Submission #1104918

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1104918	2024-10-24T17:28:19 Z	alexander707070	Ancient Books (IOI17_books)	C++14	50 / 100	96 ms	23800 KB

books

#include<bits/stdc++.h>
#define MAXN 1000007
using namespace std;

int n,s,p[MAXN],last,mins,maxs,pref[MAXN],curr;
bool li[MAXN];
long long ans;

void dfs(int x){
	li[x]=true;

	ans+=abs(x-p[x]);
	mins=min(mins,x);
	maxs=max(maxs,x);

	if(!li[p[x]])dfs(p[x]);
}

long long minimum_walk(vector<int> P, int S){
	n=int(P.size()); s=S+1;

	for(int i=1;i<=n;i++){
		p[i]=P[i-1]+1;
	}

	for(int i=1;i<=n;i++){
		if(!li[i]){
			if(p[i]!=i)last=i;
			mins=n; maxs=1;
			dfs(i);

			pref[mins]++; pref[maxs]--;
		}
	}

	for(int i=1;i<=n-1;i++){
		curr+=pref[i];
		if(curr==0 and last>i)ans+=2;
	}

	return ans;
}

/*int main(){

	cout<<minimum_walk({0, 2, 3, 1}, 0)<<"\n";

	return 0;
}*/

Subtask #1
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	4432 KB	Output is correct
2	Correct	1 ms	4432 KB	Output is correct
3	Correct	1 ms	4432 KB	Output is correct
4	Correct	1 ms	4432 KB	Output is correct
5	Correct	1 ms	4684 KB	Output is correct
6	Correct	1 ms	4432 KB	Output is correct
7	Correct	1 ms	4432 KB	Output is correct
8	Correct	1 ms	4432 KB	Output is correct
9	Correct	1 ms	4432 KB	Output is correct
10	Correct	1 ms	4432 KB	Output is correct
11	Correct	1 ms	4600 KB	Output is correct
12	Correct	1 ms	4432 KB	Output is correct
13	Correct	1 ms	4432 KB	Output is correct
14	Correct	1 ms	4432 KB	Output is correct
15	Correct	1 ms	4432 KB	Output is correct
16	Correct	1 ms	4432 KB	Output is correct
17	Correct	1 ms	4432 KB	Output is correct
18	Correct	1 ms	4432 KB	Output is correct

Subtask #2
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	4432 KB	Output is correct
2	Correct	1 ms	4432 KB	Output is correct
3	Correct	1 ms	4432 KB	Output is correct
4	Correct	1 ms	4432 KB	Output is correct
5	Correct	1 ms	4684 KB	Output is correct
6	Correct	1 ms	4432 KB	Output is correct
7	Correct	1 ms	4432 KB	Output is correct
8	Correct	1 ms	4432 KB	Output is correct
9	Correct	1 ms	4432 KB	Output is correct
10	Correct	1 ms	4432 KB	Output is correct
11	Correct	1 ms	4600 KB	Output is correct
12	Correct	1 ms	4432 KB	Output is correct
13	Correct	1 ms	4432 KB	Output is correct
14	Correct	1 ms	4432 KB	Output is correct
15	Correct	1 ms	4432 KB	Output is correct
16	Correct	1 ms	4432 KB	Output is correct
17	Correct	1 ms	4432 KB	Output is correct
18	Correct	1 ms	4432 KB	Output is correct
19	Correct	1 ms	4600 KB	Output is correct
20	Correct	1 ms	4432 KB	Output is correct
21	Correct	1 ms	4556 KB	Output is correct
22	Correct	1 ms	4600 KB	Output is correct
23	Correct	1 ms	4432 KB	Output is correct
24	Correct	1 ms	4432 KB	Output is correct
25	Correct	1 ms	4432 KB	Output is correct
26	Correct	1 ms	4604 KB	Output is correct
27	Correct	1 ms	4432 KB	Output is correct
28	Correct	1 ms	4432 KB	Output is correct
29	Correct	1 ms	4432 KB	Output is correct

