Submission #390654

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
390654	2021-04-16T13:08:34 Z	alireza_kaviani	Ancient Books (IOI17_books)	C++11	50 / 100	169 ms	16580 KB

books

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

typedef long long ll;

const int MAXN = 1e6 + 10;

int n;
ll ans , ps[MAXN];

ll minimum_walk(vector<int> p, int s) {
	n = p.size();
	for(int i = 0 ; i < n ; i++){
		ps[min(p[i] , i)]++;
		ps[max(p[i] , i)]--;
	}
	partial_sum(ps , ps + MAXN , ps);
	int l = 0 , r = n;
	while(l < s && ps[l] == 0)	l++;
	while(s <= r && ps[r] == 0)	r--;
	int x = p[s] , mn = s , mx = s , res = s;
	while(x != s){
		mn = min(mn , x);
		mx = max(mx , x);
		x = p[x];
	}
	for(int i = 0 ; i < mn ; i++){
		if(ps[i] == 0)	res = min(res , mn - i - 1);
	}
	for(int i = mx ; i < n ; i++){
		if(ps[i] == 0)	res = min(res , i - mx);
	}
	for(int i = l ; i <= r ; i++){
		ans += max(2ll , ps[i]);
	}
	return ans + res * 2;
}

Subtask #1
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	8092 KB	Output is correct
2	Correct	6 ms	8004 KB	Output is correct
3	Correct	6 ms	8112 KB	Output is correct
4	Correct	6 ms	8012 KB	Output is correct
5	Correct	6 ms	8012 KB	Output is correct
6	Correct	6 ms	8012 KB	Output is correct
7	Correct	6 ms	8012 KB	Output is correct
8	Correct	6 ms	8012 KB	Output is correct
9	Correct	6 ms	8012 KB	Output is correct
10	Correct	6 ms	8012 KB	Output is correct
11	Correct	6 ms	8012 KB	Output is correct
12	Correct	6 ms	8012 KB	Output is correct
13	Correct	6 ms	8012 KB	Output is correct
14	Correct	6 ms	8012 KB	Output is correct
15	Correct	6 ms	8012 KB	Output is correct
16	Correct	6 ms	8012 KB	Output is correct
17	Correct	6 ms	8012 KB	Output is correct
18	Correct	6 ms	8012 KB	Output is correct

Subtask #2
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	8092 KB	Output is correct
2	Correct	6 ms	8004 KB	Output is correct
3	Correct	6 ms	8112 KB	Output is correct
4	Correct	6 ms	8012 KB	Output is correct
5	Correct	6 ms	8012 KB	Output is correct
6	Correct	6 ms	8012 KB	Output is correct
7	Correct	6 ms	8012 KB	Output is correct
8	Correct	6 ms	8012 KB	Output is correct
9	Correct	6 ms	8012 KB	Output is correct
10	Correct	6 ms	8012 KB	Output is correct
11	Correct	6 ms	8012 KB	Output is correct
12	Correct	6 ms	8012 KB	Output is correct
13	Correct	6 ms	8012 KB	Output is correct
14	Correct	6 ms	8012 KB	Output is correct
15	Correct	6 ms	8012 KB	Output is correct
16	Correct	6 ms	8012 KB	Output is correct
17	Correct	6 ms	8012 KB	Output is correct
18	Correct	6 ms	8012 KB	Output is correct
19	Correct	7 ms	8040 KB	Output is correct
20	Correct	6 ms	8012 KB	Output is correct
21	Correct	6 ms	8012 KB	Output is correct
22	Correct	7 ms	8032 KB	Output is correct
23	Correct	7 ms	8124 KB	Output is correct
24	Correct	8 ms	8012 KB	Output is correct
25	Correct	8 ms	8076 KB	Output is correct
26	Correct	6 ms	8012 KB	Output is correct
27	Correct	6 ms	8012 KB	Output is correct
28	Correct	6 ms	8016 KB	Output is correct
29	Correct	6 ms	8012 KB	Output is correct

