Submission #231110

#TimeUsernameProblemLanguageResultExecution timeMemory
231110a_playerUnscrambling a Messy Bug (IOI16_messy)C++14
100 / 100
6 ms512 KiB
#include "messy.h"
#include <bits/stdc++.h>
#ifdef ALE
#include "grader.cpp"
#endif

using namespace std;
/*
add_element("0");
compile_set();
check_element("0");
*/
int N;
vector<int> ans;
void add(int l, int r){
  if(l==r)return;
  int m=(l+r)/2;
  string s(N,'1');
  for(int i=l;i<=r;i++)s[i]='0';

  for(int i=l;i<=m;i++){
    s[i]='1';
    add_element(s);
    s[i]='0';
  }
  add(l,m);
  add(m+1,r);
}
void search(int l, int r, vector<int> a){
  if(l==r){
    ans[a[0]]=l;
    return;
  }
  int m=(l+r)/2;
  string s(N,'1');
  for(int x:a)s[x]='0';
  vector<int> dx,sx;
  for(int x:a){
    s[x]='1';
    if(check_element(s))
        sx.push_back(x);
    else dx.push_back(x);
    s[x]='0';
  }
  search(l,m,sx);
  search(m+1,r,dx);

}
vector<int> restore_permutation(int n, int w, int r) {
  N=n;
  ans.resize(n);
  add(0,N-1);
  compile_set();
  vector<int> a(N);
  iota(a.begin(),a.end(),0);
  search(0,N-1,a);
  return ans;
}
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