답안 #622561

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
622561	2022-08-04T11:32:41 Z	KoD	고대 책들 (IOI17_books)	C++17	50 / 100	145 ms	27864 KB

books

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

using ll = long long;
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);
        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;
        }
    }
    int a = left[s], b = right[s], l = s, r = s;
    const auto add = [&](const int k) {
        a = std::min(a, left[k]);
        b = std::max(b, right[k]);
    };
    while (true) {
        while (a < l or r < b) {
            if (a < l) {
                l -= 1;
                add(l);
            } else {
                r += 1;
                add(r);
            }
        }
        if (0 == l and r == N - 1) {
            break;
        }
        ans += 2;
        if (0 < l and (r == N - 1 or (right[r + 1] - left[r + 1]) < (right[l - 1] - left[l - 1]))) {
            l -= 1;
            add(l);
        } else {
            r += 1;
            add(r);
        }
    }
    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	296 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	300 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 ms	212 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	292 KB	Output is correct
16	Correct	0 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	296 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	300 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 ms	212 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	292 KB	Output is correct
16	Correct	0 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	1 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	280 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	308 KB	Output is correct
29	Correct	1 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	296 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	300 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 ms	212 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	292 KB	Output is correct
16	Correct	0 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	1 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	280 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	308 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct
30	Correct	145 ms	27864 KB	Output is correct
31	Correct	138 ms	25780 KB	Output is correct
32	Correct	82 ms	14828 KB	Output is correct
33	Correct	124 ms	23676 KB	Output is correct
34	Correct	134 ms	23660 KB	Output is correct
35	Correct	122 ms	23660 KB	Output is correct
36	Correct	112 ms	23656 KB	Output is correct
37	Correct	108 ms	23776 KB	Output is correct
38	Correct	120 ms	23656 KB	Output is correct
39	Correct	106 ms	23732 KB	Output is correct
40	Correct	110 ms	23964 KB	Output is correct
41	Correct	136 ms	26664 KB	Output is correct
42	Correct	115 ms	25236 KB	Output is correct
43	Correct	121 ms	23728 KB	Output is correct

Subtask #4

0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	1 ms	212 KB	3rd lines differ - on the 1st token, expected: '3304', found: '3506'
2	Halted	0 ms	0 KB	-

Subtask #5

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	296 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	300 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 ms	212 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	292 KB	Output is correct
16	Correct	0 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	1 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	280 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	308 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct
30	Correct	145 ms	27864 KB	Output is correct
31	Correct	138 ms	25780 KB	Output is correct
32	Correct	82 ms	14828 KB	Output is correct
33	Correct	124 ms	23676 KB	Output is correct
34	Correct	134 ms	23660 KB	Output is correct
35	Correct	122 ms	23660 KB	Output is correct
36	Correct	112 ms	23656 KB	Output is correct
37	Correct	108 ms	23776 KB	Output is correct
38	Correct	120 ms	23656 KB	Output is correct
39	Correct	106 ms	23732 KB	Output is correct
40	Correct	110 ms	23964 KB	Output is correct
41	Correct	136 ms	26664 KB	Output is correct
42	Correct	115 ms	25236 KB	Output is correct
43	Correct	121 ms	23728 KB	Output is correct
44	Incorrect	1 ms	212 KB	3rd lines differ - on the 1st token, expected: '3304', found: '3506'
45	Halted	0 ms	0 KB	-