Submission #72694

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
72694	2018-08-26T15:24:23 Z	mhnd	Ancient Books (IOI17_books)	C++14	50 / 100	218 ms	8468 KB

books

#include "books.h"
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef unsigned long long ull;
const int N = 2e5+50;
const int oo = 1e9;
const int mod = 1e9+7;

ll minimum_walk(vector<int> p, int s) {
	ll ans = 0;
	int mx=-1;
	for(int i=0;i<p.size();i++){
		ans += abs(i-p[i]);
		mx = max(mx,p[i]);
		if(mx==i)ans+=2;
	}
	for(int i=0;i<s;i++){
		if(p[i]!=i)break;
		ans-=2;
	}
	for(int i=p.size()-1;i>s;i--){
		if(p[i]!=i)break;
		ans-=2;
	}
	return ans - 2 + 2*s;
}

Compilation message

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

Subtask #1

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	3 ms	376 KB	Output is correct
5	Correct	3 ms	436 KB	Output is correct
6	Correct	2 ms	492 KB	Output is correct
7	Correct	2 ms	568 KB	Output is correct
8	Correct	2 ms	612 KB	Output is correct
9	Correct	2 ms	612 KB	Output is correct
10	Correct	2 ms	612 KB	Output is correct
11	Correct	2 ms	612 KB	Output is correct
12	Correct	2 ms	612 KB	Output is correct
13	Correct	2 ms	612 KB	Output is correct
14	Correct	2 ms	612 KB	Output is correct
15	Correct	2 ms	612 KB	Output is correct
16	Correct	2 ms	612 KB	Output is correct
17	Correct	3 ms	612 KB	Output is correct
18	Correct	2 ms	612 KB	Output is correct

Subtask #2

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	3 ms	376 KB	Output is correct
5	Correct	3 ms	436 KB	Output is correct
6	Correct	2 ms	492 KB	Output is correct
7	Correct	2 ms	568 KB	Output is correct
8	Correct	2 ms	612 KB	Output is correct
9	Correct	2 ms	612 KB	Output is correct
10	Correct	2 ms	612 KB	Output is correct
11	Correct	2 ms	612 KB	Output is correct
12	Correct	2 ms	612 KB	Output is correct
13	Correct	2 ms	612 KB	Output is correct
14	Correct	2 ms	612 KB	Output is correct
15	Correct	2 ms	612 KB	Output is correct
16	Correct	2 ms	612 KB	Output is correct
17	Correct	3 ms	612 KB	Output is correct
18	Correct	2 ms	612 KB	Output is correct
19	Correct	3 ms	612 KB	Output is correct
20	Correct	2 ms	612 KB	Output is correct
21	Correct	3 ms	612 KB	Output is correct
22	Correct	2 ms	612 KB	Output is correct
23	Correct	2 ms	612 KB	Output is correct
24	Correct	2 ms	612 KB	Output is correct
25	Correct	2 ms	612 KB	Output is correct
26	Correct	2 ms	612 KB	Output is correct
27	Correct	2 ms	612 KB	Output is correct
28	Correct	2 ms	612 KB	Output is correct
29	Correct	2 ms	612 KB	Output is correct

