oj.uz

Submission #1009567

# Submission time Handle Problem Language Result Execution time Memory
1009567 2024-06-27T15:48:04 Z bachhoangxuan Radio Towers (IOI22_towers) C++17
56 / 100
 4000 ms 10744 KB 
#include "towers.h"
#include <bits/stdc++.h>
using namespace std;
const int maxn = 1e5+5;
const int maxl = 20;

int N,D=-1;
vector<int> H;
int nxt[maxn][maxl],lt[maxn],rt[maxn];

void build(int _D){
    vector<int> v;D=_D;
    for(int i=0;i<=N;i++) lt[i]=rt[i]=-1,nxt[i][0]=N;
    for(int i=0;i<N;i++){
        while(!v.empty() && H[v.back()]>H[i]) v.pop_back();
        int l=0,r=(int)v.size()-1;
        while(l<=r){
            int mid=(l+r)>>1;
            if(H[v[mid]]<=H[i]-D) lt[i]=v[mid],l=mid+1;
            else r=mid-1;
        }
        v.push_back(i);
    }
    v.clear();
    for(int i=N-1;i>=0;i--){
        while(!v.empty() && H[v.back()]>H[i]) v.pop_back();
        int l=0,r=(int)v.size()-1;
        while(l<=r){
            int mid=(l+r)>>1;
            if(H[v[mid]]<=H[i]-D) rt[i]=v[mid],l=mid+1;
            else r=mid-1;
        }
        v.push_back(i);
    }
    for(int i=0;i<N;i++){
        if(lt[i]==-1 || rt[i]==-1) continue;
        nxt[lt[i]][0]=min(nxt[lt[i]][0],rt[i]);
    }
    for(int i=N-1;i>=0;i--) nxt[i][0]=min(nxt[i][0],nxt[i+1][0]);
    for(int i=1;i<18;i++) for(int j=0;j<=N;j++) nxt[j][i]=nxt[nxt[j][i-1]][i-1];
}

void init(int _N, std::vector<int> _H){
    N=_N;H=_H;
}

int max_towers(int L, int R, int _D){
    if(_D!=D) build(_D);
    int cnt=1;
    for(int i=17;i>=0;i--){
        if(nxt[L][i]<=R) L=nxt[L][i],cnt+=(1<<i);
    }
    return cnt;
}

