Submission #308535

#	Time	Username	Problem	Language	Result	Execution time	Memory
308535		talant117408	Unscrambling a Messy Bug (IOI16_messy)	C++17	100 / 100	3 ms	512 KiB

messy

#include "messy.h"
#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
typedef pair <int, int> pii;
 
#define precision(n) fixed << setprecision(n)
#define pb push_back
#define ub upper_bound
#define lb lower_bound
#define mp make_pair
#define eps (double)1e-9
#define PI 2*acos(0.0)
#define endl "\n"
#define sz(v) int((v).size())
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
#define do_not_disturb ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);

vector <int> per;
map <pii, vector <int>> which, which2;

void insertit(int l, int r, int n){
    if(l == r) return;
    
    int mid = (l+r) >> 1, i;
    
    string in = "";
    for(i = 0; i < n; i++)
        in += "1";
    for(i = l; i <= r; i++)
        in[i] = '0';
        
    for(i = l; i <= mid; i++){
        in[i] = '1';
        add_element(in);
        in[i] = '0';
    }
    
    insertit(l, mid, n);
    insertit(mid+1, r, n);
}

void find(int l, int r, int n, vector <int> v){
    if(l == r){
        per[v[0]] = l;
        return;
    }
    
    int mid = (l+r) >> 1, i;
    
    string in = "";
    for(i = 0; i < n; i++)
        in += "1";
        
    for(auto to : v) in[to] = '0';
    
    vector <int> lll, rrr;
    
    for(auto to : v){
        in[to] = '1';
        
        (check_element(in) ? lll : rrr).pb(to);
        
        in[to] = '0';
    }
    
    find(l, mid, n, lll);
    find(mid+1, r, n, rrr);
}

vector<int> restore_permutation(int n, int w, int r) {
    per.resize(n, -1);
    vector <int> v(n);
    iota(all(v), 0);
    insertit(0, n-1, n);
    compile_set();
    find(0, n-1, n, v);
    
    return per;
}

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