oj.uz

답안 #1071728

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1071728 2024-08-23T10:33:55 Z ttamx Ancient Machine (JOI21_ancient_machine) C++17
0 / 100
 86 ms 8096 KB 
#include "Anna.h"
#include <bits/stdc++.h>

using namespace std;

void Anna(int n,vector<char> s){
  const int B=349;
  const int F=500;
  using BS = bitset<B>;
  vector<array<BS,2>> dp(F+1);
  auto add=[&](const BS &a,const BS &b){
    BS res;
    bool carry=0;
    for(int i=0;i<B;i++){
      res[i]=a[i]^b[i]^carry;
      carry=(a[i]&b[i])|((a[i]^b[i])&carry);
    }
    return res;
  };
  dp[1][0]=1;
  dp[1][1]=1;
  for(int i=2;i<=F;i++){
    dp[i][0]=add(dp[i-1][0],dp[i-1][1]);
    dp[i][1]=dp[i-1][0];
  }
  int st=-1;
  for(int i=0;i<n;i++){
    if(s[i]=='X'){
      st=i;
      break;
    }
  }
  if(st==-1){
    Send(0);
    return;
  }
  for(int i=0;i<17;i++){
    Send(st>>i);
  }
  int sz=((n-1)/F+1)*F;
  vector<int> seq(sz);
  for(int i=st+1;i<n;i++){
    if(s[i]=='Z'&&(i==n-1||s[i+1]!='Z')){
      seq[i]=1;
    }
  }
  for(int i=0;i<sz;i+=F){
    BS res;
    for(int j=0;j<F;j++){
      if(seq[i]){
        res=add(res,dp[F-j][0]);
      }
    }
    for(int j=0;j<B;j++){
      Send(res[j]);
    }
  }
}
#include "Bruno.h"
#include <bits/stdc++.h>

using namespace std;

void Bruno(int n,int m,vector<int> seq){
  if(m==1){
    for(int i=0;i<n;i++){
      Remove(i);
    }
    return;
  }
  const int B=349;
  const int F=500;
  using BS = bitset<B>;
  vector<array<BS,2>> dp(F+1);
  auto add=[&](const BS &a,const BS &b){
    BS res;
    bool carry=0;
    for(int i=0;i<B;i++){
      res[i]=a[i]^b[i]^carry;
      carry=(a[i]&b[i])|((a[i]^b[i])&carry);
    }
    return res;
  };
  auto sub=[&](const BS &a,const BS &b){
    BS res;
    int borrow=0;
    for(int i=0;i<B;i++){
      int x=int(a[i])-b[i];
      x-=borrow;
      if(x<0){
        x+=2;
        borrow=1;
      }else{
        borrow=0;
      }
      res[i]=x;
    }
    return res;
  };
  auto lesseq=[&](const BS &a,const BS &b){
    for(int i=B-1;i>=0;i--){
      if(a[i]<b[i])return true;
      if(a[i]>b[i])return false;
    }
    return true;
  };
  dp[1][0]=1;
  dp[1][1]=1;
  for(int i=2;i<=F;i++){
    dp[i][0]=add(dp[i-1][0],dp[i-1][1]);
    dp[i][1]=dp[i-1][0];
  }
  int sz=((n-1)/F+1)*F;
  int p=0;
  for(int i=0;i<17;i++){
    p|=seq[i]<<i;
  }
  vector<int> a;
  for(int i=17;i<m;i+=B){
    BS res;
    for(int j=0;j<B;j++){
      res[j]=seq[i+j];
    }
    for(int j=0;j<F;j++){
      if(lesseq(dp[F-j][0],res)){
        res=sub(res,dp[F-j][0]);
        a.emplace_back(1);
      }else{
        a.emplace_back(0);
      }
    }
  }
  for(int i=0;i<p;i++){
    Remove(i);
  }
  stack<int> s;
  for(int i=p+1;i<n;i++){
    if(a[i]){
      while(!s.empty()){
        Remove(s.top());
        s.pop();
      }
      Remove(i);
    }else{
      s.emplace(i);
    }
  }
  while(!s.empty()){
    Remove(s.top());
    s.pop();
  }
  Remove(p);
}

Compilation message

Bruno.cpp: In function 'void Bruno(int, int, std::vector<int>)':
Bruno.cpp:55:7: warning: unused variable 'sz' [-Wunused-variable]
   55 |   int sz=((n-1)/F+1)*F;
      |       ^~

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 780 KB Wrong Answer [6]
2 Halted 0 ms 0 KB -

Subtask #2
0 / 95.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 86 ms 8096 KB Wrong Answer [6]
2 Halted 0 ms 0 KB -