Submission #30627

#	Time	Username	Problem	Language	Result	Execution time	Memory
30627		samir_droubi	Unscrambling a Messy Bug (IOI16_messy)	C++14	100 / 100	7 ms	512 KiB

messy

#include <vector>

#include "messy.h"
#include <bits/stdc++.h>
using namespace std;
int m;
int bl[200];
int br[200];
void divide(int l,int r)
{
	if( l == r)return;
	string s="";
	for(int i = 0 ; i < m ; ++i)
		s+='1';
	for(int i = l ; i <= r; ++i)
		s[i] = '0';
	int md = ( l + r ) / 2 ;
	for(int i = l ; i <= md ; ++i)
	{
		s[i] = '1';
		add_element(s);
		s[i] = '0';
	}
	divide( l , md );
	divide( md + 1 , r );
}
void divide1(int l,int r)
{
	if( l == r)return;
	string s="";
	for(int i = 0 ; i < m ; ++i)
		s+='0';
	for(int i = 0 ; i < m ; ++i)
	{
		if(bl[i] > r) s[i] = '1';
		if(br[i] < l) s[i] = '1';
	}

	int md = ( l + r ) / 2 ;
	for(int i = 0 ; i < m ; ++i)
	{
		if(s[i] == '1')continue;
		s[i] = '1';
		if(check_element(s))
		{
			bl[i] = l;
			br[i] = md;
		}
		else
		{
			bl[i] = md + 1;
			br[i] = r;
		}
		s[i] = '0';
	}
	
	divide1( l , md );
	divide1( md + 1 , r );
}
std::vector<int> restore_permutation(int n, int w, int r) {
    m = n;
    
    divide( 0 , m - 1 );
    
    compile_set();
    
    divide1( 0 , m - 1 );
    
    vector<int>ans;
    for(int i = 0 ; i < m ; ++i)
    	ans.push_back(bl[i]);
    return ans;
}

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