답안 #622634

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
622634	2022-08-04T12:50:22 Z	KoD	고대 책들 (IOI17_books)	C++17	100 / 100	152 ms	23788 KB

books

#include "books.h"
#include <bits/stdc++.h>

using ll = long long;
using std::pair;
using std::vector;

ll minimum_walk(vector<int> P, int s) {
    {
        int l = 0, r = (int)P.size() - 1;
        while (l < s and P[l] == l) {
            l += 1;
        }
        while (r > s and P[r] == r) {
            r -= 1;
        }
        P.erase(P.begin() + r + 1, P.end());
        P.erase(P.begin(), P.begin() + l);
        for (auto& x : P) {
            x -= l;
        }
        s -= l;
    }
    const int N = (int)P.size();
    vector<char> seen(N);
    vector<int> left(N), right(N);
    ll ans = 0;
    for (int i = 0; i < N; ++i) {
        ans += std::abs(P[i] - i);
        if (seen[i]) {
            continue;
        }
        vector<int> cycle;
        for (int j = i; !seen[j]; j = P[j]) {
            seen[j] = true;
            cycle.push_back(j);
        }
        const int l = *std::min_element(cycle.begin(), cycle.end());
        const int r = *std::max_element(cycle.begin(), cycle.end());
        for (const int j : cycle) {
            left[j] = l;
            right[j] = r;
        }
    }
    const auto extend = [&](int& l, int& r) {
        int a = std::min(left[l], left[r]), b = std::max(right[l], right[r]);
        while (a < l or r < b) {
            if (a < l) {
                l -= 1;
                a = std::min(a, left[l]);
                b = std::max(b, right[l]);
            } else {
                r += 1;
                a = std::min(a, left[r]);
                b = std::max(b, right[r]);
            }
        }
    };
    int l = s, r = s;
    while (true) {
        extend(l, r);
        int xl = l, xr = r, xc = 0;
        while (0 < xl and xr <= r) {
            xl -= 1;
            xc += 2;
            extend(xl, xr);
        }
        int yl = l, yr = r, yc = 0;
        while (l <= yl and yr < N - 1) {
            yr += 1;
            yc += 2;
            extend(yl, yr);
        }
        assert(!((xr > r) ^ (yl < l)));
        if (xr <= r) {
            ans += xc + yc;
            break;
        }
        ans += std::min(xc, yc);
        l = std::min(xl, yl);
        r = std::max(xr, yr);
    }
    return ans;
}

Subtask #1

12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	224 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct

Subtask #2

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	224 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	0 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	212 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct

Subtask #3

28.0 / 28.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	224 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	0 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	212 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	133 ms	21092 KB	Output is correct
31	Correct	152 ms	19048 KB	Output is correct
32	Correct	79 ms	8012 KB	Output is correct
33	Correct	152 ms	16884 KB	Output is correct
34	Correct	118 ms	16888 KB	Output is correct
35	Correct	119 ms	16876 KB	Output is correct
36	Correct	116 ms	16928 KB	Output is correct
37	Correct	103 ms	16948 KB	Output is correct
38	Correct	98 ms	16884 KB	Output is correct
39	Correct	97 ms	16952 KB	Output is correct
40	Correct	101 ms	17196 KB	Output is correct
41	Correct	120 ms	20016 KB	Output is correct
42	Correct	115 ms	18468 KB	Output is correct
43	Correct	116 ms	16872 KB	Output is correct

Subtask #4

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	300 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	308 KB	Output is correct

Subtask #5

30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	224 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	0 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	1 ms	212 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	212 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	133 ms	21092 KB	Output is correct
31	Correct	152 ms	19048 KB	Output is correct
32	Correct	79 ms	8012 KB	Output is correct
33	Correct	152 ms	16884 KB	Output is correct
34	Correct	118 ms	16888 KB	Output is correct
35	Correct	119 ms	16876 KB	Output is correct
36	Correct	116 ms	16928 KB	Output is correct
37	Correct	103 ms	16948 KB	Output is correct
38	Correct	98 ms	16884 KB	Output is correct
39	Correct	97 ms	16952 KB	Output is correct
40	Correct	101 ms	17196 KB	Output is correct
41	Correct	120 ms	20016 KB	Output is correct
42	Correct	115 ms	18468 KB	Output is correct
43	Correct	116 ms	16872 KB	Output is correct
44	Correct	0 ms	212 KB	Output is correct
45	Correct	0 ms	212 KB	Output is correct
46	Correct	0 ms	212 KB	Output is correct
47	Correct	0 ms	212 KB	Output is correct
48	Correct	0 ms	212 KB	Output is correct
49	Correct	0 ms	212 KB	Output is correct
50	Correct	1 ms	212 KB	Output is correct
51	Correct	0 ms	212 KB	Output is correct
52	Correct	0 ms	212 KB	Output is correct
53	Correct	1 ms	212 KB	Output is correct
54	Correct	0 ms	212 KB	Output is correct
55	Correct	0 ms	212 KB	Output is correct
56	Correct	1 ms	212 KB	Output is correct
57	Correct	1 ms	212 KB	Output is correct
58	Correct	1 ms	212 KB	Output is correct
59	Correct	1 ms	212 KB	Output is correct
60	Correct	1 ms	300 KB	Output is correct
61	Correct	1 ms	212 KB	Output is correct
62	Correct	1 ms	212 KB	Output is correct
63	Correct	1 ms	308 KB	Output is correct
64	Correct	118 ms	23684 KB	Output is correct
65	Correct	118 ms	23676 KB	Output is correct
66	Correct	104 ms	23628 KB	Output is correct
67	Correct	105 ms	23652 KB	Output is correct
68	Correct	11 ms	2516 KB	Output is correct
69	Correct	11 ms	2508 KB	Output is correct
70	Correct	11 ms	2516 KB	Output is correct
71	Correct	12 ms	2516 KB	Output is correct
72	Correct	12 ms	2480 KB	Output is correct
73	Correct	11 ms	2608 KB	Output is correct
74	Correct	128 ms	23788 KB	Output is correct
75	Correct	122 ms	23676 KB	Output is correct
76	Correct	121 ms	23660 KB	Output is correct
77	Correct	125 ms	23696 KB	Output is correct
78	Correct	122 ms	23680 KB	Output is correct
79	Correct	120 ms	23660 KB	Output is correct
80	Correct	81 ms	14812 KB	Output is correct
81	Correct	114 ms	23676 KB	Output is correct
82	Correct	112 ms	23656 KB	Output is correct
83	Correct	128 ms	23656 KB	Output is correct
84	Correct	122 ms	23652 KB	Output is correct
85	Correct	113 ms	23656 KB	Output is correct
86	Correct	106 ms	23656 KB	Output is correct
87	Correct	130 ms	23684 KB	Output is correct
88	Correct	128 ms	23660 KB	Output is correct
89	Correct	129 ms	23628 KB	Output is correct
90	Correct	101 ms	23628 KB	Output is correct
91	Correct	109 ms	23652 KB	Output is correct
92	Correct	111 ms	23656 KB	Output is correct