Submission #74312

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
74312	2018-08-31T08:46:08 Z	nvmdava	Ancient Books (IOI17_books)	C++17	50 / 100	207 ms	13440 KB

books

#include "books.h"
#include <bits/stdc++.h>
using namespace std;
int r = 0;
vector<int> p;
bool in[1000001];
void go(int v){
	if(in[v] == 1){
		return;
	}
	in[v] = 1;
	r = max(r, v);
	go(p[v]);
}

long long minimum_walk(vector<int> p, int s) {
	::p = p;
	int q = 0;
	long long ans = 0;
	for(int i = 0; i < p.size(); i++){
		ans += (long long)abs(i - p[i]);
		if(in[i] || p[i] == i) continue;
		if(r < i){
			ans += (long long)(i - r) * 2;
		}
		go(i);
	}
	if(s > r){
		ans += (s - r) * 2;
	}
	return ans;
}

Compilation message

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:20:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < p.size(); i++){
                 ~~^~~~~~~~~~
books.cpp:18:6: warning: unused variable 'q' [-Wunused-variable]
  int q = 0;
      ^

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	508 KB	Output is correct
3	Correct	2 ms	508 KB	Output is correct
4	Correct	2 ms	508 KB	Output is correct
5	Correct	2 ms	508 KB	Output is correct
6	Correct	2 ms	508 KB	Output is correct
7	Correct	2 ms	508 KB	Output is correct
8	Correct	2 ms	508 KB	Output is correct
9	Correct	2 ms	508 KB	Output is correct
10	Correct	2 ms	508 KB	Output is correct
11	Correct	2 ms	516 KB	Output is correct
12	Correct	2 ms	516 KB	Output is correct
13	Correct	2 ms	516 KB	Output is correct
14	Correct	2 ms	592 KB	Output is correct
15	Correct	2 ms	608 KB	Output is correct
16	Correct	2 ms	608 KB	Output is correct
17	Correct	2 ms	620 KB	Output is correct
18	Correct	2 ms	620 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	508 KB	Output is correct
3	Correct	2 ms	508 KB	Output is correct
4	Correct	2 ms	508 KB	Output is correct
5	Correct	2 ms	508 KB	Output is correct
6	Correct	2 ms	508 KB	Output is correct
7	Correct	2 ms	508 KB	Output is correct
8	Correct	2 ms	508 KB	Output is correct
9	Correct	2 ms	508 KB	Output is correct
10	Correct	2 ms	508 KB	Output is correct
11	Correct	2 ms	516 KB	Output is correct
12	Correct	2 ms	516 KB	Output is correct
13	Correct	2 ms	516 KB	Output is correct
14	Correct	2 ms	592 KB	Output is correct
15	Correct	2 ms	608 KB	Output is correct
16	Correct	2 ms	608 KB	Output is correct
17	Correct	2 ms	620 KB	Output is correct
18	Correct	2 ms	620 KB	Output is correct
19	Correct	2 ms	620 KB	Output is correct
20	Correct	2 ms	620 KB	Output is correct
21	Correct	2 ms	620 KB	Output is correct
22	Correct	2 ms	636 KB	Output is correct
23	Correct	2 ms	636 KB	Output is correct
24	Correct	2 ms	636 KB	Output is correct
25	Correct	2 ms	636 KB	Output is correct
26	Correct	2 ms	636 KB	Output is correct
27	Correct	2 ms	636 KB	Output is correct
28	Correct	2 ms	636 KB	Output is correct
29	Correct	2 ms	636 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	508 KB	Output is correct
3	Correct	2 ms	508 KB	Output is correct
4	Correct	2 ms	508 KB	Output is correct
5	Correct	2 ms	508 KB	Output is correct
6	Correct	2 ms	508 KB	Output is correct
7	Correct	2 ms	508 KB	Output is correct
8	Correct	2 ms	508 KB	Output is correct
9	Correct	2 ms	508 KB	Output is correct
10	Correct	2 ms	508 KB	Output is correct
11	Correct	2 ms	516 KB	Output is correct
12	Correct	2 ms	516 KB	Output is correct
13	Correct	2 ms	516 KB	Output is correct
14	Correct	2 ms	592 KB	Output is correct
15	Correct	2 ms	608 KB	Output is correct
16	Correct	2 ms	608 KB	Output is correct
17	Correct	2 ms	620 KB	Output is correct
18	Correct	2 ms	620 KB	Output is correct
19	Correct	2 ms	620 KB	Output is correct
20	Correct	2 ms	620 KB	Output is correct
21	Correct	2 ms	620 KB	Output is correct
22	Correct	2 ms	636 KB	Output is correct
23	Correct	2 ms	636 KB	Output is correct
24	Correct	2 ms	636 KB	Output is correct
25	Correct	2 ms	636 KB	Output is correct
26	Correct	2 ms	636 KB	Output is correct
27	Correct	2 ms	636 KB	Output is correct
28	Correct	2 ms	636 KB	Output is correct
29	Correct	2 ms	636 KB	Output is correct
30	Correct	204 ms	13308 KB	Output is correct
31	Correct	207 ms	13308 KB	Output is correct
32	Correct	142 ms	13308 KB	Output is correct
33	Correct	198 ms	13308 KB	Output is correct
34	Correct	152 ms	13308 KB	Output is correct
35	Correct	156 ms	13440 KB	Output is correct
36	Correct	160 ms	13440 KB	Output is correct
37	Correct	160 ms	13440 KB	Output is correct
38	Correct	160 ms	13440 KB	Output is correct
39	Correct	167 ms	13440 KB	Output is correct
40	Correct	184 ms	13440 KB	Output is correct
41	Correct	203 ms	13440 KB	Output is correct
42	Correct	195 ms	13440 KB	Output is correct
43	Correct	160 ms	13440 KB	Output is correct

