Submission #72692

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
72692	2018-08-26T15:23:10 Z	mhnd	Ancient Books (IOI17_books)	C++14	50 / 100	194 ms	8500 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=p.size()-1;i>s;i--){
		if(p[i]!=i)break;
		ans-=2;
	}
	return ans - 2;
}

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	356 KB	Output is correct
4	Correct	2 ms	432 KB	Output is correct
5	Correct	2 ms	508 KB	Output is correct
6	Correct	2 ms	544 KB	Output is correct
7	Correct	2 ms	544 KB	Output is correct
8	Correct	2 ms	544 KB	Output is correct
9	Correct	2 ms	560 KB	Output is correct
10	Correct	2 ms	560 KB	Output is correct
11	Correct	2 ms	560 KB	Output is correct
12	Correct	2 ms	560 KB	Output is correct
13	Correct	2 ms	560 KB	Output is correct
14	Correct	3 ms	560 KB	Output is correct
15	Correct	2 ms	560 KB	Output is correct
16	Correct	2 ms	560 KB	Output is correct
17	Correct	2 ms	560 KB	Output is correct
18	Correct	2 ms	560 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	356 KB	Output is correct
4	Correct	2 ms	432 KB	Output is correct
5	Correct	2 ms	508 KB	Output is correct
6	Correct	2 ms	544 KB	Output is correct
7	Correct	2 ms	544 KB	Output is correct
8	Correct	2 ms	544 KB	Output is correct
9	Correct	2 ms	560 KB	Output is correct
10	Correct	2 ms	560 KB	Output is correct
11	Correct	2 ms	560 KB	Output is correct
12	Correct	2 ms	560 KB	Output is correct
13	Correct	2 ms	560 KB	Output is correct
14	Correct	3 ms	560 KB	Output is correct
15	Correct	2 ms	560 KB	Output is correct
16	Correct	2 ms	560 KB	Output is correct
17	Correct	2 ms	560 KB	Output is correct
18	Correct	2 ms	560 KB	Output is correct
19	Correct	2 ms	560 KB	Output is correct
20	Correct	2 ms	560 KB	Output is correct
21	Correct	3 ms	560 KB	Output is correct
22	Correct	2 ms	560 KB	Output is correct
23	Correct	3 ms	560 KB	Output is correct
24	Correct	3 ms	560 KB	Output is correct
25	Correct	2 ms	560 KB	Output is correct
26	Correct	2 ms	560 KB	Output is correct
27	Correct	2 ms	560 KB	Output is correct
28	Correct	3 ms	560 KB	Output is correct
29	Correct	2 ms	560 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	356 KB	Output is correct
4	Correct	2 ms	432 KB	Output is correct
5	Correct	2 ms	508 KB	Output is correct
6	Correct	2 ms	544 KB	Output is correct
7	Correct	2 ms	544 KB	Output is correct
8	Correct	2 ms	544 KB	Output is correct
9	Correct	2 ms	560 KB	Output is correct
10	Correct	2 ms	560 KB	Output is correct
11	Correct	2 ms	560 KB	Output is correct
12	Correct	2 ms	560 KB	Output is correct
13	Correct	2 ms	560 KB	Output is correct
14	Correct	3 ms	560 KB	Output is correct
15	Correct	2 ms	560 KB	Output is correct
16	Correct	2 ms	560 KB	Output is correct
17	Correct	2 ms	560 KB	Output is correct
18	Correct	2 ms	560 KB	Output is correct
19	Correct	2 ms	560 KB	Output is correct
20	Correct	2 ms	560 KB	Output is correct
21	Correct	3 ms	560 KB	Output is correct
22	Correct	2 ms	560 KB	Output is correct
23	Correct	3 ms	560 KB	Output is correct
24	Correct	3 ms	560 KB	Output is correct
25	Correct	2 ms	560 KB	Output is correct
26	Correct	2 ms	560 KB	Output is correct
27	Correct	2 ms	560 KB	Output is correct
28	Correct	3 ms	560 KB	Output is correct
29	Correct	2 ms	560 KB	Output is correct
30	Correct	180 ms	8368 KB	Output is correct
31	Correct	182 ms	8368 KB	Output is correct
32	Correct	158 ms	8368 KB	Output is correct
33	Correct	194 ms	8428 KB	Output is correct
34	Correct	177 ms	8428 KB	Output is correct
35	Correct	163 ms	8428 KB	Output is correct
36	Correct	174 ms	8428 KB	Output is correct
37	Correct	164 ms	8428 KB	Output is correct
38	Correct	159 ms	8428 KB	Output is correct
39	Correct	159 ms	8428 KB	Output is correct
40	Correct	154 ms	8428 KB	Output is correct
41	Correct	165 ms	8428 KB	Output is correct
42	Correct	169 ms	8500 KB	Output is correct
43	Correct	155 ms	8500 KB	Output is correct

Subtask #4

0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	5 ms	8500 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	2 ms	248 KB	Output is correct
2	Correct	2 ms	356 KB	Output is correct
3	Correct	2 ms	356 KB	Output is correct
4	Correct	2 ms	432 KB	Output is correct
5	Correct	2 ms	508 KB	Output is correct
6	Correct	2 ms	544 KB	Output is correct
7	Correct	2 ms	544 KB	Output is correct
8	Correct	2 ms	544 KB	Output is correct
9	Correct	2 ms	560 KB	Output is correct
10	Correct	2 ms	560 KB	Output is correct
11	Correct	2 ms	560 KB	Output is correct
12	Correct	2 ms	560 KB	Output is correct
13	Correct	2 ms	560 KB	Output is correct
14	Correct	3 ms	560 KB	Output is correct
15	Correct	2 ms	560 KB	Output is correct
16	Correct	2 ms	560 KB	Output is correct
17	Correct	2 ms	560 KB	Output is correct
18	Correct	2 ms	560 KB	Output is correct
19	Correct	2 ms	560 KB	Output is correct
20	Correct	2 ms	560 KB	Output is correct
21	Correct	3 ms	560 KB	Output is correct
22	Correct	2 ms	560 KB	Output is correct
23	Correct	3 ms	560 KB	Output is correct
24	Correct	3 ms	560 KB	Output is correct
25	Correct	2 ms	560 KB	Output is correct
26	Correct	2 ms	560 KB	Output is correct
27	Correct	2 ms	560 KB	Output is correct
28	Correct	3 ms	560 KB	Output is correct
29	Correct	2 ms	560 KB	Output is correct
30	Correct	180 ms	8368 KB	Output is correct
31	Correct	182 ms	8368 KB	Output is correct
32	Correct	158 ms	8368 KB	Output is correct
33	Correct	194 ms	8428 KB	Output is correct
34	Correct	177 ms	8428 KB	Output is correct
35	Correct	163 ms	8428 KB	Output is correct
36	Correct	174 ms	8428 KB	Output is correct
37	Correct	164 ms	8428 KB	Output is correct
38	Correct	159 ms	8428 KB	Output is correct
39	Correct	159 ms	8428 KB	Output is correct
40	Correct	154 ms	8428 KB	Output is correct
41	Correct	165 ms	8428 KB	Output is correct
42	Correct	169 ms	8500 KB	Output is correct
43	Correct	155 ms	8500 KB	Output is correct
44	Incorrect	5 ms	8500 KB	3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45	Halted	0 ms	0 KB	-