Submission #295311

#	Time	Username	Problem	Language	Result	Execution time	Memory
295311		Plurm	Unscrambling a Messy Bug (IOI16_messy)	C++11	100 / 100	3 ms	512 KiB

messy

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

int n;
void build(int l, int r){
	int k = (l+r)/2;
	string cur;
	cur.resize(n, '1');
	for(int i = l; i <= r; i++){
		cur[i] = '0';
	}
	for(int i = l; i <= k; i++){
		cur[i] = '1';
		add_element(cur);
		cur[i] = '0';
	}
	if(l+1 >= r) return;
	build(l, k);
	build(k+1, r);
}
vector<int> p;
void filt(int l, int r, vector<int> cdds, string tmpl){
	if(l == r){
		p[cdds[0]] = l;
		return;
	}
	int m = (l+r)/2;
	vector<int> lcdds, rcdds;
	string ltmpl = tmpl;
	string rtmpl = tmpl;
	for(int i : cdds){
		string cur = tmpl;
		cur[i] = '1';
		bool found = check_element(cur);
		if(found){
			ltmpl[i] = '1';
			lcdds.push_back(i);
		}else{
			rtmpl[i] = '1';
			rcdds.push_back(i);
		}
	}
	filt(l, m, lcdds, rtmpl);
	filt(m+1, r, rcdds, ltmpl);
}
vector<int> restore_permutation(int n, int w, int r){
	::n = n;
	build(0, n-1);
	compile_set();
	vector<int> cdds;
	for(int i = 0; i < n; i++){
		cdds.push_back(i);
		p.push_back(i);
	}
	string tmpl;
	tmpl.resize(n, '0');
	filt(0, n-1, cdds, tmpl);
    return p;
}

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