Submission #1020315

# Submission time Handle Problem Language Result Execution time Memory
1020315 2024-07-11T22:13:38 Z kym Radio Towers (IOI22_towers) C++17
23 / 100
4000 ms 5072 KB
#include "towers.h"
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 100005;
vector<int>A;
int n;
struct node {
	int tree[4*MAXN];
	void build(int node, int s, int e){
		tree[node]=0;
		if(s!=e){
			int m=(s+e)/2;
			build(node<<1,s,m);
			build(node<<1|1,m+1,e);
		}
	}
	void update(int node, int s, int e, int x, int nval){
		if(s==e){
			tree[node]=nval;
			return;
		}
		int m=(s+e)/2;
		if(x<=m)update(node<<1,s,m,x,nval);
		else update(node<<1|1,m+1,e,x,nval);
		tree[node]=max(tree[node<<1],tree[node<<1|1]);
	}
	int query(int node, int s, int e, int x, int y){
		if(s==x&&e==y)return tree[node];
		int m=(s+e)/2;
		if(y<=m)return query(node<<1,s,m,x,y);
		else if(x>m)return query(node<<1|1,m+1,e,x,y);
		else return max(query(node<<1,s,m,x,m),query(node<<1|1,m+1,e,m+1,y));
	}
	int walk(int node, int s, int e, int tar){
		if(s==e)return s;
		int m=(s+e)/2;
		if(tree[node<<1|1]>=tar)return walk(node<<1|1,m+1,e,tar);
		else return walk(node<<1,s,m,tar);
	}
}seg,sa;
int ls[MAXN];
void init(int N, std::vector<int> H) {
  	n=N;
  	A=H;
  	
}

typedef pair<int,int>pi;
int max_towers(int L, int R, int D) {
	sa.build(1,0,n);
	seg.build(1,0,n);
  	int dp[n+5];memset(dp,0,sizeof dp);
  	for(int i=0;i<n;i++)dp[i]=1;
  	int ans=1;
  	priority_queue<pi,vector<pi>,greater<pi>>pq;
  	for(int i=L;i<=R;i++){
  		int lf=sa.walk(1,0,n,A[i]+D);
  		if(L<=lf-1){
  			int mx=seg.query(1,0,n,L,lf-1);
  			dp[i]=max(dp[i],mx+1);
  			ans=max(ans,dp[i]);
  		}
	  	while(pq.size() && pq.top().first <= A[i]-D){
	  		pi cur=pq.top();pq.pop();
	  		//cerr<<cur.second<<" "<<dp[cur.second]<<"\n";
	  		seg.update(1,0,n,cur.second,dp[cur.second]);
	  	}
	  	sa.update(1,0,n,i,A[i]);
	  	pq.push({A[i],i});
	}
  	return ans;
}
# Verdict Execution time Memory Grader output
1 Execution timed out 4013 ms 3412 KB Time limit exceeded
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 596 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 1 ms 344 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 1 ms 344 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 596 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 1 ms 344 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 1 ms 344 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 13 ms 2136 KB Output is correct
37 Correct 15 ms 4036 KB Output is correct
38 Correct 13 ms 3772 KB Output is correct
39 Correct 13 ms 4048 KB Output is correct
40 Correct 13 ms 3536 KB Output is correct
41 Correct 36 ms 4492 KB Output is correct
42 Correct 10 ms 3536 KB Output is correct
43 Correct 18 ms 4028 KB Output is correct
44 Correct 11 ms 3792 KB Output is correct
45 Correct 10 ms 3520 KB Output is correct
46 Correct 10 ms 3536 KB Output is correct
47 Correct 23 ms 3680 KB Output is correct
48 Correct 15 ms 3676 KB Output is correct
49 Correct 12 ms 3536 KB Output is correct
50 Correct 14 ms 4048 KB Output is correct
51 Correct 23 ms 3516 KB Output is correct
52 Correct 34 ms 3536 KB Output is correct
53 Correct 34 ms 3604 KB Output is correct
54 Correct 34 ms 3536 KB Output is correct
55 Correct 27 ms 5072 KB Output is correct
56 Correct 26 ms 3536 KB Output is correct
57 Correct 35 ms 4544 KB Output is correct
58 Correct 33 ms 4296 KB Output is correct
59 Correct 36 ms 4048 KB Output is correct
60 Correct 40 ms 3536 KB Output is correct
61 Correct 35 ms 4040 KB Output is correct
62 Correct 40 ms 4548 KB Output is correct
63 Correct 35 ms 4052 KB Output is correct
64 Correct 32 ms 4560 KB Output is correct
65 Correct 30 ms 5072 KB Output is correct
66 Correct 28 ms 4048 KB Output is correct
67 Correct 22 ms 5072 KB Output is correct
# Verdict Execution time Memory Grader output
1 Execution timed out 4025 ms 3540 KB Time limit exceeded
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Execution timed out 4006 ms 1836 KB Time limit exceeded
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 596 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 1 ms 344 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 1 ms 344 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 13 ms 2136 KB Output is correct
37 Correct 15 ms 4036 KB Output is correct
38 Correct 13 ms 3772 KB Output is correct
39 Correct 13 ms 4048 KB Output is correct
40 Correct 13 ms 3536 KB Output is correct
41 Correct 36 ms 4492 KB Output is correct
42 Correct 10 ms 3536 KB Output is correct
43 Correct 18 ms 4028 KB Output is correct
44 Correct 11 ms 3792 KB Output is correct
45 Correct 10 ms 3520 KB Output is correct
46 Correct 10 ms 3536 KB Output is correct
47 Correct 23 ms 3680 KB Output is correct
48 Correct 15 ms 3676 KB Output is correct
49 Correct 12 ms 3536 KB Output is correct
50 Correct 14 ms 4048 KB Output is correct
51 Correct 23 ms 3516 KB Output is correct
52 Correct 34 ms 3536 KB Output is correct
53 Correct 34 ms 3604 KB Output is correct
54 Correct 34 ms 3536 KB Output is correct
55 Correct 27 ms 5072 KB Output is correct
56 Correct 26 ms 3536 KB Output is correct
57 Correct 35 ms 4544 KB Output is correct
58 Correct 33 ms 4296 KB Output is correct
59 Correct 36 ms 4048 KB Output is correct
60 Correct 40 ms 3536 KB Output is correct
61 Correct 35 ms 4040 KB Output is correct
62 Correct 40 ms 4548 KB Output is correct
63 Correct 35 ms 4052 KB Output is correct
64 Correct 32 ms 4560 KB Output is correct
65 Correct 30 ms 5072 KB Output is correct
66 Correct 28 ms 4048 KB Output is correct
67 Correct 22 ms 5072 KB Output is correct
68 Execution timed out 4025 ms 3540 KB Time limit exceeded
69 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Execution timed out 4013 ms 3412 KB Time limit exceeded
2 Halted 0 ms 0 KB -