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Submission #1055628

# Submission time Handle Problem Language Result Execution time Memory
1055628 2024-08-13T00:46:58 Z vjudge1 Radio Towers (IOI22_towers) C++17
23 / 100
 4000 ms 94048 KB 
#include "towers.h"

#include <bits/stdc++.h>
using namespace std;
vector<int>H,addto;
void init(int N, std::vector<int> H_) {
    H=H_;
}
struct fenwickt{
    int T[100100];
    int qry(int n){
        n++;
        int ans=0;
        while(n)
            ans=max(ans,T[n]),n-=n&-n;
        return ans;
    }
    void upd(int n,int p){
        n++;
        while(n<100100)
            T[n]=max(T[n],p),n+=n&-n;
    }
} ST;

vector<pair<int,int>>inser[100100];
int max_towers(int l, int r, int D) {
    int n=H.size();
    vector<int>stk;
    stk.push_back(n);
    H.push_back(2e9);
    addto.resize(n);
    for(int i=r;i>=l;i--){
        while(H[stk.back()]<H[i])
            stk.pop_back();
        H[i]+=D;
        addto[i]=*--upper_bound(stk.begin(),stk.end(),i,[](int a,int b){
            return H[a]>H[b];
        });
        H[i]-=D;
        stk.push_back(i);
    }
    int ans=0;
    stk.clear();
    for(int i=l;i<=r;i++){
        for(auto[pos,v]:inser[i])
            ST.upd(pos,v);
        while(stk.size()&&H[stk.back()]<H[i])
            stk.pop_back();
        H[i]+=D;
        auto it=upper_bound(stk.begin(),stk.end(),i,[](int a,int b){
            return H[a]>H[b];
        });
        H[i]-=D;
        int Pos=0;
        if(it!=stk.begin())
        Pos=*--it;
        int dp=ST.qry(Pos-1)+1;
        inser[addto[i]+1].push_back({i,dp});
        ans=max(ans,dp);
        stk.push_back(i);
    }

