답안 #838627

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
838627	2023-08-27T13:31:00 Z	erekle	송신탑 (IOI22_towers)	C++17	23 / 100	4000 ms	11572 KB

towers

#include "towers.h"
#include <vector>
#include <algorithm>
#include <set>

using namespace std;

int n;
vector<int> H;
vector<pair<int, int>> byH;

const int MX_N = 1e5, LG = 17;
int rmq[1+LG][MX_N];
int p2[MX_N];
int rangeMax(int l, int r) {
    int p = p2[r-l+1];
    return max(rmq[p][l], rmq[p][r-(1<<p)+1]);
}
bool connected(int x, int y, int d) {
    if (x == y) return true;
    if (x > y) swap(x, y);
    if (x+1 == y) return false;
    return rangeMax(x+1, y-1) - d >= max(H[x], H[y]);
}

void init(int N, vector<int> Hs) {
    for (int i = 2; i <= N; ++i) p2[i] = p2[i-1] + !(i & (i-1));

    n = N, H = Hs;
    for (int i = 0; i < n; ++i) byH.emplace_back(H[i], i);
    sort(byH.begin(), byH.end());

    // rmq
    for (int i = 0; i < n; ++i) rmq[0][i] = H[i];
    for (int i = 1, p = 1; i <= LG; ++i, p <<= 1) {
        for (int j = 0; j < n; ++j) {
            if (j+p >= n) rmq[i][j] = rmq[i-1][j];
            else rmq[i][j] = max(rmq[i-1][j], rmq[i-1][j+p]);
        }
    }
}

int max_towers(int L, int R, int D) {
    set<int> included;
    for (auto [h, i] : byH) {
        if (i < L || i > R) continue;
        set<int>::iterator it = included.lower_bound(i);
        if (it != included.end() && !connected(i, *it, D)) continue;
        if (it != included.begin() && !connected(*prev(it), i, D)) continue;
        included.insert(i);
    }
    return included.size();
}

Subtask #1
0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Execution timed out	4067 ms	6036 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #2
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	336 KB	Output is correct
2	Correct	1 ms	464 KB	Output is correct
3	Correct	1 ms	464 KB	Output is correct
4	Correct	1 ms	464 KB	Output is correct
5	Correct	1 ms	464 KB	Output is correct
6	Correct	1 ms	464 KB	Output is correct
7	Correct	1 ms	464 KB	Output is correct
8	Correct	1 ms	464 KB	Output is correct
9	Correct	1 ms	464 KB	Output is correct
10	Correct	1 ms	464 KB	Output is correct
11	Correct	1 ms	464 KB	Output is correct
12	Correct	0 ms	336 KB	Output is correct
13	Correct	1 ms	464 KB	Output is correct
14	Correct	1 ms	464 KB	Output is correct
15	Correct	1 ms	464 KB	Output is correct
16	Correct	1 ms	464 KB	Output is correct
17	Correct	1 ms	464 KB	Output is correct
18	Correct	1 ms	464 KB	Output is correct
19	Correct	1 ms	464 KB	Output is correct
20	Correct	1 ms	464 KB	Output is correct
21	Correct	1 ms	592 KB	Output is correct
22	Correct	1 ms	592 KB	Output is correct
23	Correct	1 ms	464 KB	Output is correct
24	Correct	1 ms	464 KB	Output is correct
25	Correct	0 ms	336 KB	Output is correct
26	Correct	1 ms	464 KB	Output is correct
27	Correct	1 ms	464 KB	Output is correct
28	Correct	1 ms	512 KB	Output is correct
29	Correct	1 ms	464 KB	Output is correct
30	Correct	1 ms	464 KB	Output is correct
31	Correct	1 ms	464 KB	Output is correct
32	Correct	1 ms	464 KB	Output is correct
33	Correct	1 ms	512 KB	Output is correct
34	Correct	1 ms	464 KB	Output is correct
35	Correct	1 ms	464 KB	Output is correct

