답안 #40284 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
40284	2018-01-30T15:40:22 Z	jackyliuxx	고대 책들 (IOI17_books)	C++14	50 / 100	277 ms	17652 KB

books

#include "books.h"
#include <bits/stdc++.h>
using namespace std;

long long minimum_walk(std::vector<int> p, int s) {
    long long ans = 0;
    int n = p.size();
    vector<int> group(n);
    for (int i = 0; i < n; i++) {
        group[i] = i;
    }
    for (int i = 0; i < n; i++) {
        if (group[i] == i) {
            int x = i;
            while (p[x] != i) {
                ans += abs(p[x] - x);
                x = p[x];
                group[x] = i;
            }
            ans += abs(p[x] - x);
        }
    }
    vector<int> end(n, -1);
    for (int i = 0; i < n; i++) {
        end[group[i]] = max(end[group[i]], i);
    }
    int min_group = 0;
    for (int i = 0; i < n; i++) {
        if (min_group == -1) {
            ans += 2;
            min_group = i;
        } else {
            end[min_group] = max(end[min_group], end[group[i]]);
            group[i] = min_group;
        }
        if (i == end[min_group]) {
            min_group = -1;
        }
    }
    for (int i = 0; i < s && p[i] == i; i++) {
        ans -= 2;
    }
    for (int i = n - 1; i > s && p[i] == i; i--) {
        ans -= 2;
    }
	return ans;
}

Subtask #1
12.0 / 12.0

#	결과	메모리	Grader output
1	Correct	2020 KB	Output is correct
2	Correct	2020 KB	Output is correct
3	Correct	2020 KB	Output is correct
4	Correct	2020 KB	Output is correct
5	Correct	2020 KB	Output is correct
6	Correct	2020 KB	Output is correct
7	Correct	2020 KB	Output is correct
8	Correct	2020 KB	Output is correct
9	Correct	2020 KB	Output is correct
10	Correct	2020 KB	Output is correct
11	Correct	2020 KB	Output is correct
12	Correct	2020 KB	Output is correct
13	Correct	2020 KB	Output is correct
14	Correct	2020 KB	Output is correct
15	Correct	2020 KB	Output is correct
16	Correct	2020 KB	Output is correct
17	Correct	2020 KB	Output is correct
18	Correct	2020 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	메모리	Grader output
1	Correct	2020 KB	Output is correct
2	Correct	2020 KB	Output is correct
3	Correct	2020 KB	Output is correct
4	Correct	2020 KB	Output is correct
5	Correct	2020 KB	Output is correct
6	Correct	2020 KB	Output is correct
7	Correct	2020 KB	Output is correct
8	Correct	2020 KB	Output is correct
9	Correct	2020 KB	Output is correct
10	Correct	2020 KB	Output is correct
11	Correct	2020 KB	Output is correct
12	Correct	2020 KB	Output is correct
13	Correct	2020 KB	Output is correct
14	Correct	2020 KB	Output is correct
15	Correct	2020 KB	Output is correct
16	Correct	2020 KB	Output is correct
17	Correct	2020 KB	Output is correct
18	Correct	2020 KB	Output is correct
19	Correct	2020 KB	Output is correct
20	Correct	2020 KB	Output is correct
21	Correct	2020 KB	Output is correct
22	Correct	2020 KB	Output is correct
23	Correct	2020 KB	Output is correct
24	Correct	2020 KB	Output is correct
25	Correct	2020 KB	Output is correct
26	Correct	2020 KB	Output is correct
27	Correct	2020 KB	Output is correct
28	Correct	2020 KB	Output is correct
29	Correct	2020 KB	Output is correct