Subtask #3

28.0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	3 ms	376 KB	Output is correct
5	Correct	3 ms	436 KB	Output is correct
6	Correct	2 ms	492 KB	Output is correct
7	Correct	2 ms	568 KB	Output is correct
8	Correct	2 ms	612 KB	Output is correct
9	Correct	2 ms	612 KB	Output is correct
10	Correct	2 ms	612 KB	Output is correct
11	Correct	2 ms	612 KB	Output is correct
12	Correct	2 ms	612 KB	Output is correct
13	Correct	2 ms	612 KB	Output is correct
14	Correct	2 ms	612 KB	Output is correct
15	Correct	2 ms	612 KB	Output is correct
16	Correct	2 ms	612 KB	Output is correct
17	Correct	3 ms	612 KB	Output is correct
18	Correct	2 ms	612 KB	Output is correct
19	Correct	3 ms	612 KB	Output is correct
20	Correct	2 ms	612 KB	Output is correct
21	Correct	3 ms	612 KB	Output is correct
22	Correct	2 ms	612 KB	Output is correct
23	Correct	2 ms	612 KB	Output is correct
24	Correct	2 ms	612 KB	Output is correct
25	Correct	2 ms	612 KB	Output is correct
26	Correct	2 ms	612 KB	Output is correct
27	Correct	2 ms	612 KB	Output is correct
28	Correct	2 ms	612 KB	Output is correct
29	Correct	2 ms	612 KB	Output is correct
30	Correct	165 ms	8444 KB	Output is correct
31	Correct	167 ms	8444 KB	Output is correct
32	Correct	141 ms	8444 KB	Output is correct
33	Correct	134 ms	8444 KB	Output is correct
34	Correct	136 ms	8444 KB	Output is correct
35	Correct	148 ms	8444 KB	Output is correct
36	Correct	146 ms	8444 KB	Output is correct
37	Correct	218 ms	8444 KB	Output is correct
38	Correct	145 ms	8444 KB	Output is correct
39	Correct	148 ms	8444 KB	Output is correct
40	Correct	161 ms	8444 KB	Output is correct
41	Correct	184 ms	8444 KB	Output is correct
42	Correct	161 ms	8468 KB	Output is correct
43	Correct	138 ms	8468 KB	Output is correct

Subtask #4

0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	2 ms	8468 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	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	3 ms	376 KB	Output is correct
5	Correct	3 ms	436 KB	Output is correct
6	Correct	2 ms	492 KB	Output is correct
7	Correct	2 ms	568 KB	Output is correct
8	Correct	2 ms	612 KB	Output is correct
9	Correct	2 ms	612 KB	Output is correct
10	Correct	2 ms	612 KB	Output is correct
11	Correct	2 ms	612 KB	Output is correct
12	Correct	2 ms	612 KB	Output is correct
13	Correct	2 ms	612 KB	Output is correct
14	Correct	2 ms	612 KB	Output is correct
15	Correct	2 ms	612 KB	Output is correct
16	Correct	2 ms	612 KB	Output is correct
17	Correct	3 ms	612 KB	Output is correct
18	Correct	2 ms	612 KB	Output is correct
19	Correct	3 ms	612 KB	Output is correct
20	Correct	2 ms	612 KB	Output is correct
21	Correct	3 ms	612 KB	Output is correct
22	Correct	2 ms	612 KB	Output is correct
23	Correct	2 ms	612 KB	Output is correct
24	Correct	2 ms	612 KB	Output is correct
25	Correct	2 ms	612 KB	Output is correct
26	Correct	2 ms	612 KB	Output is correct
27	Correct	2 ms	612 KB	Output is correct
28	Correct	2 ms	612 KB	Output is correct
29	Correct	2 ms	612 KB	Output is correct
30	Correct	165 ms	8444 KB	Output is correct
31	Correct	167 ms	8444 KB	Output is correct
32	Correct	141 ms	8444 KB	Output is correct
33	Correct	134 ms	8444 KB	Output is correct
34	Correct	136 ms	8444 KB	Output is correct
35	Correct	148 ms	8444 KB	Output is correct
36	Correct	146 ms	8444 KB	Output is correct
37	Correct	218 ms	8444 KB	Output is correct
38	Correct	145 ms	8444 KB	Output is correct
39	Correct	148 ms	8444 KB	Output is correct
40	Correct	161 ms	8444 KB	Output is correct
41	Correct	184 ms	8444 KB	Output is correct
42	Correct	161 ms	8468 KB	Output is correct
43	Correct	138 ms	8468 KB	Output is correct
44	Incorrect	2 ms	8468 KB	3rd lines differ - on the 1st token, expected: '3304', found: '3594'
45	Halted	0 ms	0 KB	-