Subtask #3
28.0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	4432 KB	Output is correct
2	Correct	1 ms	4432 KB	Output is correct
3	Correct	1 ms	4432 KB	Output is correct
4	Correct	1 ms	4432 KB	Output is correct
5	Correct	1 ms	4684 KB	Output is correct
6	Correct	1 ms	4432 KB	Output is correct
7	Correct	1 ms	4432 KB	Output is correct
8	Correct	1 ms	4432 KB	Output is correct
9	Correct	1 ms	4432 KB	Output is correct
10	Correct	1 ms	4432 KB	Output is correct
11	Correct	1 ms	4600 KB	Output is correct
12	Correct	1 ms	4432 KB	Output is correct
13	Correct	1 ms	4432 KB	Output is correct
14	Correct	1 ms	4432 KB	Output is correct
15	Correct	1 ms	4432 KB	Output is correct
16	Correct	1 ms	4432 KB	Output is correct
17	Correct	1 ms	4432 KB	Output is correct
18	Correct	1 ms	4432 KB	Output is correct
19	Correct	1 ms	4600 KB	Output is correct
20	Correct	1 ms	4432 KB	Output is correct
21	Correct	1 ms	4556 KB	Output is correct
22	Correct	1 ms	4600 KB	Output is correct
23	Correct	1 ms	4432 KB	Output is correct
24	Correct	1 ms	4432 KB	Output is correct
25	Correct	1 ms	4432 KB	Output is correct
26	Correct	1 ms	4604 KB	Output is correct
27	Correct	1 ms	4432 KB	Output is correct
28	Correct	1 ms	4432 KB	Output is correct
29	Correct	1 ms	4432 KB	Output is correct
30	Correct	95 ms	15624 KB	Output is correct
31	Correct	88 ms	20472 KB	Output is correct
32	Correct	74 ms	23668 KB	Output is correct
33	Correct	77 ms	23628 KB	Output is correct
34	Correct	77 ms	23624 KB	Output is correct
35	Correct	79 ms	23624 KB	Output is correct
36	Correct	76 ms	23800 KB	Output is correct
37	Correct	73 ms	23624 KB	Output is correct
38	Correct	78 ms	23624 KB	Output is correct
39	Correct	72 ms	23636 KB	Output is correct
40	Correct	77 ms	23624 KB	Output is correct
41	Correct	93 ms	22600 KB	Output is correct
42	Correct	96 ms	23624 KB	Output is correct
43	Correct	78 ms	23668 KB	Output is correct

Subtask #4
0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	1 ms	4432 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	4432 KB	Output is correct
2	Correct	1 ms	4432 KB	Output is correct
3	Correct	1 ms	4432 KB	Output is correct
4	Correct	1 ms	4432 KB	Output is correct
5	Correct	1 ms	4684 KB	Output is correct
6	Correct	1 ms	4432 KB	Output is correct
7	Correct	1 ms	4432 KB	Output is correct
8	Correct	1 ms	4432 KB	Output is correct
9	Correct	1 ms	4432 KB	Output is correct
10	Correct	1 ms	4432 KB	Output is correct
11	Correct	1 ms	4600 KB	Output is correct
12	Correct	1 ms	4432 KB	Output is correct
13	Correct	1 ms	4432 KB	Output is correct
14	Correct	1 ms	4432 KB	Output is correct
15	Correct	1 ms	4432 KB	Output is correct
16	Correct	1 ms	4432 KB	Output is correct
17	Correct	1 ms	4432 KB	Output is correct
18	Correct	1 ms	4432 KB	Output is correct
19	Correct	1 ms	4600 KB	Output is correct
20	Correct	1 ms	4432 KB	Output is correct
21	Correct	1 ms	4556 KB	Output is correct
22	Correct	1 ms	4600 KB	Output is correct
23	Correct	1 ms	4432 KB	Output is correct
24	Correct	1 ms	4432 KB	Output is correct
25	Correct	1 ms	4432 KB	Output is correct
26	Correct	1 ms	4604 KB	Output is correct
27	Correct	1 ms	4432 KB	Output is correct
28	Correct	1 ms	4432 KB	Output is correct
29	Correct	1 ms	4432 KB	Output is correct
30	Correct	95 ms	15624 KB	Output is correct
31	Correct	88 ms	20472 KB	Output is correct
32	Correct	74 ms	23668 KB	Output is correct
33	Correct	77 ms	23628 KB	Output is correct
34	Correct	77 ms	23624 KB	Output is correct
35	Correct	79 ms	23624 KB	Output is correct
36	Correct	76 ms	23800 KB	Output is correct
37	Correct	73 ms	23624 KB	Output is correct
38	Correct	78 ms	23624 KB	Output is correct
39	Correct	72 ms	23636 KB	Output is correct
40	Correct	77 ms	23624 KB	Output is correct
41	Correct	93 ms	22600 KB	Output is correct
42	Correct	96 ms	23624 KB	Output is correct
43	Correct	78 ms	23668 KB	Output is correct
44	Incorrect	1 ms	4432 KB	3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45	Halted	0 ms	0 KB	-

Submission #1104918

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