Subtask #3
28.0 / 28.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2020 KB	Output is correct
2	Correct	0 ms	2020 KB	Output is correct
3	Correct	0 ms	2020 KB	Output is correct
4	Correct	0 ms	2020 KB	Output is correct
5	Correct	0 ms	2020 KB	Output is correct
6	Correct	0 ms	2020 KB	Output is correct
7	Correct	0 ms	2020 KB	Output is correct
8	Correct	0 ms	2020 KB	Output is correct
9	Correct	0 ms	2020 KB	Output is correct
10	Correct	0 ms	2020 KB	Output is correct
11	Correct	0 ms	2020 KB	Output is correct
12	Correct	0 ms	2020 KB	Output is correct
13	Correct	0 ms	2020 KB	Output is correct
14	Correct	0 ms	2020 KB	Output is correct
15	Correct	0 ms	2020 KB	Output is correct
16	Correct	0 ms	2020 KB	Output is correct
17	Correct	0 ms	2020 KB	Output is correct
18	Correct	0 ms	2020 KB	Output is correct
19	Correct	0 ms	2020 KB	Output is correct
20	Correct	0 ms	2020 KB	Output is correct
21	Correct	0 ms	2020 KB	Output is correct
22	Correct	0 ms	2020 KB	Output is correct
23	Correct	0 ms	2020 KB	Output is correct
24	Correct	0 ms	2020 KB	Output is correct
25	Correct	0 ms	2020 KB	Output is correct
26	Correct	0 ms	2020 KB	Output is correct
27	Correct	0 ms	2020 KB	Output is correct
28	Correct	0 ms	2020 KB	Output is correct
29	Correct	0 ms	2020 KB	Output is correct
30	Correct	274 ms	17652 KB	Output is correct
31	Correct	277 ms	17652 KB	Output is correct
32	Correct	148 ms	17652 KB	Output is correct
33	Correct	178 ms	17652 KB	Output is correct
34	Correct	150 ms	17652 KB	Output is correct
35	Correct	163 ms	17652 KB	Output is correct
36	Correct	175 ms	17652 KB	Output is correct
37	Correct	157 ms	17652 KB	Output is correct
38	Correct	160 ms	17652 KB	Output is correct
39	Correct	179 ms	17652 KB	Output is correct
40	Correct	192 ms	17652 KB	Output is correct
41	Correct	205 ms	17652 KB	Output is correct
42	Correct	202 ms	17652 KB	Output is correct
43	Correct	173 ms	17652 KB	Output is correct

Subtask #4
0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	0 ms	2020 KB	3rd lines differ - on the 1st token, expected: '3304', found: '2744'
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	2020 KB	Output is correct
2	Correct	0 ms	2020 KB	Output is correct
3	Correct	0 ms	2020 KB	Output is correct
4	Correct	0 ms	2020 KB	Output is correct
5	Correct	0 ms	2020 KB	Output is correct
6	Correct	0 ms	2020 KB	Output is correct
7	Correct	0 ms	2020 KB	Output is correct
8	Correct	0 ms	2020 KB	Output is correct
9	Correct	0 ms	2020 KB	Output is correct
10	Correct	0 ms	2020 KB	Output is correct
11	Correct	0 ms	2020 KB	Output is correct
12	Correct	0 ms	2020 KB	Output is correct
13	Correct	0 ms	2020 KB	Output is correct
14	Correct	0 ms	2020 KB	Output is correct
15	Correct	0 ms	2020 KB	Output is correct
16	Correct	0 ms	2020 KB	Output is correct
17	Correct	0 ms	2020 KB	Output is correct
18	Correct	0 ms	2020 KB	Output is correct
19	Correct	0 ms	2020 KB	Output is correct
20	Correct	0 ms	2020 KB	Output is correct
21	Correct	0 ms	2020 KB	Output is correct
22	Correct	0 ms	2020 KB	Output is correct
23	Correct	0 ms	2020 KB	Output is correct
24	Correct	0 ms	2020 KB	Output is correct
25	Correct	0 ms	2020 KB	Output is correct
26	Correct	0 ms	2020 KB	Output is correct
27	Correct	0 ms	2020 KB	Output is correct
28	Correct	0 ms	2020 KB	Output is correct
29	Correct	0 ms	2020 KB	Output is correct
30	Correct	274 ms	17652 KB	Output is correct
31	Correct	277 ms	17652 KB	Output is correct
32	Correct	148 ms	17652 KB	Output is correct
33	Correct	178 ms	17652 KB	Output is correct
34	Correct	150 ms	17652 KB	Output is correct
35	Correct	163 ms	17652 KB	Output is correct
36	Correct	175 ms	17652 KB	Output is correct
37	Correct	157 ms	17652 KB	Output is correct
38	Correct	160 ms	17652 KB	Output is correct
39	Correct	179 ms	17652 KB	Output is correct
40	Correct	192 ms	17652 KB	Output is correct
41	Correct	205 ms	17652 KB	Output is correct
42	Correct	202 ms	17652 KB	Output is correct
43	Correct	173 ms	17652 KB	Output is correct
44	Incorrect	0 ms	2020 KB	3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45	Halted	0 ms	0 KB	-

답안 #40284

Compilation message

Subtask #1 12.0 / 12.0

Subtask #2 10.0 / 10.0

Subtask #3 28.0 / 28.0

Subtask #4 0 / 20.0

Subtask #5 0 / 30.0

Subtask #1
12.0 / 12.0

Subtask #2
10.0 / 10.0

Subtask #3
28.0 / 28.0

Subtask #4
0 / 20.0

Subtask #5
0 / 30.0