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4070 ms 7912 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 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2392 KB Output is correct
4 Correct 2 ms 2392 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 0 ms 2392 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 2392 KB Output is correct
15 Correct 1 ms 2392 KB Output is correct
16 Correct 1 ms 2392 KB Output is correct
17 Correct 1 ms 2392 KB Output is correct
18 Correct 1 ms 2392 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 1 ms 2392 KB Output is correct
21 Correct 1 ms 2392 KB Output is correct
22 Correct 1 ms 2392 KB Output is correct
23 Correct 1 ms 2392 KB Output is correct
24 Correct 1 ms 2392 KB Output is correct
25 Correct 0 ms 2392 KB Output is correct
26 Correct 1 ms 2392 KB Output is correct
27 Correct 1 ms 2392 KB Output is correct
28 Correct 1 ms 2392 KB Output is correct
29 Correct 1 ms 2392 KB Output is correct
30 Correct 1 ms 2392 KB Output is correct
31 Correct 1 ms 2392 KB Output is correct
32 Correct 1 ms 2392 KB Output is correct
33 Correct 1 ms 2392 KB Output is correct
34 Correct 1 ms 2392 KB Output is correct
35 Correct 1 ms 2392 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2392 KB Output is correct
4 Correct 2 ms 2392 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 0 ms 2392 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 2392 KB Output is correct
15 Correct 1 ms 2392 KB Output is correct
16 Correct 1 ms 2392 KB Output is correct
17 Correct 1 ms 2392 KB Output is correct
18 Correct 1 ms 2392 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 1 ms 2392 KB Output is correct
21 Correct 1 ms 2392 KB Output is correct
22 Correct 1 ms 2392 KB Output is correct
23 Correct 1 ms 2392 KB Output is correct
24 Correct 1 ms 2392 KB Output is correct
25 Correct 0 ms 2392 KB Output is correct
26 Correct 1 ms 2392 KB Output is correct
27 Correct 1 ms 2392 KB Output is correct
28 Correct 1 ms 2392 KB Output is correct
29 Correct 1 ms 2392 KB Output is correct
30 Correct 1 ms 2392 KB Output is correct
31 Correct 1 ms 2392 KB Output is correct
32 Correct 1 ms 2392 KB Output is correct
33 Correct 1 ms 2392 KB Output is correct
34 Correct 1 ms 2392 KB Output is correct
35 Correct 1 ms 2392 KB Output is correct
36 Correct 11 ms 7256 KB Output is correct
37 Correct 16 ms 9680 KB Output is correct
38 Correct 25 ms 9680 KB Output is correct
39 Correct 14 ms 9680 KB Output is correct
40 Correct 17 ms 9668 KB Output is correct
41 Correct 20 ms 9836 KB Output is correct
42 Correct 15 ms 9664 KB Output is correct
43 Correct 17 ms 10704 KB Output is correct
44 Correct 18 ms 10704 KB Output is correct
45 Correct 14 ms 10176 KB Output is correct
46 Correct 20 ms 10192 KB Output is correct
47 Correct 15 ms 9680 KB Output is correct
48 Correct 15 ms 9780 KB Output is correct
49 Correct 14 ms 9680 KB Output is correct
50 Correct 16 ms 10624 KB Output is correct
51 Correct 15 ms 10704 KB Output is correct
52 Correct 16 ms 9676 KB Output is correct
53 Correct 16 ms 9680 KB Output is correct
54 Correct 23 ms 9680 KB Output is correct
55 Correct 16 ms 10552 KB Output is correct
56 Correct 20 ms 10192 KB Output is correct
57 Correct 15 ms 9436 KB Output is correct
58 Correct 16 ms 9680 KB Output is correct
59 Correct 16 ms 9680 KB Output is correct
60 Correct 15 ms 9680 KB Output is correct
61 Correct 16 ms 9680 KB Output is correct
62 Correct 20 ms 9680 KB Output is correct
63 Correct 16 ms 9680 KB Output is correct
64 Correct 15 ms 10704 KB Output is correct
65 Correct 16 ms 10704 KB Output is correct
66 Correct 25 ms 10276 KB Output is correct
67 Correct 15 ms 10704 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 548 ms 9684 KB Output is correct
2 Correct 680 ms 9680 KB Output is correct
3 Correct 673 ms 9680 KB Output is correct
4 Correct 689 ms 9680 KB Output is correct
5 Correct 681 ms 9680 KB Output is correct
6 Correct 669 ms 9680 KB Output is correct
7 Correct 687 ms 9680 KB Output is correct
8 Correct 682 ms 10700 KB Output is correct
9 Correct 622 ms 10704 KB Output is correct
10 Correct 666 ms 10448 KB Output is correct
11 Correct 675 ms 10448 KB Output is correct
12 Correct 659 ms 10704 KB Output is correct
13 Correct 692 ms 10696 KB Output is correct
14 Correct 0 ms 2392 KB Output is correct
15 Correct 1 ms 2392 KB Output is correct
16 Correct 1 ms 2392 KB Output is correct
17 Correct 20 ms 9828 KB Output is correct
18 Correct 13 ms 9680 KB Output is correct
19 Correct 13 ms 9680 KB Output is correct
20 Correct 13 ms 10704 KB Output is correct
21 Correct 13 ms 10740 KB Output is correct
22 Correct 20 ms 9840 KB Output is correct
23 Correct 13 ms 9680 KB Output is correct
24 Correct 16 ms 9676 KB Output is correct
25 Correct 20 ms 10704 KB Output is correct
26 Correct 14 ms 10192 KB Output is correct
27 Correct 1 ms 2392 KB Output is correct
28 Correct 1 ms 2392 KB Output is correct
29 Correct 1 ms 2392 KB Output is correct
30 Correct 1 ms 2392 KB Output is correct
31 Correct 1 ms 2392 KB Output is correct
32 Correct 0 ms 2392 KB Output is correct
33 Correct 1 ms 2392 KB Output is correct
34 Correct 1 ms 2392 KB Output is correct
35 Correct 1 ms 2392 KB Output is correct
36 Correct 0 ms 2392 KB Output is correct

