Submission #428363

#	Time	Username	Problem	Language	Result	Execution time	Memory
428363		SuhaibSawalha1	Unscrambling a Messy Bug (IOI16_messy)	C++17	100 / 100	3 ms	460 KiB

messy

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

int n;
void add (int l = 0, int r = n - 1) {
	if (l == r) {
		return;
	}
	string s = string(l, '1') + string(r - l + 1, '0') + string(n - r - 1, '1');
	int mid = (l + r) / 2;
	for (int i = l; i <= mid; ++i) {
		s[i] = '1';
		add_element(s);
		s[i] = '0';
	}
	add(l, mid);
	add(mid + 1, r);
}

void check (int l, int r, vector<int> M, vector<int> &p) {
	if (l == r) {
		p[M[0]] = l;
		return;
	}
	string s = string(n, '1');
	for (int i : M) {
		s[i] = '0';
	}
	int mid = (l + r) / 2;
	vector<int> L, R;
	for (int i : M) {
		s[i] = '1';
		(check_element(s) ? L : R).push_back(i);
		s[i] = '0';
	}
	check(l, mid, L, p);
	check(mid + 1, r, R, p);
}

vector<int> restore_permutation(int n, int w, int r) {
	::n = n;
	vector<int> p(n);
	iota(p.begin(), p.end(), 0);
	add();
	compile_set();
	check(0, n - 1, p, p);
	return p;
}

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