Submission #729994

#	Time	Username	Problem	Language	Result	Execution time	Memory
729994		Baytoro	Unscrambling a Messy Bug (IOI16_messy)	C++17	100 / 100	3 ms	516 KiB

messy

#include <bits/stdc++.h>
//#include "grader.cpp"
#include "messy.h"
using namespace std;
#define ll long long
#define pb push_back
#define fr first
#define sc second

int N,W,R;
vector<int> ans;
void build1(int l, int r){
	if(l==r) return;
	int md=(l+r)/2;
	string s(N,'1');
	for(int i=l;i<=r;i++) s[i]='0';
	for(int i=l;i<=md;i++){
		s[i]='1';
		add_element(s);
		s[i]='0';
	}
	build1(l,md);build1(md+1,r);
}
void get(int l, int r, vector<int> v){
	if(l==r){
		ans[v[0]]=l;return;
	}
	int md=(l+r)/2;
	string s(N,'1');
	for(auto it: v) s[it]='0';
	vector<int> L,R;
	for(auto it: v){
		s[it]='1';
		if(check_element(s)) L.pb(it);
		else R.pb(it);
		s[it]='0';
	}
	get(l,md,L);get(md+1,r,R);
}
vector<int> restore_permutation(int n, int w, int r) {
	N=n,W=w,R=r;
	ans.resize(N);
	build1(0,N-1);
	compile_set();
	vector<int> v;
	for(int i=0;i<n;i++) v.pb(i);
	get(0,N-1,v);
	return ans;
}

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