Submission #1129682

#	Time	Username	Problem	Language	Result	Execution time	Memory
1129682		yellowtoad	Unscrambling a Messy Bug (IOI16_messy)	C++20	100 / 100	1 ms	584 KiB

messy

#include <iostream>
#include <vector>
using namespace std;
#include "messy.h"

int n;
char s[200];
vector<int> ans;

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

void solve(int l, int r, vector<int> can) {
	if (l == r) {
		ans.push_back(can[0]);
		return;
	}
	vector<int> ll, rr;
	for (int i = 0; i < n; i++) s[i] = '1';
	for (int i = 0; i < can.size(); i++) s[can[i]] = '0';
	for (int i = 0; i < can.size(); i++) {
		s[can[i]] = '1';
		if (check_element(s)) ll.push_back(can[i]);
        else rr.push_back(can[i]);
		s[can[i]] = '0';
	}
	int mid = (l+r)/2;
	solve(l,mid,ll); solve(mid+1,r,rr);
}

std::vector<int> restore_permutation(int N, int w, int r) {
    n = N;
	add(0,n-1);
	compile_set();
	vector<int> can;
	for (int i = 0; i < n; i++) can.push_back(i);
	solve(0,n-1,can);
    vector<int> res(n);
    for (int i = 0; i < n; i++) res[ans[i]] = i;
	return res;
}

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