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4054 ms 4952 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2392 KB Output is correct
4 Correct 2 ms 2392 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 0 ms 2392 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 2392 KB Output is correct
15 Correct 1 ms 2392 KB Output is correct
16 Correct 1 ms 2392 KB Output is correct
17 Correct 1 ms 2392 KB Output is correct
18 Correct 1 ms 2392 KB Output is correct
19 Correct 1 ms 2392 KB Output is correct
20 Correct 1 ms 2392 KB Output is correct
21 Correct 1 ms 2392 KB Output is correct
22 Correct 1 ms 2392 KB Output is correct
23 Correct 1 ms 2392 KB Output is correct
24 Correct 1 ms 2392 KB Output is correct
25 Correct 0 ms 2392 KB Output is correct
26 Correct 1 ms 2392 KB Output is correct
27 Correct 1 ms 2392 KB Output is correct
28 Correct 1 ms 2392 KB Output is correct
29 Correct 1 ms 2392 KB Output is correct
30 Correct 1 ms 2392 KB Output is correct
31 Correct 1 ms 2392 KB Output is correct
32 Correct 1 ms 2392 KB Output is correct
33 Correct 1 ms 2392 KB Output is correct
34 Correct 1 ms 2392 KB Output is correct
35 Correct 1 ms 2392 KB Output is correct
36 Correct 11 ms 7256 KB Output is correct
37 Correct 16 ms 9680 KB Output is correct
38 Correct 25 ms 9680 KB Output is correct
39 Correct 14 ms 9680 KB Output is correct
40 Correct 17 ms 9668 KB Output is correct
41 Correct 20 ms 9836 KB Output is correct
42 Correct 15 ms 9664 KB Output is correct
43 Correct 17 ms 10704 KB Output is correct
44 Correct 18 ms 10704 KB Output is correct
45 Correct 14 ms 10176 KB Output is correct
46 Correct 20 ms 10192 KB Output is correct
47 Correct 15 ms 9680 KB Output is correct
48 Correct 15 ms 9780 KB Output is correct
49 Correct 14 ms 9680 KB Output is correct
50 Correct 16 ms 10624 KB Output is correct
51 Correct 15 ms 10704 KB Output is correct
52 Correct 16 ms 9676 KB Output is correct
53 Correct 16 ms 9680 KB Output is correct
54 Correct 23 ms 9680 KB Output is correct
55 Correct 16 ms 10552 KB Output is correct
56 Correct 20 ms 10192 KB Output is correct
57 Correct 15 ms 9436 KB Output is correct
58 Correct 16 ms 9680 KB Output is correct
59 Correct 16 ms 9680 KB Output is correct
60 Correct 15 ms 9680 KB Output is correct
61 Correct 16 ms 9680 KB Output is correct
62 Correct 20 ms 9680 KB Output is correct
63 Correct 16 ms 9680 KB Output is correct
64 Correct 15 ms 10704 KB Output is correct
65 Correct 16 ms 10704 KB Output is correct
66 Correct 25 ms 10276 KB Output is correct
67 Correct 15 ms 10704 KB Output is correct
68 Correct 548 ms 9684 KB Output is correct
69 Correct 680 ms 9680 KB Output is correct
70 Correct 673 ms 9680 KB Output is correct
71 Correct 689 ms 9680 KB Output is correct
72 Correct 681 ms 9680 KB Output is correct
73 Correct 669 ms 9680 KB Output is correct
74 Correct 687 ms 9680 KB Output is correct
75 Correct 682 ms 10700 KB Output is correct
76 Correct 622 ms 10704 KB Output is correct
77 Correct 666 ms 10448 KB Output is correct
78 Correct 675 ms 10448 KB Output is correct
79 Correct 659 ms 10704 KB Output is correct
80 Correct 692 ms 10696 KB Output is correct
81 Correct 0 ms 2392 KB Output is correct
82 Correct 1 ms 2392 KB Output is correct
83 Correct 1 ms 2392 KB Output is correct
84 Correct 20 ms 9828 KB Output is correct
85 Correct 13 ms 9680 KB Output is correct
86 Correct 13 ms 9680 KB Output is correct
87 Correct 13 ms 10704 KB Output is correct
88 Correct 13 ms 10740 KB Output is correct
89 Correct 20 ms 9840 KB Output is correct
90 Correct 13 ms 9680 KB Output is correct
91 Correct 16 ms 9676 KB Output is correct
92 Correct 20 ms 10704 KB Output is correct
93 Correct 14 ms 10192 KB Output is correct
94 Correct 1 ms 2392 KB Output is correct
95 Correct 1 ms 2392 KB Output is correct
96 Correct 1 ms 2392 KB Output is correct
97 Correct 1 ms 2392 KB Output is correct
98 Correct 1 ms 2392 KB Output is correct
99 Correct 0 ms 2392 KB Output is correct
100 Correct 1 ms 2392 KB Output is correct
101 Correct 1 ms 2392 KB Output is correct
102 Correct 1 ms 2392 KB Output is correct
103 Correct 0 ms 2392 KB Output is correct
104 Correct 558 ms 9468 KB Output is correct
105 Correct 688 ms 9680 KB Output is correct
106 Correct 689 ms 9680 KB Output is correct
107 Correct 685 ms 9680 KB Output is correct
108 Correct 622 ms 9680 KB Output is correct
109 Correct 721 ms 9680 KB Output is correct
110 Correct 658 ms 9680 KB Output is correct
111 Correct 612 ms 10744 KB Output is correct
112 Correct 610 ms 10704 KB Output is correct
113 Correct 656 ms 10184 KB Output is correct
114 Correct 638 ms 10704 KB Output is correct

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4070 ms 7912 KB Time limit exceeded
2 Halted 0 ms 0 KB -