Submission #1204493

#	Time	Username	Problem	Language	Result	Execution time	Memory
1204493		PlayVoltz	Unscrambling a Messy Bug (IOI16_messy)	C++20	100 / 100	1 ms	584 KiB

messy

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

int n;
vector<int> ans;

void init(int l, int r){
	if (l==r)return;
	int mid=(l+r)/2;
	string s(n, '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';
	init(l, mid), init(mid+1, r);
}

void dnc(int l, int r, string s){
	if (l==r){
		for (int i=0; i<s.size(); ++i)if (s[i]=='0')ans[i]=l;
		return;
	}
	int mid=(l+r)/2;
	string sl=s, sr=s;
	for (int i=0; i<n; ++i)if (s[i]=='0'){
		s[i]='1';
		if (check_element(s))sr[i]='1';
		else sl[i]='1';
		s[i]='0';
	}
	dnc(l, mid, sl), dnc(mid+1, r, sr);
}

vector<int> restore_permutation(int N, int w, int r){
	n=N;
	ans.resize(n);
	init(0, n-1);
	compile_set();
	dnc(0, n-1, string(n, '0'));
	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