Submission #72693

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
72693	2018-08-26T15:23:46 Z	mhnd	Ancient Books (IOI17_books)	C++14	50 / 100	221 ms	8444 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 + 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	248 KB	Output is correct
2	Correct	2 ms	356 KB	Output is correct
3	Correct	2 ms	440 KB	Output is correct
4	Correct	3 ms	440 KB	Output is correct
5	Correct	2 ms	488 KB	Output is correct
6	Correct	2 ms	488 KB	Output is correct
7	Correct	3 ms	488 KB	Output is correct
8	Correct	2 ms	488 KB	Output is correct
9	Correct	2 ms	524 KB	Output is correct
10	Correct	2 ms	556 KB	Output is correct
11	Correct	3 ms	556 KB	Output is correct
12	Correct	2 ms	556 KB	Output is correct
13	Correct	2 ms	556 KB	Output is correct
14	Correct	2 ms	580 KB	Output is correct
15	Correct	3 ms	580 KB	Output is correct
16	Correct	2 ms	580 KB	Output is correct
17	Correct	2 ms	580 KB	Output is correct
18	Correct	2 ms	580 KB	Output is correct

Subtask #2

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	248 KB	Output is correct
2	Correct	2 ms	356 KB	Output is correct
3	Correct	2 ms	440 KB	Output is correct
4	Correct	3 ms	440 KB	Output is correct
5	Correct	2 ms	488 KB	Output is correct
6	Correct	2 ms	488 KB	Output is correct
7	Correct	3 ms	488 KB	Output is correct
8	Correct	2 ms	488 KB	Output is correct
9	Correct	2 ms	524 KB	Output is correct
10	Correct	2 ms	556 KB	Output is correct
11	Correct	3 ms	556 KB	Output is correct
12	Correct	2 ms	556 KB	Output is correct
13	Correct	2 ms	556 KB	Output is correct
14	Correct	2 ms	580 KB	Output is correct
15	Correct	3 ms	580 KB	Output is correct
16	Correct	2 ms	580 KB	Output is correct
17	Correct	2 ms	580 KB	Output is correct
18	Correct	2 ms	580 KB	Output is correct
19	Correct	2 ms	580 KB	Output is correct
20	Correct	3 ms	592 KB	Output is correct
21	Correct	2 ms	592 KB	Output is correct
22	Correct	2 ms	592 KB	Output is correct
23	Correct	3 ms	592 KB	Output is correct
24	Correct	2 ms	592 KB	Output is correct
25	Correct	3 ms	592 KB	Output is correct
26	Correct	2 ms	592 KB	Output is correct
27	Correct	2 ms	592 KB	Output is correct
28	Correct	2 ms	592 KB	Output is correct
29	Correct	2 ms	592 KB	Output is correct

