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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
#657371#2788. HorsesPioneer#17 1296ms46992kbC++202.8kb2024-10-19 14:39:112024-10-19 14:39:13

Judging History

你现在查看的是最新测评结果

  • [2024-10-19 14:39:13]
  • 评测
  • 测评结果:17
  • 用时:1296ms
  • 内存:46992kb
  • [2024-10-19 14:39:11]
  • 提交

answer

#include "horses.h"
#include <bits/stdc++.h>

#define ll long long
using namespace std;

const ll inf=1e9;
const int mod=1e9+7;
const int MAX=5e5+10;

struct segtree{
	int t[4*MAX];
	bool mark[4*MAX];

	segtree(){
		memset(mark,0,sizeof(mark));
	}

	void update(int v,int tl,int tr,int pos,int x){
		if(tl==tr){
			t[v]=x;
			return;
		}
		int tm=(tl+tr)/2;
		if(pos<=tm)update(2*v,tl,tm,pos,x);
		else update(2*v+1,tm+1,tr,pos,x);
		mark[v]=(mark[2*v]|mark[2*v+1]);
		if(t[2*v]*1ll*t[2*v+1]>=mod){
			mark[v]=1;
		}
		t[v]=(t[2*v]*1ll*t[2*v+1])%mod;
	}

	pair<int,bool> mrg(pair<int,bool> a,pair<int,bool> b){
		pair<int,bool> res={a.first*1ll*b.first%mod,(a.second|b.second)};
		if(a.first*1ll*b.first>=mod){
			res.second=1;
		}
		return res;
	}

	pair<int,bool> get(int v,int tl,int tr,int l,int r){
		if(l>r||tl>r||l>tr)return {1,0};
		if(l<=tl&&tr<=r)return {t[v],mark[v]};
		int tm=(tl+tr)/2;
		return mrg(get(2*v,tl,tm,l,r),get(2*v+1,tm+1,tr,l,r));
	}
}tx;

struct segtreeMx{
	pair<int,int> t[MAX];

	pair<int,int> mrg(pair<int,int> a,pair<int,int> b){
		if(a.first>=b.first)return a;
		else return b;
	}

	void update(int v,int tl,int tr,int pos,int x){
		if(tl==tr){
			t[v]={x,tl};
			return;
		}
		int tm=(tl+tr)/2;
		if(pos<=tm)update(2*v,tl,tm,pos,x);
		else update(2*v+1,tm+1,tr,pos,x);
		t[v]=mrg(t[2*v],t[2*v+1]);
	}

	pair<int,int> get(int v,int tl,int tr,int l,int r){
		if(l>r||tl>r||l>tr)return {0,0};
		if(l<=tl&&tr<=r)return t[v];
		int tm=(tl+tr)/2;
		return mrg(get(2*v,tl,tm,l,r),get(2*v+1,tm+1,tr,l,r));
	}
}ty;

int n;
set<int> st;
int x[MAX];
int y[MAX];

int get(int pos){
	return tx.get(1,1,n,1,pos).first*1ll*y[pos]%mod;
}

int get(){
	if(st.empty())return ty.get(1,1,n,1,n).first;
	vector<int> vec;
	int pos=ty.get(1,1,n,*st.rbegin(),n).second;
	vec.push_back(*st.rbegin());
	st.erase(--st.end());
	while(!st.empty()){
		// assert(*st.rbegin()==vec.back()-1);
		int pos1=ty.get(1,1,n,*st.rbegin(),vec.back()-1).second;
		vec.push_back(*st.rbegin());
		st.erase(--st.end());
		pair<int,bool> bf=tx.get(1,1,n,pos1+1,pos);
		if(bf.second||bf.first*1ll*y[pos]>=mod)break;
		if(bf.first*y[pos]<=y[pos1])pos=pos1;
	}
	for(int x:vec)st.insert(x);
	return max(get(pos),ty.get(1,1,n,1,n).first);
}

int init(int N, int X[], int Y[]) {
	n=N;
	for(int i=0;i<N;i++){
		y[i+1]=Y[i];
		x[i+1]=X[i];
		tx.update(1,1,N,i+1,X[i]);
		ty.update(1,1,N,i+1,Y[i]);
		if(X[i]!=1){
			st.insert(i+1);
		}
	}
	return get();
}

int updateX(int pos, int val) {	
	pos++;
	if(x[pos]!=1)st.erase(pos);
	x[pos]=val;
	tx.update(1,1,n,pos,val);
	if(x[pos]!=1)st.insert(pos);
	return get();
}

int updateY(int pos, int val) {
	pos++;
	y[pos]=val;
	ty.update(1,1,n,pos,val);
	return get();
}

详细

Subtask #1:

score: 17
Accepted

Test #1:

score: 17
Accepted
time: 0ms
memory: 13352kb

input:

1
2
3
0

output:

6

result:

ok single line: '6'

Test #2:

score: 17
Accepted
time: 2ms
memory: 13040kb

input:

10
2 1 1 5 2 1 1 10 5 1
3 5 7 9 4 1 4 10 10 9
0

output:

10000

result:

ok single line: '10000'