    return ans;
}

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4027 ms 90836 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2648 KB Output is correct
2 Correct 1 ms 2648 KB Output is correct
3 Correct 1 ms 2648 KB Output is correct
4 Correct 1 ms 2648 KB Output is correct
5 Correct 1 ms 2648 KB Output is correct
6 Correct 1 ms 2648 KB Output is correct
7 Correct 1 ms 2796 KB Output is correct
8 Correct 1 ms 2648 KB Output is correct
9 Correct 1 ms 2648 KB Output is correct
10 Correct 2 ms 2648 KB Output is correct
11 Correct 1 ms 2648 KB Output is correct
12 Correct 1 ms 2648 KB Output is correct
13 Correct 1 ms 2648 KB Output is correct
14 Correct 1 ms 2648 KB Output is correct
15 Correct 1 ms 2648 KB Output is correct
16 Correct 1 ms 2648 KB Output is correct
17 Correct 2 ms 2648 KB Output is correct
18 Correct 1 ms 2648 KB Output is correct
19 Correct 1 ms 2824 KB Output is correct
20 Correct 1 ms 2648 KB Output is correct
21 Correct 1 ms 2648 KB Output is correct
22 Correct 1 ms 2648 KB Output is correct
23 Correct 1 ms 2648 KB Output is correct
24 Correct 1 ms 2904 KB Output is correct
25 Correct 1 ms 2648 KB Output is correct
26 Correct 1 ms 2648 KB Output is correct
27 Correct 1 ms 2648 KB Output is correct
28 Correct 1 ms 2648 KB Output is correct
29 Correct 1 ms 2648 KB Output is correct
30 Correct 1 ms 2676 KB Output is correct
31 Correct 1 ms 2648 KB Output is correct
32 Correct 1 ms 2648 KB Output is correct
33 Correct 1 ms 2648 KB Output is correct
34 Correct 1 ms 2648 KB Output is correct
35 Correct 1 ms 2648 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2648 KB Output is correct
2 Correct 1 ms 2648 KB Output is correct
3 Correct 1 ms 2648 KB Output is correct
4 Correct 1 ms 2648 KB Output is correct
5 Correct 1 ms 2648 KB Output is correct
6 Correct 1 ms 2648 KB Output is correct
7 Correct 1 ms 2796 KB Output is correct
8 Correct 1 ms 2648 KB Output is correct
9 Correct 1 ms 2648 KB Output is correct
10 Correct 2 ms 2648 KB Output is correct
11 Correct 1 ms 2648 KB Output is correct
12 Correct 1 ms 2648 KB Output is correct
13 Correct 1 ms 2648 KB Output is correct
14 Correct 1 ms 2648 KB Output is correct
15 Correct 1 ms 2648 KB Output is correct
16 Correct 1 ms 2648 KB Output is correct
17 Correct 2 ms 2648 KB Output is correct
18 Correct 1 ms 2648 KB Output is correct
19 Correct 1 ms 2824 KB Output is correct
20 Correct 1 ms 2648 KB Output is correct
21 Correct 1 ms 2648 KB Output is correct
22 Correct 1 ms 2648 KB Output is correct
23 Correct 1 ms 2648 KB Output is correct
24 Correct 1 ms 2904 KB Output is correct
25 Correct 1 ms 2648 KB Output is correct
26 Correct 1 ms 2648 KB Output is correct
27 Correct 1 ms 2648 KB Output is correct
28 Correct 1 ms 2648 KB Output is correct
29 Correct 1 ms 2648 KB Output is correct
30 Correct 1 ms 2676 KB Output is correct
31 Correct 1 ms 2648 KB Output is correct
32 Correct 1 ms 2648 KB Output is correct
33 Correct 1 ms 2648 KB Output is correct
34 Correct 1 ms 2648 KB Output is correct
35 Correct 1 ms 2648 KB Output is correct
36 Correct 7 ms 3928 KB Output is correct
37 Correct 16 ms 4464 KB Output is correct
38 Correct 9 ms 4168 KB Output is correct
39 Correct 9 ms 4424 KB Output is correct
40 Correct 9 ms 4048 KB Output is correct
41 Correct 20 ms 5448 KB Output is correct
42 Correct 8 ms 3928 KB Output is correct
43 Correct 11 ms 5324 KB Output is correct
44 Correct 8 ms 4168 KB Output is correct
45 Correct 8 ms 3956 KB Output is correct
46 Correct 8 ms 3928 KB Output is correct
47 Correct 11 ms 4680 KB Output is correct
48 Correct 10 ms 4300 KB Output is correct
49 Correct 9 ms 4168 KB Output is correct
50 Correct 9 ms 4168 KB Output is correct
51 Correct 12 ms 5448 KB Output is correct
52 Correct 16 ms 6016 KB Output is correct
53 Correct 15 ms 6216 KB Output is correct
54 Correct 15 ms 6096 KB Output is correct
55 Correct 12 ms 5448 KB Output is correct
56 Correct 15 ms 7752 KB Output is correct
57 Correct 22 ms 5216 KB Output is correct
58 Correct 15 ms 5448 KB Output is correct
59 Correct 22 ms 5732 KB Output is correct
60 Correct 15 ms 5972 KB Output is correct
61 Correct 21 ms 5960 KB Output is correct
62 Correct 14 ms 5684 KB Output is correct
63 Correct 16 ms 6212 KB Output is correct
64 Correct 13 ms 6216 KB Output is correct
65 Correct 11 ms 5448 KB Output is correct
66 Correct 19 ms 5984 KB Output is correct
67 Correct 16 ms 5444 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4067 ms 94048 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4034 ms 54516 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2648 KB Output is correct
2 Correct 1 ms 2648 KB Output is correct
3 Correct 1 ms 2648 KB Output is correct
4 Correct 1 ms 2648 KB Output is correct
5 Correct 1 ms 2648 KB Output is correct
6 Correct 1 ms 2648 KB Output is correct
7 Correct 1 ms 2796 KB Output is correct
8 Correct 1 ms 2648 KB Output is correct
9 Correct 1 ms 2648 KB Output is correct
10 Correct 2 ms 2648 KB Output is correct
11 Correct 1 ms 2648 KB Output is correct
12 Correct 1 ms 2648 KB Output is correct
13 Correct 1 ms 2648 KB Output is correct
14 Correct 1 ms 2648 KB Output is correct
15 Correct 1 ms 2648 KB Output is correct
16 Correct 1 ms 2648 KB Output is correct
17 Correct 2 ms 2648 KB Output is correct
18 Correct 1 ms 2648 KB Output is correct
19 Correct 1 ms 2824 KB Output is correct
20 Correct 1 ms 2648 KB Output is correct
21 Correct 1 ms 2648 KB Output is correct
22 Correct 1 ms 2648 KB Output is correct
23 Correct 1 ms 2648 KB Output is correct
24 Correct 1 ms 2904 KB Output is correct
25 Correct 1 ms 2648 KB Output is correct
26 Correct 1 ms 2648 KB Output is correct
27 Correct 1 ms 2648 KB Output is correct
28 Correct 1 ms 2648 KB Output is correct
29 Correct 1 ms 2648 KB Output is correct
30 Correct 1 ms 2676 KB Output is correct
31 Correct 1 ms 2648 KB Output is correct
32 Correct 1 ms 2648 KB Output is correct
33 Correct 1 ms 2648 KB Output is correct
34 Correct 1 ms 2648 KB Output is correct
35 Correct 1 ms 2648 KB Output is correct
36 Correct 7 ms 3928 KB Output is correct
37 Correct 16 ms 4464 KB Output is correct
38 Correct 9 ms 4168 KB Output is correct
39 Correct 9 ms 4424 KB Output is correct
40 Correct 9 ms 4048 KB Output is correct
41 Correct 20 ms 5448 KB Output is correct
42 Correct 8 ms 3928 KB Output is correct
43 Correct 11 ms 5324 KB Output is correct
44 Correct 8 ms 4168 KB Output is correct
45 Correct 8 ms 3956 KB Output is correct
46 Correct 8 ms 3928 KB Output is correct
47 Correct 11 ms 4680 KB Output is correct
48 Correct 10 ms 4300 KB Output is correct
49 Correct 9 ms 4168 KB Output is correct
50 Correct 9 ms 4168 KB Output is correct
51 Correct 12 ms 5448 KB Output is correct
52 Correct 16 ms 6016 KB Output is correct
53 Correct 15 ms 6216 KB Output is correct
54 Correct 15 ms 6096 KB Output is correct
55 Correct 12 ms 5448 KB Output is correct
56 Correct 15 ms 7752 KB Output is correct
57 Correct 22 ms 5216 KB Output is correct
58 Correct 15 ms 5448 KB Output is correct
59 Correct 22 ms 5732 KB Output is correct
60 Correct 15 ms 5972 KB Output is correct
61 Correct 21 ms 5960 KB Output is correct
62 Correct 14 ms 5684 KB Output is correct
63 Correct 16 ms 6212 KB Output is correct
64 Correct 13 ms 6216 KB Output is correct
65 Correct 11 ms 5448 KB Output is correct
66 Correct 19 ms 5984 KB Output is correct
67 Correct 16 ms 5444 KB Output is correct
68 Execution timed out 4067 ms 94048 KB Time limit exceeded
69 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4027 ms 90836 KB Time limit exceeded
2 Halted 0 ms 0 KB -