Submission #71204

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
71204	2018-08-24T08:09:03 Z	Kmcode	Ancient Books (IOI17_books)	C++14	50 / 100	287 ms	22016 KB

books

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


int im1[1000002];
int im2[1000002];

long long minimum_walk(std::vector<int> p, int s) {
	for(int i=0;i<p.size();i++){
		if(i<=p[i]){
			im1[i]++;
			im1[p[i]]--;
		}
		else{
			im2[i]++;
			im2[p[i]]--;
		}
	}
	for(int i=1;i<p.size();i++){
		im1[i]+=im1[i-1];
		im2[i]+=im2[i-1];
	}
	int ava=0;
	long long int turn=0;
	for(int i=p.size()-1;i>=0;i--){
		if(im1[i]||im2[i]){
			ava=1;
		}
		int need=max(im1[i],im2[i]);
		need*=2;
		need=max(need,ava*2);
		turn+=need;
	}
	return turn;
}

Compilation message

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:10:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<p.size();i++){
              ~^~~~~~~~~
books.cpp:20:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=1;i<p.size();i++){
              ~^~~~~~~~~

Subtask #1

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	248 KB	Output is correct
2	Correct	2 ms	356 KB	Output is correct
3	Correct	3 ms	564 KB	Output is correct
4	Correct	3 ms	564 KB	Output is correct
5	Correct	3 ms	564 KB	Output is correct
6	Correct	2 ms	564 KB	Output is correct
7	Correct	3 ms	564 KB	Output is correct
8	Correct	3 ms	564 KB	Output is correct
9	Correct	3 ms	564 KB	Output is correct
10	Correct	3 ms	564 KB	Output is correct
11	Correct	2 ms	564 KB	Output is correct
12	Correct	2 ms	564 KB	Output is correct
13	Correct	2 ms	592 KB	Output is correct
14	Correct	3 ms	712 KB	Output is correct
15	Correct	4 ms	720 KB	Output is correct
16	Correct	2 ms	720 KB	Output is correct
17	Correct	2 ms	720 KB	Output is correct
18	Correct	3 ms	720 KB	Output is correct

Subtask #2

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	248 KB	Output is correct
2	Correct	2 ms	356 KB	Output is correct
3	Correct	3 ms	564 KB	Output is correct
4	Correct	3 ms	564 KB	Output is correct
5	Correct	3 ms	564 KB	Output is correct
6	Correct	2 ms	564 KB	Output is correct
7	Correct	3 ms	564 KB	Output is correct
8	Correct	3 ms	564 KB	Output is correct
9	Correct	3 ms	564 KB	Output is correct
10	Correct	3 ms	564 KB	Output is correct
11	Correct	2 ms	564 KB	Output is correct
12	Correct	2 ms	564 KB	Output is correct
13	Correct	2 ms	592 KB	Output is correct
14	Correct	3 ms	712 KB	Output is correct
15	Correct	4 ms	720 KB	Output is correct
16	Correct	2 ms	720 KB	Output is correct
17	Correct	2 ms	720 KB	Output is correct
18	Correct	3 ms	720 KB	Output is correct
19	Correct	3 ms	720 KB	Output is correct
20	Correct	2 ms	720 KB	Output is correct
21	Correct	4 ms	720 KB	Output is correct
22	Correct	2 ms	720 KB	Output is correct
23	Correct	3 ms	720 KB	Output is correct
24	Correct	3 ms	720 KB	Output is correct
25	Correct	2 ms	720 KB	Output is correct
26	Correct	3 ms	720 KB	Output is correct
27	Correct	2 ms	720 KB	Output is correct
28	Correct	4 ms	720 KB	Output is correct
29	Correct	3 ms	720 KB	Output is correct