Subtask #3

28.0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	248 KB	Output is correct
2	Correct	2 ms	356 KB	Output is correct
3	Correct	2 ms	440 KB	Output is correct
4	Correct	3 ms	440 KB	Output is correct
5	Correct	2 ms	488 KB	Output is correct
6	Correct	2 ms	488 KB	Output is correct
7	Correct	3 ms	488 KB	Output is correct
8	Correct	2 ms	488 KB	Output is correct
9	Correct	2 ms	524 KB	Output is correct
10	Correct	2 ms	556 KB	Output is correct
11	Correct	3 ms	556 KB	Output is correct
12	Correct	2 ms	556 KB	Output is correct
13	Correct	2 ms	556 KB	Output is correct
14	Correct	2 ms	580 KB	Output is correct
15	Correct	3 ms	580 KB	Output is correct
16	Correct	2 ms	580 KB	Output is correct
17	Correct	2 ms	580 KB	Output is correct
18	Correct	2 ms	580 KB	Output is correct
19	Correct	2 ms	580 KB	Output is correct
20	Correct	3 ms	592 KB	Output is correct
21	Correct	2 ms	592 KB	Output is correct
22	Correct	2 ms	592 KB	Output is correct
23	Correct	3 ms	592 KB	Output is correct
24	Correct	2 ms	592 KB	Output is correct
25	Correct	3 ms	592 KB	Output is correct
26	Correct	2 ms	592 KB	Output is correct
27	Correct	2 ms	592 KB	Output is correct
28	Correct	2 ms	592 KB	Output is correct
29	Correct	2 ms	592 KB	Output is correct
30	Correct	176 ms	8392 KB	Output is correct
31	Correct	167 ms	8392 KB	Output is correct
32	Correct	155 ms	8444 KB	Output is correct
33	Correct	166 ms	8444 KB	Output is correct
34	Correct	157 ms	8444 KB	Output is correct
35	Correct	185 ms	8444 KB	Output is correct
36	Correct	150 ms	8444 KB	Output is correct
37	Correct	221 ms	8444 KB	Output is correct
38	Correct	166 ms	8444 KB	Output is correct
39	Correct	150 ms	8444 KB	Output is correct
40	Correct	154 ms	8444 KB	Output is correct
41	Correct	179 ms	8444 KB	Output is correct
42	Correct	154 ms	8444 KB	Output is correct
43	Correct	138 ms	8444 KB	Output is correct

Subtask #4

0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	2 ms	8444 KB	3rd lines differ - on the 1st token, expected: '3304', found: '3169'
2	Halted	0 ms	0 KB	-

Subtask #5

0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	248 KB	Output is correct
2	Correct	2 ms	356 KB	Output is correct
3	Correct	2 ms	440 KB	Output is correct
4	Correct	3 ms	440 KB	Output is correct
5	Correct	2 ms	488 KB	Output is correct
6	Correct	2 ms	488 KB	Output is correct
7	Correct	3 ms	488 KB	Output is correct
8	Correct	2 ms	488 KB	Output is correct
9	Correct	2 ms	524 KB	Output is correct
10	Correct	2 ms	556 KB	Output is correct
11	Correct	3 ms	556 KB	Output is correct
12	Correct	2 ms	556 KB	Output is correct
13	Correct	2 ms	556 KB	Output is correct
14	Correct	2 ms	580 KB	Output is correct
15	Correct	3 ms	580 KB	Output is correct
16	Correct	2 ms	580 KB	Output is correct
17	Correct	2 ms	580 KB	Output is correct
18	Correct	2 ms	580 KB	Output is correct
19	Correct	2 ms	580 KB	Output is correct
20	Correct	3 ms	592 KB	Output is correct
21	Correct	2 ms	592 KB	Output is correct
22	Correct	2 ms	592 KB	Output is correct
23	Correct	3 ms	592 KB	Output is correct
24	Correct	2 ms	592 KB	Output is correct
25	Correct	3 ms	592 KB	Output is correct
26	Correct	2 ms	592 KB	Output is correct
27	Correct	2 ms	592 KB	Output is correct
28	Correct	2 ms	592 KB	Output is correct
29	Correct	2 ms	592 KB	Output is correct
30	Correct	176 ms	8392 KB	Output is correct
31	Correct	167 ms	8392 KB	Output is correct
32	Correct	155 ms	8444 KB	Output is correct
33	Correct	166 ms	8444 KB	Output is correct
34	Correct	157 ms	8444 KB	Output is correct
35	Correct	185 ms	8444 KB	Output is correct
36	Correct	150 ms	8444 KB	Output is correct
37	Correct	221 ms	8444 KB	Output is correct
38	Correct	166 ms	8444 KB	Output is correct
39	Correct	150 ms	8444 KB	Output is correct
40	Correct	154 ms	8444 KB	Output is correct
41	Correct	179 ms	8444 KB	Output is correct
42	Correct	154 ms	8444 KB	Output is correct
43	Correct	138 ms	8444 KB	Output is correct
44	Incorrect	2 ms	8444 KB	3rd lines differ - on the 1st token, expected: '3304', found: '3169'
45	Halted	0 ms	0 KB	-