제출 #1328466

#제출 시각아이디문제언어결과실행 시간메모리
1328466nanaseyuzuki도서관 (JOI18_library)C++20
0 / 100
11 ms456 KiB
#include <bits/stdc++.h>
#include "library.h"
#define ll long long
#define fi first
#define se second
#define pii pair<int, int>
#define all(a) a.begin(), a.end()
using namespace std;

#ifdef LOCAL
#include "C:\Users\Dell\Downloads\template\template\icpc-notebook\Utilities\debug.h"
#else
#define debug(...) 42
#endif

const int mn = 5e5 + 5, mod = 1e9 + 7, inf = 2e9;

int n;
vector <int> a[mn], res;

vector <int> merge(vector <int> x, vector <int> y){
	vector <int> ans(n);
	
	ans[x.front()] = 1, ans[y.front()] = 1;
	if(Query(ans) == 1){
		reverse(all(y));
		for(auto i : x) y.push_back(i);
		return y;
	}
	ans[x.front()] = 0, ans[y.front()] = 0;
	
	ans[x.front()] = 1, ans[y.back()] = 1;
	if(Query(ans) == 1){
		for(auto i : x) y.push_back(i);
		return y;
	}
	ans[x.front()] = 0, ans[y.back()] = 0;

	ans[x.back()] = 1, ans[y.front()] = 1;
	if(Query(ans) == 1){
		for(auto i : y) x.push_back(i);
		return x;
	}
	ans[x.back()] = 0, ans[y.front()] = 0;

	reverse(all(y));
	for(auto i : y) x.push_back(i);
	return x;
}

void Solve(int N) {
    n = N;
    for(int i = 0; i < n; i++) a[i].push_back(i);

    for(int st = 0; st < n - 1; st ++){
    	int l = st + 1, r = n - 1, ans = -1;

    	while(l <= r){
    		int mid = (l + r) >> 1;
    		vector <int> ask(n);
    		for(int i = st; i <= mid; i++){
    			for(auto j : a[i]) ask[j] = 1;
    		}
    		if(Query(ask) <= mid - st){
    			ans = mid;
    			r = mid - 1;
    		}
    		else l = mid + 1;
    	}
    	a[ans] = merge(a[st], a[ans]);
    	debug(ans, a[ans]);
    }
	
	for(auto &i : a[n - 1]) i ++;
    Answer(a[n - 1]);
}
// Don't wanna lose anymore T_T
// Never let me go - Kazuo Ishiguro
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