QOJ.ac

QOJ

ID题目提交者结果用时内存语言文件大小提交时间测评时间
#209729#7102. Live LovePetroTarnavskyi#WA 0ms3660kbC++172.4kb2023-10-10 16:52:542023-10-10 16:52:55

Judging History

你现在查看的是最新测评结果

  • [2023-10-10 16:52:55]
  • 评测
  • 测评结果:WA
  • 用时:0ms
  • 内存:3660kb
  • [2023-10-10 16:52:54]
  • 提交

answer

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>

using namespace __gnu_pbds;
using namespace std;

#define FOR(i, a, b) for(int i = (a); i < (b); i++)
#define RFOR(i, a, b) for(int i = (a) - 1; i >= (b); i--)
#define SZ(a) int(a.size())
#define ALL(a) a.begin(), a.end()
#define PB push_back
#define MP make_pair
#define F first	
#define S second

typedef long long LL;
typedef vector<int> VI;
typedef pair<int, int> PII;
typedef double db;

typedef tree<PII, null_type, less<PII>, rb_tree_tag,
	tree_order_statistics_node_update> ordered_set;

const int INF = 1000'000'747;

struct node
{
	int sz;
	ordered_set s;
	LL ans;
	
	node()
	{
		sz = 0;
		ans = 0;
	}
	
	void addR(int x, int i)
	{
		ans += sz - s.order_of_key({x, INF});
		s.insert({x, i});
		sz++;
	}
	
	void addL(int x, int i)
	{
		ans += s.order_of_key({x, -1});
		s.insert({x, i});
		sz++;
	}
	
	void removeR(int x, int i)
	{
		sz--;
		s.erase({x, i});
		ans -= sz - s.order_of_key({x, INF});
	}
	
	void removeL(int x, int i)
	{
		sz--;
		s.erase({x, i});
		ans -= s.order_of_key({x, -1});
	}
};

void solve()
{
	int n;
	cin >> n;
	map<int, node> s;
	multiset<LL> ans;
	VI a(n);
	node nod;
	FOR (i, 0, n)
	{
		cin >> a[i];
		nod.addR(a[i], i);
	}
	s[0] = nod;
	s[n] = node();
	ans.insert(nod.ans);
	
	int z = 0;
	FOR (i, 0, n)
	{
		z = *prev(ans.end());
		if (i)
			cout << ' ';
		cout << z;
		
		int p;
		cin >> p;
		p ^= z;
		p--;
		auto it = prev(s.upper_bound(p));
		int l = it->F;
		int r = next(it)->F - 1;
		node nd;
		swap(nd, it->S);
		ans.erase(ans.find(nd.ans));
		s.erase(p);
		
		if (p - l <= r - p)
		{
			node tmp;
			FOR (j, l, p)
			{
				nd.removeL(a[j], j);
				tmp.addR(a[j], j);
			}
			nd.removeL(a[p], p);
			
			s[l] = tmp;
			ans.insert(tmp.ans);
			s[p + 1] = nd;
			ans.insert(nd.ans);
			
		}
		else
		{
			node tmp;
			RFOR (j, r + 1, p + 1)
			{
				nd.removeR(a[j], j);
				tmp.addL(a[j], j);
			}
			nd.removeR(a[p], p);
			
			s[l] = nd;
			ans.insert(nd.ans);
			s[p + 1] = tmp;
			ans.insert(tmp.ans);
			//cerr << "2 ";
			//cerr << tmp.ans << ' ' << nd.ans << '\n';
		}
		s[p] = node();
	}
	cout << '\n';
}

int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout << fixed << setprecision(15);

	int t;
	cin >> t;
	while (t--)
	{
		solve();
	}
		
	return 0;
}

詳細信息

Test #1:

score: 0
Wrong Answer
time: 0ms
memory: 3660kb

input:

5
5 4
100 50
252 52
3 0
10 10

output:

3 3 1 1 1
0 1 1 1 1
0 1 1 1 1
0 1 1 1 1
0 1 1 1 1

result:

wrong answer 1st lines differ - expected: '4 2', found: '3 3 1 1 1'