답안 #667085

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
667085	2022-11-30T11:13:20 Z	tatyam	송신탑 (IOI22_towers)	C++17	23 / 100	4000 ms	12048 KB

towers

#include <bits/stdc++.h>
using namespace std;
template<class T> void chmax(T& a, T b){ if(a < b) a = b; }


int N;
vector<int> H;
vector<pair<int, int>> seg;
void init(int N, vector<int> H) {
    ::N = N;
    ::H = H;
    seg.resize(N * 2);
    for(int i = 0; i < N; i++) seg[N + i] = {H[i], i};
    for(int i = N; --i; ){
        seg[i] = max(seg[i << 1], seg[i << 1 | 1]);
    }
}
int argmax(int L, int R){
    L += N;
    R += N;
    pair<int, int> ans;
    while(L < R){
        if(L & 1) chmax(ans, seg[L++]);
        if(R & 1) chmax(ans, seg[--R]);
        L >>= 1; R >>= 1;
    }
    return ans.second;
}

int max_towers(int L, int R, int D) {
    auto dfs = [&](int L, int R, auto dfs) -> pair<int, int> {
        if(R - L == 0) return {0, INT_MAX};
        const int mid = argmax(L, R);
        const int x = H[mid];
        auto [c1, mn1] = dfs(L, mid, dfs);
        auto [c2, mn2] = dfs(mid + 1, R, dfs);
        if(c1 <= 1 && c2 <= 1){
            if(x - max(mn1, mn2) >= D) return {2, 0};
            return {1, min({mn1, mn2, x})};
        }
        if(c1 < c2){
            swap(c1, c2);
            swap(mn1, mn2);
        }
        if(c2 <= 1) return {c1 + (x - mn2 >= D), 0};
        return {c1 + c2, 0};
    };
    return dfs(L, R + 1, dfs).first;
}

Subtask #1
0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Execution timed out	4018 ms	6376 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	208 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	336 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	1 ms	336 KB	Output is correct
8	Correct	1 ms	336 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	336 KB	Output is correct
11	Correct	1 ms	336 KB	Output is correct
12	Correct	0 ms	208 KB	Output is correct
13	Correct	1 ms	336 KB	Output is correct
14	Correct	1 ms	336 KB	Output is correct
15	Correct	1 ms	336 KB	Output is correct
16	Correct	1 ms	336 KB	Output is correct
17	Correct	1 ms	336 KB	Output is correct
18	Correct	1 ms	336 KB	Output is correct
19	Correct	1 ms	336 KB	Output is correct
20	Correct	1 ms	336 KB	Output is correct
21	Correct	1 ms	336 KB	Output is correct
22	Correct	1 ms	336 KB	Output is correct
23	Correct	2 ms	464 KB	Output is correct
24	Correct	1 ms	464 KB	Output is correct
25	Correct	1 ms	288 KB	Output is correct
26	Correct	1 ms	336 KB	Output is correct
27	Correct	1 ms	336 KB	Output is correct
28	Correct	1 ms	336 KB	Output is correct
29	Correct	1 ms	336 KB	Output is correct
30	Correct	1 ms	336 KB	Output is correct
31	Correct	1 ms	336 KB	Output is correct
32	Correct	1 ms	464 KB	Output is correct
33	Correct	1 ms	464 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	208 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	336 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	1 ms	336 KB	Output is correct
8	Correct	1 ms	336 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	336 KB	Output is correct
11	Correct	1 ms	336 KB	Output is correct
12	Correct	0 ms	208 KB	Output is correct
13	Correct	1 ms	336 KB	Output is correct
14	Correct	1 ms	336 KB	Output is correct
15	Correct	1 ms	336 KB	Output is correct
16	Correct	1 ms	336 KB	Output is correct
17	Correct	1 ms	336 KB	Output is correct
18	Correct	1 ms	336 KB	Output is correct
19	Correct	1 ms	336 KB	Output is correct
20	Correct	1 ms	336 KB	Output is correct
21	Correct	1 ms	336 KB	Output is correct
22	Correct	1 ms	336 KB	Output is correct
23	Correct	2 ms	464 KB	Output is correct
24	Correct	1 ms	464 KB	Output is correct
25	Correct	1 ms	288 KB	Output is correct
26	Correct	1 ms	336 KB	Output is correct
27	Correct	1 ms	336 KB	Output is correct
28	Correct	1 ms	336 KB	Output is correct
29	Correct	1 ms	336 KB	Output is correct
30	Correct	1 ms	336 KB	Output is correct
31	Correct	1 ms	336 KB	Output is correct
32	Correct	1 ms	464 KB	Output is correct
33	Correct	1 ms	464 KB	Output is correct
34	Correct	1 ms	464 KB	Output is correct
35	Correct	1 ms	464 KB	Output is correct
36	Correct	9 ms	2000 KB	Output is correct
37	Correct	13 ms	2984 KB	Output is correct
38	Correct	13 ms	2984 KB	Output is correct
39	Correct	20 ms	2972 KB	Output is correct
40	Correct	12 ms	2976 KB	Output is correct
41	Correct	21 ms	2972 KB	Output is correct
42	Correct	20 ms	3016 KB	Output is correct
43	Correct	24 ms	7360 KB	Output is correct
44	Correct	14 ms	3912 KB	Output is correct
45	Correct	14 ms	3016 KB	Output is correct
46	Correct	18 ms	2988 KB	Output is correct
47	Correct	14 ms	3016 KB	Output is correct
48	Correct	12 ms	2960 KB	Output is correct
49	Correct	21 ms	2996 KB	Output is correct
50	Correct	13 ms	4672 KB	Output is correct
51	Correct	23 ms	6172 KB	Output is correct
52	Correct	15 ms	2976 KB	Output is correct
53	Correct	15 ms	2968 KB	Output is correct
54	Correct	22 ms	3016 KB	Output is correct
55	Correct	23 ms	11944 KB	Output is correct
56	Correct	22 ms	11072 KB	Output is correct
57	Correct	15 ms	2848 KB	Output is correct
58	Correct	16 ms	3016 KB	Output is correct
59	Correct	20 ms	2968 KB	Output is correct
60	Correct	15 ms	2968 KB	Output is correct
61	Correct	16 ms	2968 KB	Output is correct
62	Correct	16 ms	2976 KB	Output is correct
63	Correct	16 ms	2956 KB	Output is correct
64	Correct	30 ms	12048 KB	Output is correct
65	Correct	23 ms	11976 KB	Output is correct
66	Correct	21 ms	8256 KB	Output is correct
67	Correct	23 ms	11428 KB	Output is correct