Subtask #4

0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	2 ms	13440 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	376 KB	Output is correct
2	Correct	2 ms	508 KB	Output is correct
3	Correct	2 ms	508 KB	Output is correct
4	Correct	2 ms	508 KB	Output is correct
5	Correct	2 ms	508 KB	Output is correct
6	Correct	2 ms	508 KB	Output is correct
7	Correct	2 ms	508 KB	Output is correct
8	Correct	2 ms	508 KB	Output is correct
9	Correct	2 ms	508 KB	Output is correct
10	Correct	2 ms	508 KB	Output is correct
11	Correct	2 ms	516 KB	Output is correct
12	Correct	2 ms	516 KB	Output is correct
13	Correct	2 ms	516 KB	Output is correct
14	Correct	2 ms	592 KB	Output is correct
15	Correct	2 ms	608 KB	Output is correct
16	Correct	2 ms	608 KB	Output is correct
17	Correct	2 ms	620 KB	Output is correct
18	Correct	2 ms	620 KB	Output is correct
19	Correct	2 ms	620 KB	Output is correct
20	Correct	2 ms	620 KB	Output is correct
21	Correct	2 ms	620 KB	Output is correct
22	Correct	2 ms	636 KB	Output is correct
23	Correct	2 ms	636 KB	Output is correct
24	Correct	2 ms	636 KB	Output is correct
25	Correct	2 ms	636 KB	Output is correct
26	Correct	2 ms	636 KB	Output is correct
27	Correct	2 ms	636 KB	Output is correct
28	Correct	2 ms	636 KB	Output is correct
29	Correct	2 ms	636 KB	Output is correct
30	Correct	204 ms	13308 KB	Output is correct
31	Correct	207 ms	13308 KB	Output is correct
32	Correct	142 ms	13308 KB	Output is correct
33	Correct	198 ms	13308 KB	Output is correct
34	Correct	152 ms	13308 KB	Output is correct
35	Correct	156 ms	13440 KB	Output is correct
36	Correct	160 ms	13440 KB	Output is correct
37	Correct	160 ms	13440 KB	Output is correct
38	Correct	160 ms	13440 KB	Output is correct
39	Correct	167 ms	13440 KB	Output is correct
40	Correct	184 ms	13440 KB	Output is correct
41	Correct	203 ms	13440 KB	Output is correct
42	Correct	195 ms	13440 KB	Output is correct
43	Correct	160 ms	13440 KB	Output is correct
44	Incorrect	2 ms	13440 KB	3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45	Halted	0 ms	0 KB	-