Submission #596684

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
596684	2022-07-15T01:17:16 Z	farhan132	Ancient Books (IOI17_books)	C++17	50 / 100	161 ms	39900 KB

books

#include "books.h"
#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
typedef pair<ll , ll> ii;
 
#define ff first
#define ss second
#define pb push_back
#define in insert

long long minimum_walk(std::vector<int> p, int s) {

	 ll n = p.size();

	 vector < ll > vis(n, 0);
	 ll ans = 0;
	 while(n > 0 && p[n-1] == n-1){
	 	n--;
	 }
	 if(n == 0) return 0;
	 ll l = 0;
	 while(p[l] == l) l++;
	 ll r = n - 1; ll mx = l;

	 if(s < l){
	 	ans += 2*abs(l - s); l = s;
	 }
	 if(s > r){
	 	ans += 2*abs(r - s); r = s;
	 }
	 vector < ll > P(n + 2, -1), dist(n + 2, 0);
	 vector < ll > st; st.pb(l); P[l] = l; dist[l] = l;
	 for(ll i = l; i <= r; i++){
	 	if(vis[i]) continue;
	 	ll c = i; 
	 	ll _mx = c;
	 	while(!vis[c]){
	 		vis[c] = 1;
	 		_mx = max(_mx, c);
	 		ans += abs(p[c] - c); c = p[c];
	 	}
	 	if(mx < i){
	 		P[i] = i;
	 		dist[i] = _mx;
	 		st.pb(i);
	 	}else{
	 		if(i != l) P[i] = P[i - 1];
	 		dist[P[i]] = max(dist[P[i]], _mx);
	 	}
	 	mx = max(mx, _mx);
	 }
	 ans += 2*st.size() - 2;
	 for(auto L : st){
	 	if(L <= s && s <= dist[L]){
	 		ans += 2 * min(abs(s - L), abs(s - dist[L]));
	 	}
	 }
	 
	return ans;
}

Subtask #1

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 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	1 ms	212 KB	Output is correct
6	Correct	1 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	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	212 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

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 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	1 ms	212 KB	Output is correct
6	Correct	1 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	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	212 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	0 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	340 KB	Output is correct
23	Correct	1 ms	340 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

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 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	1 ms	212 KB	Output is correct
6	Correct	1 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	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	212 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	0 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	340 KB	Output is correct
23	Correct	1 ms	340 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	146 ms	31600 KB	Output is correct
31	Correct	161 ms	31612 KB	Output is correct
32	Correct	89 ms	15848 KB	Output is correct
33	Correct	139 ms	39900 KB	Output is correct
34	Correct	110 ms	39864 KB	Output is correct
35	Correct	128 ms	35804 KB	Output is correct
36	Correct	108 ms	33760 KB	Output is correct
37	Correct	94 ms	31692 KB	Output is correct
38	Correct	129 ms	31596 KB	Output is correct
39	Correct	110 ms	31596 KB	Output is correct
40	Correct	103 ms	31604 KB	Output is correct
41	Correct	109 ms	31604 KB	Output is correct
42	Correct	109 ms	31612 KB	Output is correct
43	Correct	137 ms	31596 KB	Output is correct

Subtask #4

0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	1 ms	212 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	0 ms	212 KB	Output is correct
2	Correct	1 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	1 ms	212 KB	Output is correct
6	Correct	1 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	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	212 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	0 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	340 KB	Output is correct
23	Correct	1 ms	340 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	146 ms	31600 KB	Output is correct
31	Correct	161 ms	31612 KB	Output is correct
32	Correct	89 ms	15848 KB	Output is correct
33	Correct	139 ms	39900 KB	Output is correct
34	Correct	110 ms	39864 KB	Output is correct
35	Correct	128 ms	35804 KB	Output is correct
36	Correct	108 ms	33760 KB	Output is correct
37	Correct	94 ms	31692 KB	Output is correct
38	Correct	129 ms	31596 KB	Output is correct
39	Correct	110 ms	31596 KB	Output is correct
40	Correct	103 ms	31604 KB	Output is correct
41	Correct	109 ms	31604 KB	Output is correct
42	Correct	109 ms	31612 KB	Output is correct
43	Correct	137 ms	31596 KB	Output is correct
44	Incorrect	1 ms	212 KB	3rd lines differ - on the 1st token, expected: '3304', found: '3594'
45	Halted	0 ms	0 KB	-