oj.uz

답안 #624782

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
624782 2022-08-08T18:05:45 Z CSQ31 유괴 2 (JOI17_abduction2) C++17
44 / 100
 885 ms 21600 KB 
#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define owo ios_base::sync_with_stdio(0);cin.tie(0);
typedef pair<int,int> pii;
const int MAXN = 5e4+5;
vector<int>a,b;
int h,w,q;
map<int,int>dp[2][MAXN];
int lg[MAXN];
struct spt{
	vector<int>a;
	vector<vector<int>>mx;
	int n;
	spt(){}
	spt(vector<int>_a){
		a = _a;
		n = a.size();
		mx.resize(20);
		for(int i=0;i<20;i++)mx[i].assign(n,-1e9);
		for(int i=0;i<n;i++)mx[0][i] = a[i];
		for(int i=1;i<20;i++){
			for(int j=0;j+(1<<i)-1<n;j++){
				mx[i][j] = max(mx[i-1][j],mx[i-1][j+(1<<(i-1))]);
			}
		}
	}
	int query(int l,int r){
		int v = lg[r-l+1];
		int res = max(mx[v][l],mx[v][r-(1<<v)+1]);
		return res;
	}
	void print(){
		for(int i=0;i<20;i++){
			for(int j=0;j+(1<<i)-1<n;j++)cout<<mx[i][j]<<" ";
			cout<<'\n';
		}
		
		
	}
}mw,mh;
int solve(int i,int j,int k){
	if(dp[k][i].find(j) != dp[k][i].end())return dp[k][i][j];
	if(!k){
		dp[0][i][j] = -1e9;
		int l = j+1,r = w-1;
		while(r>=l){
			int mid = (l+r)/2;
			if(mw.query(j+1,mid) > a[i])r=mid-1;
			else l = mid+1;
		}
		if(l > j && l<w)dp[0][i][j] = max(dp[0][i][j],solve(i,l,1) + l - j);
		for(int jj=j-1;jj>=0;jj--){
			if(b[jj] > a[i]){
				dp[0][i][j] = max(dp[0][i][j],solve(i,jj,1)+j-jj);
				break;
			}
		}
		if(dp[0][i][j] == -1e9)dp[0][i][j] = max(w-1-j,j);
	}else{
		dp[1][i][j] = -1e9;
		int l = i+1,r = h-1;
		while(r>=l){
			int mid = (l+r)/2;
			if(mh.query(i+1,mid) > b[j])r=mid-1;
			else l = mid+1;
		}
		if(l>i && l<h)dp[1][i][j] = max(dp[1][i][j],solve(l,j,0) + l - i);
		for(int ii=i-1;ii>=0;ii--){
			if(a[ii] > b[j]){
				dp[1][i][j] = max(dp[1][i][j],solve(ii,j,0) + i-ii);
				break;
			}
		}
		if(dp[1][i][j] == -1e9)dp[1][i][j] = max(h-1-i,i);
	}
	return dp[k][i][j];
}
int main()
{
	owo
	cin>>h>>w>>q;
	a.resize(h);
	b.resize(w);
	for(int i=0;i<h;i++)cin>>a[i];
	for(int i=0;i<w;i++)cin>>b[i];
	lg[1] = 0;
	for(int i=2;i<=50000;i++)lg[i] = lg[i/2]+1;
	mh = spt(a);
	mw = spt(b);
	//mh.print();
	//mw.print();
	while(q--){
		int i,j;
		cin>>i>>j;
		i--;
		j--;
		int ans = max(solve(i,j,0),solve(i,j,1));
		cout<<ans<<'\n';
	}
	
}

Subtask #1
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5204 KB Output is correct
2 Correct 3 ms 5152 KB Output is correct
3 Correct 3 ms 5204 KB Output is correct
4 Correct 3 ms 5204 KB Output is correct
5 Correct 3 ms 5204 KB Output is correct
6 Correct 3 ms 5204 KB Output is correct
7 Correct 3 ms 5152 KB Output is correct
8 Correct 3 ms 5204 KB Output is correct
9 Correct 4 ms 5152 KB Output is correct
10 Correct 3 ms 5152 KB Output is correct
11 Correct 3 ms 5152 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5204 KB Output is correct
2 Correct 3 ms 5152 KB Output is correct
3 Correct 3 ms 5204 KB Output is correct
4 Correct 3 ms 5204 KB Output is correct
5 Correct 3 ms 5204 KB Output is correct
6 Correct 3 ms 5204 KB Output is correct
7 Correct 3 ms 5152 KB Output is correct
8 Correct 3 ms 5204 KB Output is correct
9 Correct 4 ms 5152 KB Output is correct
10 Correct 3 ms 5152 KB Output is correct
11 Correct 3 ms 5152 KB Output is correct
12 Correct 4 ms 5496 KB Output is correct
13 Correct 3 ms 5592 KB Output is correct
14 Correct 3 ms 5588 KB Output is correct
15 Correct 4 ms 5588 KB Output is correct
16 Correct 4 ms 5548 KB Output is correct
17 Correct 4 ms 5588 KB Output is correct
18 Correct 4 ms 5588 KB Output is correct
19 Correct 5 ms 5672 KB Output is correct
20 Correct 6 ms 5804 KB Output is correct
21 Correct 5 ms 5800 KB Output is correct
22 Correct 7 ms 5928 KB Output is correct