Subtask #3
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	336 KB	Output is correct
2	Correct	1 ms	464 KB	Output is correct
3	Correct	1 ms	464 KB	Output is correct
4	Correct	1 ms	464 KB	Output is correct
5	Correct	1 ms	464 KB	Output is correct
6	Correct	1 ms	464 KB	Output is correct
7	Correct	1 ms	464 KB	Output is correct
8	Correct	1 ms	464 KB	Output is correct
9	Correct	1 ms	464 KB	Output is correct
10	Correct	1 ms	464 KB	Output is correct
11	Correct	1 ms	464 KB	Output is correct
12	Correct	0 ms	336 KB	Output is correct
13	Correct	1 ms	464 KB	Output is correct
14	Correct	1 ms	464 KB	Output is correct
15	Correct	1 ms	464 KB	Output is correct
16	Correct	1 ms	464 KB	Output is correct
17	Correct	1 ms	464 KB	Output is correct
18	Correct	1 ms	464 KB	Output is correct
19	Correct	1 ms	464 KB	Output is correct
20	Correct	1 ms	464 KB	Output is correct
21	Correct	1 ms	592 KB	Output is correct
22	Correct	1 ms	592 KB	Output is correct
23	Correct	1 ms	464 KB	Output is correct
24	Correct	1 ms	464 KB	Output is correct
25	Correct	0 ms	336 KB	Output is correct
26	Correct	1 ms	464 KB	Output is correct
27	Correct	1 ms	464 KB	Output is correct
28	Correct	1 ms	512 KB	Output is correct
29	Correct	1 ms	464 KB	Output is correct
30	Correct	1 ms	464 KB	Output is correct
31	Correct	1 ms	464 KB	Output is correct
32	Correct	1 ms	464 KB	Output is correct
33	Correct	1 ms	512 KB	Output is correct
34	Correct	1 ms	464 KB	Output is correct
35	Correct	1 ms	464 KB	Output is correct
36	Correct	19 ms	6724 KB	Output is correct
37	Correct	24 ms	9752 KB	Output is correct
38	Correct	22 ms	9744 KB	Output is correct
39	Correct	25 ms	9728 KB	Output is correct
40	Correct	28 ms	9788 KB	Output is correct
41	Correct	34 ms	10152 KB	Output is correct
42	Correct	21 ms	9796 KB	Output is correct
43	Correct	17 ms	9796 KB	Output is correct
44	Correct	15 ms	9796 KB	Output is correct
45	Correct	15 ms	9796 KB	Output is correct
46	Correct	15 ms	9796 KB	Output is correct
47	Correct	27 ms	9796 KB	Output is correct
48	Correct	24 ms	9796 KB	Output is correct
49	Correct	22 ms	9788 KB	Output is correct
50	Correct	19 ms	9796 KB	Output is correct
51	Correct	21 ms	9744 KB	Output is correct
52	Correct	43 ms	10732 KB	Output is correct
53	Correct	43 ms	11548 KB	Output is correct
54	Correct	43 ms	11572 KB	Output is correct
55	Correct	16 ms	9740 KB	Output is correct
56	Correct	16 ms	9796 KB	Output is correct
57	Correct	37 ms	9624 KB	Output is correct
58	Correct	37 ms	10172 KB	Output is correct
59	Correct	38 ms	10420 KB	Output is correct
60	Correct	44 ms	11572 KB	Output is correct
61	Correct	41 ms	11204 KB	Output is correct
62	Correct	38 ms	10672 KB	Output is correct
63	Correct	42 ms	11188 KB	Output is correct
64	Correct	15 ms	9796 KB	Output is correct
65	Correct	21 ms	9744 KB	Output is correct
66	Correct	16 ms	9796 KB	Output is correct
67	Correct	21 ms	9744 KB	Output is correct

