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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#357179#7108. Couleurarnold518AC ✓1562ms20468kbC++172.3kb2024-03-18 19:03:032024-03-18 19:03:03

Judging History

你现在查看的是最新测评结果

  • [2024-03-18 19:03:03]
  • 评测
  • 测评结果:AC
  • 用时:1562ms
  • 内存:20468kb
  • [2024-03-18 19:03:03]
  • 提交

answer

#include <bits/stdc++.h>
#define ff first
#define ss second
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 1e5;

int TC, N, A[MAXN+10];

struct Data
{
	int sz;
	vector<int> comp;
	vector<int> tree;
	ll val;

	Data()
	{
		sz=0;
		comp.clear();
		tree.clear();
		val=0;
	}
	Data(int l, int r)
	{
		vector<int> V;
		for(int i=l; i<=r; i++) V.push_back(A[i]);
		sort(V.begin(), V.end());
		V.erase(unique(V.begin(), V.end()), V.end());
		sz=V.size(); comp=V;
		tree=vector<int>(sz+1);
		val=0;

		for(int i=r; i>=l; i--)
		{
			val+=query(A[i]-1);
			update(A[i], 1);
		}
	}

	int getcomp(int i)
	{
		int x=lower_bound(comp.begin(), comp.end(), i)-comp.begin();
		if(x<comp.size() && comp[x]==i) return x+1;
		else return x;
	}

	void update(int i, int k)
	{
		i=getcomp(i);
		for(; i<=sz; i+=(i&-i)) tree[i]+=k;
	}

	int query(int i)
	{
		i=getcomp(i);
		int ret=0;
		for(; i>0; i-=(i&-i)) ret+=tree[i];
		return ret;
	}
};

Data B[MAXN+10];

int main() {
	cin.tie(0); ios_base::sync_with_stdio(0);

	scanf("%d", &TC);
	while(TC--)
	{
		scanf("%d", &N);
		for(int i=1; i<=N; i++) scanf("%d", &A[i]);

		set<int> S;
		S.insert(N+1);
		S.insert(0);
		B[N]=Data(1, N);
		
		ll ans=B[N].val;
		multiset<ll> MS;
		MS.insert(ans);
		MS.insert(0);

		for(int i=1; i<=N; i++)
		{
			printf("%lld ", ans);
			ll p;
			scanf("%lld", &p);
			p^=ans;

			auto it=S.lower_bound(p);
			int r=*it-1, l=*prev(it)+1;
			MS.erase(MS.find(B[r].val));

			if(l==r) continue;
			if(p<=(l+r)/2)
			{
				if(l<=p-1)
				{
					B[p-1]=Data(l, p-1);
					B[r].val-=B[p-1].val;
					for(int j=l; j<p; j++) B[r].val-=(A[j]>A[p]);
				}
				for(int j=l; j<=p; j++) B[r].update(A[j], -1);
				for(int j=l; j<=p; j++) B[r].val-=B[r].query(A[j]-1);
			}
			else
			{
				swap(B[r], B[p-1]);
				if(p+1<=r)
				{
					B[r]=Data(p+1, r);
					B[p-1].val-=B[r].val;
					for(int j=p+1; j<=r; j++) B[p-1].val-=(A[p]>A[j]);
				}
				for(int j=p; j<=r; j++) B[p-1].update(A[j], -1);
				for(int j=p; j<=r; j++) B[p-1].val-=B[p-1].query(N)-B[p-1].query(A[j]);
			}
			
			if(l<=p-1) MS.insert(B[p-1].val);
			if(p+1<=r) MS.insert(B[r].val);
			S.insert(p);

			ans=*prev(MS.end());
		}
		for(int i=1; i<=N; i++) B[i]=Data();
		printf("\n");
	}
}

这程序好像有点Bug,我给组数据试试?

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 10288kb

input:

3
5
4 3 1 1 1
5 4 5 3 1
10
9 7 1 4 7 8 5 7 4 8
21 8 15 5 9 2 4 5 10 6
15
4 8 8 1 12 1 10 14 7 14 2 9 13 10 3
37 19 23 15 7 2 10 15 2 13 4 5 8 7 10

output:

7 0 0 0 0 
20 11 7 2 0 0 0 0 0 0 
42 31 21 14 14 4 1 1 1 0 0 0 0 0 0 

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 1562ms
memory: 20468kb

input:

11116
10
10 5 10 3 6 4 8 5 9 8
31 27 24 11 12 3 0 2 3 1
10
8 2 7 2 8 10 1 10 9 10
6 5 2 13 2 1 0 1 3 1
10
7 10 7 6 1 3 10 6 7 9
21 18 10 1 6 5 4 8 9 10
10
2 10 4 8 8 5 7 2 6 7
20 10 9 1 15 0 4 2 9 7
10
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
10
1 2 3 4 5 6 7 8 9 10
6 3 5 2 7 10 9 1 4 8
10
1 10 1 3...

output:

21 18 16 12 10 6 4 1 1 0 
12 12 10 10 4 4 4 2 1 0 
20 16 9 5 3 3 3 0 0 0 
22 14 8 8 5 5 2 1 1 0 
0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 
19 12 7 4 4 2 2 1 0 0 
20 18 8 3 1 1 0 0 0 0 
45 21 21 10 3 3 3 0 0 0 
17 11 8 2 1 1 1 0 0 0 
13 4 1 0 0 0 0 0 0 0 
29 27 22 15 9 7 4 3 1 0 
26 16 9 2 1 1 1 1 1 ...

result:

ok 11116 lines

Extra Test:

score: 0
Extra Test Passed