Subtask #3
28.0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	8092 KB	Output is correct
2	Correct	6 ms	8004 KB	Output is correct
3	Correct	6 ms	8112 KB	Output is correct
4	Correct	6 ms	8012 KB	Output is correct
5	Correct	6 ms	8012 KB	Output is correct
6	Correct	6 ms	8012 KB	Output is correct
7	Correct	6 ms	8012 KB	Output is correct
8	Correct	6 ms	8012 KB	Output is correct
9	Correct	6 ms	8012 KB	Output is correct
10	Correct	6 ms	8012 KB	Output is correct
11	Correct	6 ms	8012 KB	Output is correct
12	Correct	6 ms	8012 KB	Output is correct
13	Correct	6 ms	8012 KB	Output is correct
14	Correct	6 ms	8012 KB	Output is correct
15	Correct	6 ms	8012 KB	Output is correct
16	Correct	6 ms	8012 KB	Output is correct
17	Correct	6 ms	8012 KB	Output is correct
18	Correct	6 ms	8012 KB	Output is correct
19	Correct	7 ms	8040 KB	Output is correct
20	Correct	6 ms	8012 KB	Output is correct
21	Correct	6 ms	8012 KB	Output is correct
22	Correct	7 ms	8032 KB	Output is correct
23	Correct	7 ms	8124 KB	Output is correct
24	Correct	8 ms	8012 KB	Output is correct
25	Correct	8 ms	8076 KB	Output is correct
26	Correct	6 ms	8012 KB	Output is correct
27	Correct	6 ms	8012 KB	Output is correct
28	Correct	6 ms	8016 KB	Output is correct
29	Correct	6 ms	8012 KB	Output is correct
30	Correct	169 ms	15872 KB	Output is correct
31	Correct	163 ms	16580 KB	Output is correct
32	Correct	146 ms	16508 KB	Output is correct
33	Correct	148 ms	16520 KB	Output is correct
34	Correct	153 ms	16512 KB	Output is correct
35	Correct	149 ms	16472 KB	Output is correct
36	Correct	147 ms	16520 KB	Output is correct
37	Correct	146 ms	16496 KB	Output is correct
38	Correct	149 ms	16504 KB	Output is correct
39	Correct	160 ms	16500 KB	Output is correct
40	Correct	146 ms	16516 KB	Output is correct
41	Correct	154 ms	16516 KB	Output is correct
42	Correct	147 ms	16508 KB	Output is correct
43	Correct	145 ms	16468 KB	Output is correct

Subtask #4
0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	6 ms	8012 KB	3rd lines differ - on the 1st token, expected: '3304', found: '3594'
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	8092 KB	Output is correct
2	Correct	6 ms	8004 KB	Output is correct
3	Correct	6 ms	8112 KB	Output is correct
4	Correct	6 ms	8012 KB	Output is correct
5	Correct	6 ms	8012 KB	Output is correct
6	Correct	6 ms	8012 KB	Output is correct
7	Correct	6 ms	8012 KB	Output is correct
8	Correct	6 ms	8012 KB	Output is correct
9	Correct	6 ms	8012 KB	Output is correct
10	Correct	6 ms	8012 KB	Output is correct
11	Correct	6 ms	8012 KB	Output is correct
12	Correct	6 ms	8012 KB	Output is correct
13	Correct	6 ms	8012 KB	Output is correct
14	Correct	6 ms	8012 KB	Output is correct
15	Correct	6 ms	8012 KB	Output is correct
16	Correct	6 ms	8012 KB	Output is correct
17	Correct	6 ms	8012 KB	Output is correct
18	Correct	6 ms	8012 KB	Output is correct
19	Correct	7 ms	8040 KB	Output is correct
20	Correct	6 ms	8012 KB	Output is correct
21	Correct	6 ms	8012 KB	Output is correct
22	Correct	7 ms	8032 KB	Output is correct
23	Correct	7 ms	8124 KB	Output is correct
24	Correct	8 ms	8012 KB	Output is correct
25	Correct	8 ms	8076 KB	Output is correct
26	Correct	6 ms	8012 KB	Output is correct
27	Correct	6 ms	8012 KB	Output is correct
28	Correct	6 ms	8016 KB	Output is correct
29	Correct	6 ms	8012 KB	Output is correct
30	Correct	169 ms	15872 KB	Output is correct
31	Correct	163 ms	16580 KB	Output is correct
32	Correct	146 ms	16508 KB	Output is correct
33	Correct	148 ms	16520 KB	Output is correct
34	Correct	153 ms	16512 KB	Output is correct
35	Correct	149 ms	16472 KB	Output is correct
36	Correct	147 ms	16520 KB	Output is correct
37	Correct	146 ms	16496 KB	Output is correct
38	Correct	149 ms	16504 KB	Output is correct
39	Correct	160 ms	16500 KB	Output is correct
40	Correct	146 ms	16516 KB	Output is correct
41	Correct	154 ms	16516 KB	Output is correct
42	Correct	147 ms	16508 KB	Output is correct
43	Correct	145 ms	16468 KB	Output is correct
44	Incorrect	6 ms	8012 KB	3rd lines differ - on the 1st token, expected: '3304', found: '3594'
45	Halted	0 ms	0 KB	-

Submission #390654

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