Subtask #4
0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Execution timed out	4078 ms	10676 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Execution timed out	4059 ms	2896 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #6
0 / 19.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	336 KB	Output is correct
2	Correct	1 ms	464 KB	Output is correct
3	Correct	1 ms	464 KB	Output is correct
4	Correct	1 ms	464 KB	Output is correct
5	Correct	1 ms	464 KB	Output is correct
6	Correct	1 ms	464 KB	Output is correct
7	Correct	1 ms	464 KB	Output is correct
8	Correct	1 ms	464 KB	Output is correct
9	Correct	1 ms	464 KB	Output is correct
10	Correct	1 ms	464 KB	Output is correct
11	Correct	1 ms	464 KB	Output is correct
12	Correct	0 ms	336 KB	Output is correct
13	Correct	1 ms	464 KB	Output is correct
14	Correct	1 ms	464 KB	Output is correct
15	Correct	1 ms	464 KB	Output is correct
16	Correct	1 ms	464 KB	Output is correct
17	Correct	1 ms	464 KB	Output is correct
18	Correct	1 ms	464 KB	Output is correct
19	Correct	1 ms	464 KB	Output is correct
20	Correct	1 ms	464 KB	Output is correct
21	Correct	1 ms	592 KB	Output is correct
22	Correct	1 ms	592 KB	Output is correct
23	Correct	1 ms	464 KB	Output is correct
24	Correct	1 ms	464 KB	Output is correct
25	Correct	0 ms	336 KB	Output is correct
26	Correct	1 ms	464 KB	Output is correct
27	Correct	1 ms	464 KB	Output is correct
28	Correct	1 ms	512 KB	Output is correct
29	Correct	1 ms	464 KB	Output is correct
30	Correct	1 ms	464 KB	Output is correct
31	Correct	1 ms	464 KB	Output is correct
32	Correct	1 ms	464 KB	Output is correct
33	Correct	1 ms	512 KB	Output is correct
34	Correct	1 ms	464 KB	Output is correct
35	Correct	1 ms	464 KB	Output is correct
36	Correct	19 ms	6724 KB	Output is correct
37	Correct	24 ms	9752 KB	Output is correct
38	Correct	22 ms	9744 KB	Output is correct
39	Correct	25 ms	9728 KB	Output is correct
40	Correct	28 ms	9788 KB	Output is correct
41	Correct	34 ms	10152 KB	Output is correct
42	Correct	21 ms	9796 KB	Output is correct
43	Correct	17 ms	9796 KB	Output is correct
44	Correct	15 ms	9796 KB	Output is correct
45	Correct	15 ms	9796 KB	Output is correct
46	Correct	15 ms	9796 KB	Output is correct
47	Correct	27 ms	9796 KB	Output is correct
48	Correct	24 ms	9796 KB	Output is correct
49	Correct	22 ms	9788 KB	Output is correct
50	Correct	19 ms	9796 KB	Output is correct
51	Correct	21 ms	9744 KB	Output is correct
52	Correct	43 ms	10732 KB	Output is correct
53	Correct	43 ms	11548 KB	Output is correct
54	Correct	43 ms	11572 KB	Output is correct
55	Correct	16 ms	9740 KB	Output is correct
56	Correct	16 ms	9796 KB	Output is correct
57	Correct	37 ms	9624 KB	Output is correct
58	Correct	37 ms	10172 KB	Output is correct
59	Correct	38 ms	10420 KB	Output is correct
60	Correct	44 ms	11572 KB	Output is correct
61	Correct	41 ms	11204 KB	Output is correct
62	Correct	38 ms	10672 KB	Output is correct
63	Correct	42 ms	11188 KB	Output is correct
64	Correct	15 ms	9796 KB	Output is correct
65	Correct	21 ms	9744 KB	Output is correct
66	Correct	16 ms	9796 KB	Output is correct
67	Correct	21 ms	9744 KB	Output is correct
68	Execution timed out	4078 ms	10676 KB	Time limit exceeded
69	Halted	0 ms	0 KB	-

Subtask #7
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Execution timed out	4067 ms	6036 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

답안 #838627

Compilation message

Subtask #1 0 / 4.0

Subtask #2 11.0 / 11.0

Subtask #3 12.0 / 12.0

Subtask #4 0 / 14.0

Subtask #5 0 / 17.0

Subtask #6 0 / 19.0

Subtask #7 0 / 23.0

Subtask #1
0 / 4.0

Subtask #2
11.0 / 11.0

Subtask #3
12.0 / 12.0

Subtask #4
0 / 14.0

Subtask #5
0 / 17.0

Subtask #6
0 / 19.0

Subtask #7
0 / 23.0