Subtask #3

28.0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	248 KB	Output is correct
2	Correct	2 ms	356 KB	Output is correct
3	Correct	3 ms	564 KB	Output is correct
4	Correct	3 ms	564 KB	Output is correct
5	Correct	3 ms	564 KB	Output is correct
6	Correct	2 ms	564 KB	Output is correct
7	Correct	3 ms	564 KB	Output is correct
8	Correct	3 ms	564 KB	Output is correct
9	Correct	3 ms	564 KB	Output is correct
10	Correct	3 ms	564 KB	Output is correct
11	Correct	2 ms	564 KB	Output is correct
12	Correct	2 ms	564 KB	Output is correct
13	Correct	2 ms	592 KB	Output is correct
14	Correct	3 ms	712 KB	Output is correct
15	Correct	4 ms	720 KB	Output is correct
16	Correct	2 ms	720 KB	Output is correct
17	Correct	2 ms	720 KB	Output is correct
18	Correct	3 ms	720 KB	Output is correct
19	Correct	3 ms	720 KB	Output is correct
20	Correct	2 ms	720 KB	Output is correct
21	Correct	4 ms	720 KB	Output is correct
22	Correct	2 ms	720 KB	Output is correct
23	Correct	3 ms	720 KB	Output is correct
24	Correct	3 ms	720 KB	Output is correct
25	Correct	2 ms	720 KB	Output is correct
26	Correct	3 ms	720 KB	Output is correct
27	Correct	2 ms	720 KB	Output is correct
28	Correct	4 ms	720 KB	Output is correct
29	Correct	3 ms	720 KB	Output is correct
30	Correct	190 ms	16252 KB	Output is correct
31	Correct	241 ms	16252 KB	Output is correct
32	Correct	244 ms	16252 KB	Output is correct
33	Correct	178 ms	16636 KB	Output is correct
34	Correct	231 ms	20192 KB	Output is correct
35	Correct	212 ms	20192 KB	Output is correct
36	Correct	210 ms	22016 KB	Output is correct
37	Correct	203 ms	22016 KB	Output is correct
38	Correct	185 ms	22016 KB	Output is correct
39	Correct	198 ms	22016 KB	Output is correct
40	Correct	197 ms	22016 KB	Output is correct
41	Correct	287 ms	22016 KB	Output is correct
42	Correct	205 ms	22016 KB	Output is correct
43	Correct	176 ms	22016 KB	Output is correct

Subtask #4

0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	3 ms	22016 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	3 ms	248 KB	Output is correct
2	Correct	2 ms	356 KB	Output is correct
3	Correct	3 ms	564 KB	Output is correct
4	Correct	3 ms	564 KB	Output is correct
5	Correct	3 ms	564 KB	Output is correct
6	Correct	2 ms	564 KB	Output is correct
7	Correct	3 ms	564 KB	Output is correct
8	Correct	3 ms	564 KB	Output is correct
9	Correct	3 ms	564 KB	Output is correct
10	Correct	3 ms	564 KB	Output is correct
11	Correct	2 ms	564 KB	Output is correct
12	Correct	2 ms	564 KB	Output is correct
13	Correct	2 ms	592 KB	Output is correct
14	Correct	3 ms	712 KB	Output is correct
15	Correct	4 ms	720 KB	Output is correct
16	Correct	2 ms	720 KB	Output is correct
17	Correct	2 ms	720 KB	Output is correct
18	Correct	3 ms	720 KB	Output is correct
19	Correct	3 ms	720 KB	Output is correct
20	Correct	2 ms	720 KB	Output is correct
21	Correct	4 ms	720 KB	Output is correct
22	Correct	2 ms	720 KB	Output is correct
23	Correct	3 ms	720 KB	Output is correct
24	Correct	3 ms	720 KB	Output is correct
25	Correct	2 ms	720 KB	Output is correct
26	Correct	3 ms	720 KB	Output is correct
27	Correct	2 ms	720 KB	Output is correct
28	Correct	4 ms	720 KB	Output is correct
29	Correct	3 ms	720 KB	Output is correct
30	Correct	190 ms	16252 KB	Output is correct
31	Correct	241 ms	16252 KB	Output is correct
32	Correct	244 ms	16252 KB	Output is correct
33	Correct	178 ms	16636 KB	Output is correct
34	Correct	231 ms	20192 KB	Output is correct
35	Correct	212 ms	20192 KB	Output is correct
36	Correct	210 ms	22016 KB	Output is correct
37	Correct	203 ms	22016 KB	Output is correct
38	Correct	185 ms	22016 KB	Output is correct
39	Correct	198 ms	22016 KB	Output is correct
40	Correct	197 ms	22016 KB	Output is correct
41	Correct	287 ms	22016 KB	Output is correct
42	Correct	205 ms	22016 KB	Output is correct
43	Correct	176 ms	22016 KB	Output is correct
44	Incorrect	3 ms	22016 KB	3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45	Halted	0 ms	0 KB	-