Submission #1200479

#	Time	Username	Problem	Language	Result	Execution time	Memory
1200479		Joon_Yorigami	Unscrambling a Messy Bug (IOI16_messy)	C++17	100 / 100	1 ms	584 KiB

messy

#include <bits/stdc++.h>
#include "messy.h"
using namespace std;
using ll = long long;
vector<int> ans;
int n;
void build(int l,int r)
{
    if(l==r) return;
    string str(n,'1');
    int mid = l + (r-l)/2;
    for(int i=l;i<=r;i++) str[i]='0';
    for(int i=l;i<=mid;i++)
    {
        str[i]='1';
        add_element(str);
        str[i]='0';
    }
    build(l,mid);
    build(mid+1,r);
}

void query(int l,int r,vector<int> &indices)
{
    if(l==r)
    {
        ans[indices[0]]=l;
        return;
    }
    string str(n,'1');
    for(auto idx:indices) str[idx]='0';
    vector<int> left,right;
    for(auto idx:indices)
    {
        str[idx]='1';
        if(check_element(str)) left.push_back(idx);
        else right.push_back(idx);
        str[idx]='0';
    }
    int mid=l+(r-l)/2;
    query(l,mid,left);
    query(mid+1,r,right);
}

vector<int> restore_permutation(int N, int w, int r)
{
    n=N;
    vector<int> indices;
    for(int i=0;i<n;i++)
    {
        indices.push_back(i);
    }
    ans.assign(n,-1);
    build(0,n-1);
    compile_set();
    query(0,n-1,indices);
    return ans;
}

Compilation message (stderr)

messy.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
messy_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

• Subtask 1: 20 / 20
• Subtask 2: 18 / 18
• Subtask 3: 11 / 11
• Subtask 4: 21 / 21
• Subtask 5: 30 / 30