Subtask #4
0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Execution timed out	4019 ms	3016 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	4002 ms	972 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	208 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	336 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	1 ms	336 KB	Output is correct
8	Correct	1 ms	336 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	336 KB	Output is correct
11	Correct	1 ms	336 KB	Output is correct
12	Correct	0 ms	208 KB	Output is correct
13	Correct	1 ms	336 KB	Output is correct
14	Correct	1 ms	336 KB	Output is correct
15	Correct	1 ms	336 KB	Output is correct
16	Correct	1 ms	336 KB	Output is correct
17	Correct	1 ms	336 KB	Output is correct
18	Correct	1 ms	336 KB	Output is correct
19	Correct	1 ms	336 KB	Output is correct
20	Correct	1 ms	336 KB	Output is correct
21	Correct	1 ms	336 KB	Output is correct
22	Correct	1 ms	336 KB	Output is correct
23	Correct	2 ms	464 KB	Output is correct
24	Correct	1 ms	464 KB	Output is correct
25	Correct	1 ms	288 KB	Output is correct
26	Correct	1 ms	336 KB	Output is correct
27	Correct	1 ms	336 KB	Output is correct
28	Correct	1 ms	336 KB	Output is correct
29	Correct	1 ms	336 KB	Output is correct
30	Correct	1 ms	336 KB	Output is correct
31	Correct	1 ms	336 KB	Output is correct
32	Correct	1 ms	464 KB	Output is correct
33	Correct	1 ms	464 KB	Output is correct
34	Correct	1 ms	464 KB	Output is correct
35	Correct	1 ms	464 KB	Output is correct
36	Correct	9 ms	2000 KB	Output is correct
37	Correct	13 ms	2984 KB	Output is correct
38	Correct	13 ms	2984 KB	Output is correct
39	Correct	20 ms	2972 KB	Output is correct
40	Correct	12 ms	2976 KB	Output is correct
41	Correct	21 ms	2972 KB	Output is correct
42	Correct	20 ms	3016 KB	Output is correct
43	Correct	24 ms	7360 KB	Output is correct
44	Correct	14 ms	3912 KB	Output is correct
45	Correct	14 ms	3016 KB	Output is correct
46	Correct	18 ms	2988 KB	Output is correct
47	Correct	14 ms	3016 KB	Output is correct
48	Correct	12 ms	2960 KB	Output is correct
49	Correct	21 ms	2996 KB	Output is correct
50	Correct	13 ms	4672 KB	Output is correct
51	Correct	23 ms	6172 KB	Output is correct
52	Correct	15 ms	2976 KB	Output is correct
53	Correct	15 ms	2968 KB	Output is correct
54	Correct	22 ms	3016 KB	Output is correct
55	Correct	23 ms	11944 KB	Output is correct
56	Correct	22 ms	11072 KB	Output is correct
57	Correct	15 ms	2848 KB	Output is correct
58	Correct	16 ms	3016 KB	Output is correct
59	Correct	20 ms	2968 KB	Output is correct
60	Correct	15 ms	2968 KB	Output is correct
61	Correct	16 ms	2968 KB	Output is correct
62	Correct	16 ms	2976 KB	Output is correct
63	Correct	16 ms	2956 KB	Output is correct
64	Correct	30 ms	12048 KB	Output is correct
65	Correct	23 ms	11976 KB	Output is correct
66	Correct	21 ms	8256 KB	Output is correct
67	Correct	23 ms	11428 KB	Output is correct
68	Execution timed out	4019 ms	3016 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	4018 ms	6376 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

답안 #667085

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