Test #3:

score: 17
Accepted
time: 0ms
memory: 13112kb

input:

10
10 10 10 1 1 1 1 1 1 1
2 3 4 2 7 6 5 4 3 2
0

output:

7000

result:

ok single line: '7000'

Test #4:

score: 17
Accepted
time: 0ms
memory: 12432kb

input:

10
9 1 1 1 1 1 1 1 1 2
4 1 1 1 1 1 1 1 1 2
0

output:

36

result:

ok single line: '36'

Test #5:

score: 17
Accepted
time: 2ms
memory: 11956kb

input:

10
1 1 1 1 1 1 1 1 1 1
1 2 3 4 5 6 7 8 9 10
0

output:

10

result:

ok single line: '10'

Test #6:

score: 17
Accepted
time: 1ms
memory: 12440kb

input:

10
1 1 1 1 1 1 1 1 1 1
10 9 8 7 6 5 4 3 2 1
0

output:

10

result:

ok single line: '10'

Test #7:

score: 17
Accepted
time: 2ms
memory: 12008kb

input:

10
10 10 10 1 1 1 1 1 1 1
10 10 2 3 4 5 6 7 8 9
0

output:

9000

result:

ok single line: '9000'

Test #8:

score: 17
Accepted
time: 0ms
memory: 12616kb

input:

10
10 10 10 1 1 1 1 1 1 1
10 10 9 8 7 6 5 4 3 2
0

output:

9000

result:

ok single line: '9000'

Test #9:

score: 17
Accepted
time: 2ms
memory: 13552kb

input:

10
1 1 1 1 2 2 1 1 1 1
8 8 8 8 1 1 2 2 2 2
0

output:

8

result:

ok single line: '8'

Test #10:

score: 17
Accepted
time: 0ms
memory: 12960kb

input:

10
1 1 1 1 1 1 1 1 1 1
1 2 3 4 5 9 8 7 6 1
0

output:

9

result:

ok single line: '9'

Test #11:

score: 17
Accepted
time: 3ms
memory: 13144kb

input:

2
2 5
9 7
0

output:

70

result:

ok single line: '70'

Test #12:

score: 17
Accepted
time: 2ms
memory: 12328kb

input:

1
1
1
0

output:

1

result:

ok single line: '1'

Test #13:

score: 17
Accepted
time: 0ms
memory: 12984kb

input:

7
7 1 1 6 2 3 2
7 6 5 4 3 7 1
0

output:

1764

result:

ok single line: '1764'

Test #14:

score: 17
Accepted
time: 0ms
memory: 13676kb

input:

1
10
10
0

output:

100

result:

ok single line: '100'

Test #15:

score: 17
Accepted
time: 0ms
memory: 13848kb

input:

2
1 4
7 2
0

output:

8

result:

ok single line: '8'

Test #16:

score: 17
Accepted
time: 0ms
memory: 12096kb

input:

10
1 10 1 10 1 1 10 1 1 1
7 3 10 10 4 10 1 4 5 10
0

output:

10000

result:

ok single line: '10000'

Test #17:

score: 17
Accepted
time: 0ms
memory: 12484kb

input:

6
1 1 1 1 1 1
1 1 1 1 1 1
0

output:

1

result:

ok single line: '1'

Test #18:

score: 17
Accepted
time: 0ms
memory: 13852kb

input:

4
1 2 4 8
8 4 2 1
0

output:

64

result:

ok single line: '64'

Test #19:

score: 17
Accepted
time: 2ms
memory: 12380kb

input:

6
1 2 2 3 1 1
7 1 1 2 1 1
0

output:

24

result:

ok single line: '24'

Test #20:

score: 17
Accepted
time: 0ms
memory: 12936kb

input:

10
2 1 1 5 2 1 1 10 5 1
3 5 7 9 4 1 4 10 7 9
0

output:

9000

result:

ok single line: '9000'

Subtask #2:

score: 0
Wrong Answer

Dependency #1:

100%
Accepted

Test #21:

score: 0
Wrong Answer
time: 3ms
memory: 12940kb

input:

10
10 10 10 10 10 10 1 1 1 1
1 1 1 1 9 5 4 7 3 2
5
1 5 1
2 5 123456789
1 5 1
1 8 987654321
1 9 777777777

output:

7000000
900000
678813585
678813585
294225928
123456789

result:

wrong answer 6th lines differ - expected: '75803567', found: '123456789'

Subtask #3:

score: 0
Wrong Answer

Test #33:

score: 0
Wrong Answer
time: 1296ms
memory: 46992kb

input:

500000
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2...

output:

942713367
959844135
978624926
978624926
978624926
978624926
978624926
940183683
885987581
877695782
858627528
936204112
936204112
936204112
936204112
936204112
842685874
842685874
842685874
885981330
885981330
885981330
885981330
885981330
902109012
902109012
902109012
902109012
902109012
891530530
...

result:

wrong answer 1st lines differ - expected: '967631222', found: '942713367'

Subtask #4:

score: 0
Skipped

Dependency #2:

0%

Subtask #5:

score: 0
Skipped

Dependency #1:

100%
Accepted

Dependency #2:

0%