Submission #965420

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
965420	2024-04-18 13:42:56	four_specks	Snake Escaping (JOI18_snake_escaping)	C++17	100 / 100	551 ms	43460 KiB

snake_escaping

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#include <bits/stdc++.h>
using namespace std;
namespace {}
void solve() {
  int h, q;
  cin >> h >> q;
  uint32_t n = 1 << h;
  string a;
  cin >> a;
  vector<int> b(n);
  for (uint32_t x = 0; x < n; x++) {
    b[x] = a[x] - '0';
  }
  vector dp_sub = b, dp_super = b;
  for (int s = 0; s < h; s++) {
    for (uint32_t x = n; x + 1 > 0; x--) {
      if (x >> s & 1) {
        dp_sub[x] += dp_sub[x ^ (1u << s)];
      }
    }
    for (uint32_t x = 0; x < n; x++) {
      if (!(x >> s & 1)) {
        dp_super[x] += dp_super[x | (1u << s)];
      }
    }
  }
  for (int i = 0; i < q; i++) {
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 10 / 10
• Subtask 4: 53 / 53
• Subtask 5: 25 / 25