Submission #71396

#	Time	Username	Problem	Language	Result	Execution time	Memory
71396		hamzqq9	Unscrambling a Messy Bug (IOI16_messy)	C++14	100 / 100	4 ms	512 KiB

messy

#include "messy.h"
#include<bits/stdc++.h>
#define st first
#define nd second
#define pb push_back
#define ppb pop_back
#define umax(x,y) x=max(x,y)
#define umin(x,y) x=min(x,y)
#define ll long long
#define ii pair<int,int>
#define iii pair<int,ii>
#define sz(x) ((int) x.size())
#define orta ((bas+son)>>1)
#define all(x) x.begin(),x.end()
#define dbgs(x) cerr<<(#x)<<" --> "<<(x)<<" "
#define dbg(x) cerr<<(#x)<<" --> "<<(x)<<endl;getchar()
#define pw(x) (1<<(x))
#define inf 2000000000
#define MOD 1000000007
#define N 55
#define MAX 10000006
#define LOG 30
#define KOK 200
using namespace std;

int n;

void find(int bas,int son,vector<int> match,vector<int>& p) {

	string wask(n,'1');

	if(bas+1==son) {

		wask[match[1]]='0';

		if(check_element(wask)) {

			p[match[0]]=bas;
			p[match[1]]=son;

		}
		else {

			p[match[1]]=bas;
			p[match[0]]=son;

		}

		return ;

	}

	for(int i:match) wask[i]='0';

	vector<int> lmatch,rmatch;

	for(int i=0;i<sz(match);i++) {

		wask[match[i]]='1';

		if(check_element(wask)) {

			lmatch.pb(match[i]);

		}
		else {

			rmatch.pb(match[i]);

		}

		wask[match[i]]='0';

	}

	find(bas,orta,lmatch,p);
	find(orta+1,son,rmatch,p);

}

void add(int bas,int son) {

	if(bas==son) return ;

	string wadd(n,'1');

	for(int i=bas;i<=son;i++) wadd[i]='0';

	for(int i=bas;i<=orta;i++) {

		wadd[i]='1';

		add_element(wadd);

		wadd[i]='0';

	}

	add(bas,orta);
	add(orta+1,son);

}

vector<int> restore_permutation(int n, int w, int r) {

	::n=n;

	add(0,n-1);

	compile_set();

	vector<int> match,p(n);

	for(int i=0;i<n;i++) match.pb(i);

	find(0,n-1,match,p);

	return p;

}

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