping

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#include <bits/stdc++.h>
using namespace std;
int N, L, Q;
short arr[1<<20];
int pre[2][1<<20];
short cnt[3];
int msk;
vector<int> lst;
vector<short> v;
void rec(int n){
  if(n == -1){
    lst.emplace_back(msk);
    return;
  }
  msk <<= 1;  
  if(v[n] == 2){
    rec(n-1);
    msk |= 1;
    rec(n-1);
  }
  else{
    msk |= v[n];
    rec(n-1);
  }
  msk >>= 1;
}
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 10 / 10
• Subtask 4: 53 / 53
• Subtask 5: 0 / 25