Submission #287839

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
287839	2020-09-01 03:57:29	MatheusLealV	Snake Escaping (JOI18_snake_escaping)	C++17	22 / 100	453 ms	26360 KiB

snake_escaping

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#include <bits/stdc++.h>
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define all(x) begin(x), end(x)
#define sz(x) (int)(x).size()
using namespace std;
typedef pair<int, int> pii;
#define N 350010
 
int n, q;
string t;
int ans[1600000], pow3[30], cost[1600000];
int get_mask(int mask, int i){
  return (mask/pow3[i]) % 3;
}
bool vis[N];
void gen(int mask){
  if(vis[mask]) return;
  vis[mask] = 1;
  for(int i = 0; i < n; i++){
    int value = get_mask(mask, i);
    if(value == 2){
      int L = mask, R = mask;
      L += -2*pow3[i] + pow3[i];
      R += -2*pow3[i];
      gen(L);
      gen(R);
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 10 / 10
• Subtask 4: 0 / 53
• Subtask 5: 0 / 25