Submission #299747

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
299747	2020-09-15T14:50:06 Z	errorgorn	Ancient Books (IOI17_books)	C++14	50 / 100	186 ms	16120 KB

books

#include "books.h"

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

#define ll long long
#define ii pair<int,int>
#define fi first
#define se second

#define rep(x,s,e) for (auto x=(s)-((s)>(e));x!=(e)-((s)>(e));((s)<(e)?x++:x--))
#define all(x) (x).begin(),(x).end()
#define sz(x) (int) (x).size()

int n;
vector<int> arr;

int fwd[1000005];

long long minimum_walk(std::vector<int> p, int s) {
	n=sz(p);
	arr=p;
	
	rep(x,0,n){
		if (x<arr[x]) fwd[x]++,fwd[arr[x]]--;
	}
	
	rep(x,0,n) fwd[x+1]+=fwd[x];
	
	int l=0,r=n-1;
	while (l<s && fwd[l]==0) l++;
	while (s<=r && fwd[r]==0) r--;
	
	ll ans=0;
	rep(x,l,r+1){
		ans+=max(fwd[x],1);
	}
	
	return ans*2;
}

Subtask #1
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	256 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	256 KB	Output is correct
4	Correct	1 ms	256 KB	Output is correct
5	Correct	1 ms	256 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	1 ms	256 KB	Output is correct
8	Correct	1 ms	256 KB	Output is correct
9	Correct	1 ms	256 KB	Output is correct
10	Correct	0 ms	256 KB	Output is correct
11	Correct	1 ms	256 KB	Output is correct
12	Correct	1 ms	256 KB	Output is correct
13	Correct	1 ms	256 KB	Output is correct
14	Correct	1 ms	256 KB	Output is correct
15	Correct	1 ms	256 KB	Output is correct
16	Correct	1 ms	256 KB	Output is correct
17	Correct	1 ms	256 KB	Output is correct
18	Correct	1 ms	256 KB	Output is correct

Subtask #2
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	256 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	256 KB	Output is correct
4	Correct	1 ms	256 KB	Output is correct
5	Correct	1 ms	256 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	1 ms	256 KB	Output is correct
8	Correct	1 ms	256 KB	Output is correct
9	Correct	1 ms	256 KB	Output is correct
10	Correct	0 ms	256 KB	Output is correct
11	Correct	1 ms	256 KB	Output is correct
12	Correct	1 ms	256 KB	Output is correct
13	Correct	1 ms	256 KB	Output is correct
14	Correct	1 ms	256 KB	Output is correct
15	Correct	1 ms	256 KB	Output is correct
16	Correct	1 ms	256 KB	Output is correct
17	Correct	1 ms	256 KB	Output is correct
18	Correct	1 ms	256 KB	Output is correct
19	Correct	1 ms	384 KB	Output is correct
20	Correct	1 ms	384 KB	Output is correct
21	Correct	1 ms	384 KB	Output is correct
22	Correct	1 ms	384 KB	Output is correct
23	Correct	1 ms	384 KB	Output is correct
24	Correct	1 ms	384 KB	Output is correct
25	Correct	1 ms	384 KB	Output is correct
26	Correct	1 ms	384 KB	Output is correct
27	Correct	1 ms	384 KB	Output is correct
28	Correct	1 ms	384 KB	Output is correct
29	Correct	1 ms	384 KB	Output is correct

