Submission #535326

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
535326	2022-03-10 02:58:08	amunduzbaev	Snake Escaping (JOI18_snake_escaping)	C++17	22 / 100	1082 ms	65536 KiB

snake_escaping

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#include "bits/stdc++.h"
using namespace std;
 
#define ar array
 
const int N = 20;
int dp[2][(1 << N) + 5][N];
int a[(1 << N) + 5];
 
signed main(){
  ios::sync_with_stdio(0); cin.tie(0);
  
  int n, m; cin>>n>>m;
  string s; cin>>s;
  for(int i=0;i<(1 << n);i++) a[i] = s[i] - '0';
  s.clear();
  for(int mask=(1 << n) - 1;~mask;mask--){
    int res = a[mask];
    for(int i=n-1;~i;i--){
      if(!(mask >> i & 1)){
        res += dp[0][mask | (1 << i)][i];
      }
      dp[0][mask][i] = res;
    }
  }
  
  for(int mask=0;mask<(1 << n);mask++){
    int res = a[mask];
    for(int i=n-1;~i;i--){
      if(mask >> i & 1){
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 10 / 10
• Subtask 4: 0 / 53
• Subtask 5: 0 / 25