Subtask #3
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5204 KB Output is correct
2 Correct 3 ms 5152 KB Output is correct
3 Correct 3 ms 5204 KB Output is correct
4 Correct 3 ms 5204 KB Output is correct
5 Correct 3 ms 5204 KB Output is correct
6 Correct 3 ms 5204 KB Output is correct
7 Correct 3 ms 5152 KB Output is correct
8 Correct 3 ms 5204 KB Output is correct
9 Correct 4 ms 5152 KB Output is correct
10 Correct 3 ms 5152 KB Output is correct
11 Correct 3 ms 5152 KB Output is correct
12 Correct 4 ms 5496 KB Output is correct
13 Correct 3 ms 5592 KB Output is correct
14 Correct 3 ms 5588 KB Output is correct
15 Correct 4 ms 5588 KB Output is correct
16 Correct 4 ms 5548 KB Output is correct
17 Correct 4 ms 5588 KB Output is correct
18 Correct 4 ms 5588 KB Output is correct
19 Correct 5 ms 5672 KB Output is correct
20 Correct 6 ms 5804 KB Output is correct
21 Correct 5 ms 5800 KB Output is correct
22 Correct 7 ms 5928 KB Output is correct
23 Correct 19 ms 14984 KB Output is correct
24 Correct 18 ms 14972 KB Output is correct
25 Correct 26 ms 14900 KB Output is correct
26 Correct 24 ms 14884 KB Output is correct
27 Correct 19 ms 14940 KB Output is correct
28 Correct 687 ms 19920 KB Output is correct
29 Correct 139 ms 15496 KB Output is correct
30 Correct 788 ms 20096 KB Output is correct
31 Correct 885 ms 21600 KB Output is correct
32 Correct 78 ms 15000 KB Output is correct
33 Correct 298 ms 16416 KB Output is correct

Subtask #4
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 5588 KB Output is correct
2 Correct 4 ms 5588 KB Output is correct
3 Correct 5 ms 5588 KB Output is correct
4 Correct 4 ms 5676 KB Output is correct
5 Correct 5 ms 5716 KB Output is correct
6 Correct 5 ms 5844 KB Output is correct
7 Correct 6 ms 5768 KB Output is correct
8 Correct 6 ms 5932 KB Output is correct
9 Correct 6 ms 5972 KB Output is correct
10 Correct 7 ms 5844 KB Output is correct
11 Correct 6 ms 5972 KB Output is correct

Subtask #5
0 / 56.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5204 KB Output is correct
2 Correct 3 ms 5152 KB Output is correct
3 Correct 3 ms 5204 KB Output is correct
4 Correct 3 ms 5204 KB Output is correct
5 Correct 3 ms 5204 KB Output is correct
6 Correct 3 ms 5204 KB Output is correct
7 Correct 3 ms 5152 KB Output is correct
8 Correct 3 ms 5204 KB Output is correct
9 Correct 4 ms 5152 KB Output is correct
10 Correct 3 ms 5152 KB Output is correct
11 Correct 3 ms 5152 KB Output is correct
12 Correct 4 ms 5496 KB Output is correct
13 Correct 3 ms 5592 KB Output is correct
14 Correct 3 ms 5588 KB Output is correct
15 Correct 4 ms 5588 KB Output is correct
16 Correct 4 ms 5548 KB Output is correct
17 Correct 4 ms 5588 KB Output is correct
18 Correct 4 ms 5588 KB Output is correct
19 Correct 5 ms 5672 KB Output is correct
20 Correct 6 ms 5804 KB Output is correct
21 Correct 5 ms 5800 KB Output is correct
22 Correct 7 ms 5928 KB Output is correct
23 Correct 19 ms 14984 KB Output is correct
24 Correct 18 ms 14972 KB Output is correct
25 Correct 26 ms 14900 KB Output is correct
26 Correct 24 ms 14884 KB Output is correct
27 Correct 19 ms 14940 KB Output is correct
28 Correct 687 ms 19920 KB Output is correct
29 Correct 139 ms 15496 KB Output is correct
30 Correct 788 ms 20096 KB Output is correct
31 Correct 885 ms 21600 KB Output is correct
32 Correct 78 ms 15000 KB Output is correct
33 Correct 298 ms 16416 KB Output is correct
34 Correct 5 ms 5588 KB Output is correct
35 Correct 4 ms 5588 KB Output is correct
36 Correct 5 ms 5588 KB Output is correct
37 Correct 4 ms 5676 KB Output is correct
38 Correct 5 ms 5716 KB Output is correct
39 Correct 5 ms 5844 KB Output is correct
40 Correct 6 ms 5768 KB Output is correct
41 Correct 6 ms 5932 KB Output is correct
42 Correct 6 ms 5972 KB Output is correct
43 Correct 7 ms 5844 KB Output is correct
44 Correct 6 ms 5972 KB Output is correct
45 Correct 22 ms 15012 KB Output is correct
46 Correct 28 ms 14984 KB Output is correct
47 Correct 25 ms 14992 KB Output is correct
48 Incorrect 25 ms 14940 KB Output isn't correct
49 Halted 0 ms 0 KB -