Subtask #3
28.0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	256 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	256 KB	Output is correct
4	Correct	1 ms	256 KB	Output is correct
5	Correct	1 ms	256 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	1 ms	256 KB	Output is correct
8	Correct	1 ms	256 KB	Output is correct
9	Correct	1 ms	256 KB	Output is correct
10	Correct	0 ms	256 KB	Output is correct
11	Correct	1 ms	256 KB	Output is correct
12	Correct	1 ms	256 KB	Output is correct
13	Correct	1 ms	256 KB	Output is correct
14	Correct	1 ms	256 KB	Output is correct
15	Correct	1 ms	256 KB	Output is correct
16	Correct	1 ms	256 KB	Output is correct
17	Correct	1 ms	256 KB	Output is correct
18	Correct	1 ms	256 KB	Output is correct
19	Correct	1 ms	384 KB	Output is correct
20	Correct	1 ms	384 KB	Output is correct
21	Correct	1 ms	384 KB	Output is correct
22	Correct	1 ms	384 KB	Output is correct
23	Correct	1 ms	384 KB	Output is correct
24	Correct	1 ms	384 KB	Output is correct
25	Correct	1 ms	384 KB	Output is correct
26	Correct	1 ms	384 KB	Output is correct
27	Correct	1 ms	384 KB	Output is correct
28	Correct	1 ms	384 KB	Output is correct
29	Correct	1 ms	384 KB	Output is correct
30	Correct	186 ms	15992 KB	Output is correct
31	Correct	173 ms	15992 KB	Output is correct
32	Correct	139 ms	16072 KB	Output is correct
33	Correct	151 ms	15992 KB	Output is correct
34	Correct	145 ms	16120 KB	Output is correct
35	Correct	145 ms	15992 KB	Output is correct
36	Correct	148 ms	15992 KB	Output is correct
37	Correct	151 ms	15992 KB	Output is correct
38	Correct	156 ms	15992 KB	Output is correct
39	Correct	159 ms	15992 KB	Output is correct
40	Correct	157 ms	15992 KB	Output is correct
41	Correct	168 ms	15992 KB	Output is correct
42	Correct	170 ms	15992 KB	Output is correct
43	Correct	151 ms	16120 KB	Output is correct

Subtask #4
0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	1 ms	384 KB	3rd lines differ - on the 1st token, expected: '3304', found: '2744'
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	256 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	256 KB	Output is correct
4	Correct	1 ms	256 KB	Output is correct
5	Correct	1 ms	256 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	1 ms	256 KB	Output is correct
8	Correct	1 ms	256 KB	Output is correct
9	Correct	1 ms	256 KB	Output is correct
10	Correct	0 ms	256 KB	Output is correct
11	Correct	1 ms	256 KB	Output is correct
12	Correct	1 ms	256 KB	Output is correct
13	Correct	1 ms	256 KB	Output is correct
14	Correct	1 ms	256 KB	Output is correct
15	Correct	1 ms	256 KB	Output is correct
16	Correct	1 ms	256 KB	Output is correct
17	Correct	1 ms	256 KB	Output is correct
18	Correct	1 ms	256 KB	Output is correct
19	Correct	1 ms	384 KB	Output is correct
20	Correct	1 ms	384 KB	Output is correct
21	Correct	1 ms	384 KB	Output is correct
22	Correct	1 ms	384 KB	Output is correct
23	Correct	1 ms	384 KB	Output is correct
24	Correct	1 ms	384 KB	Output is correct
25	Correct	1 ms	384 KB	Output is correct
26	Correct	1 ms	384 KB	Output is correct
27	Correct	1 ms	384 KB	Output is correct
28	Correct	1 ms	384 KB	Output is correct
29	Correct	1 ms	384 KB	Output is correct
30	Correct	186 ms	15992 KB	Output is correct
31	Correct	173 ms	15992 KB	Output is correct
32	Correct	139 ms	16072 KB	Output is correct
33	Correct	151 ms	15992 KB	Output is correct
34	Correct	145 ms	16120 KB	Output is correct
35	Correct	145 ms	15992 KB	Output is correct
36	Correct	148 ms	15992 KB	Output is correct
37	Correct	151 ms	15992 KB	Output is correct
38	Correct	156 ms	15992 KB	Output is correct
39	Correct	159 ms	15992 KB	Output is correct
40	Correct	157 ms	15992 KB	Output is correct
41	Correct	168 ms	15992 KB	Output is correct
42	Correct	170 ms	15992 KB	Output is correct
43	Correct	151 ms	16120 KB	Output is correct
44	Incorrect	1 ms	384 KB	3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45	Halted	0 ms	0 KB	-

Submission #299747

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