Submission #598642

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
598642	2022-07-18 15:49:37	Asymmetry	Snake Escaping (JOI18_snake_escaping)	C++17	100 / 100	1127 ms	42312 KiB

snake_escaping

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#include<bits/stdc++.h>
using namespace std;
using LL=long long;
#define FOR(i,l,r) for(int i=(l);i<=(r);++i)
#define REP(i,n) FOR(i,0,(n)-1)
#define ssize(x) int(x.size())
template<class A,class B>auto&operator<<(ostream&o,pair<A,B>p){return o<<'('<<p.first<<", "<<p.second<<')';}
template<class T>auto operator<<(ostream&o,T x)->decltype(x.end(),o){o<<'{';int i=0;for(auto e:x)o<<(", ")+2*!i++<<e;return o<<'}';}
#ifdef DEBUG
#define debug(x...) cerr<<"["#x"]: ",[](auto...$){((cerr<<$<<"; "),...)<<'\n';}(x)
#else
#define debug(...) {}
#endif
int main() {
  cin.tie(0)->sync_with_stdio(0);
  int L, Q;
  cin >> L >> Q;
  vector<int> t(1 << L);
  for (int &i : t) {
    char c;
    cin >> c;
    i = c - '0';
  }
  auto r = t;
  REP (i, 1 << L) {
    if (i < (i ^ ((1 << L) - 1))) {
      swap(r[i], r[i ^ ((1 << L) - 1)]);
    }
  }
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 10 / 10
• Subtask 4: 53 / 53
• Subtask 5: 25 / 25