Submission #436882

#	Time	Username	Problem	Language	Result	Execution time	Memory
436882		dutch	Unscrambling a Messy Bug (IOI16_messy)	C++17	100 / 100	3 ms	588 KiB

messy

#include <bits/stdc++.h>
using namespace std;
#include "messy.h"

vector<int> res(128);
int N;

void init(int l, int r){
	if(r-l < 2) 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';
	}
	init(l, m), init(m, r);
}

void find(int l, int r, vector<int> &v){
	if(r-l < 2) return void(res[v[0]] = l);
	int m = (l + r) / 2;

	vector<int> a[2];
	string s(N, '1');
	for(int i : v) s[i] = '0';
	for(int i : v){
		s[i] = '1';
		a[!check_element(s)].push_back(i);
		s[i] = '0';
	}
	find(l, m, a[0]), find(m, r, a[1]);
}

vector<int> restore_permutation(int n, int __0, int __1){
	N = n;
	vector<int> a(n); iota(a.begin(), a.end(), 0);
	init(0, n);
	compile_set();
	find(0, n, a);
	res.resize(n);
    return res;
}

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