Submission #74391

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
74391	2018-08-31T14:37:17 Z	nvmdava	Ancient Books (IOI17_books)	C++17	50 / 100	223 ms	13436 KB

books

#include "books.h"
#include <bits/stdc++.h>
using namespace std;
int r = -1, l = 1000001;
vector<int> p;
bool in[1000001];
int cl = -1;
int s;
int cr = 1000001;
void go(int v){
	if(in[v] == 1){
		return;
	}
	if(v <= s){
		cl = max(cl, v);
	} else {
		cr = min(cr, v);
	}
	in[v] = 1;
	r = max(r, v);
	go(p[v]);
}
 
long long minimum_walk(vector<int> p, int s) {
	::p = p;
	::s = s;
	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;
		l = min(l, i);
		if(r < i && r != -1){
			ans += (long long)(i - r) * 2;
		}
		go(i);
	}
	if(s < l && l != 1000001){
		ans += (l - s) * 2;
	} else if(s > r && r != -1){
		ans += (r - s) * 2;
	}
	return ans;
}

Compilation message

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:29:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < p.size(); i++){
                 ~~^~~~~~~~~~
books.cpp:27:6: 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	480 KB	Output is correct
3	Correct	2 ms	512 KB	Output is correct
4	Correct	2 ms	596 KB	Output is correct
5	Correct	2 ms	644 KB	Output is correct
6	Correct	2 ms	644 KB	Output is correct
7	Correct	2 ms	644 KB	Output is correct
8	Correct	2 ms	644 KB	Output is correct
9	Correct	2 ms	644 KB	Output is correct
10	Correct	2 ms	644 KB	Output is correct
11	Correct	2 ms	644 KB	Output is correct
12	Correct	2 ms	644 KB	Output is correct
13	Correct	2 ms	644 KB	Output is correct
14	Correct	2 ms	644 KB	Output is correct
15	Correct	2 ms	644 KB	Output is correct
16	Correct	2 ms	644 KB	Output is correct
17	Correct	2 ms	644 KB	Output is correct
18	Correct	2 ms	644 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	480 KB	Output is correct
3	Correct	2 ms	512 KB	Output is correct
4	Correct	2 ms	596 KB	Output is correct
5	Correct	2 ms	644 KB	Output is correct
6	Correct	2 ms	644 KB	Output is correct
7	Correct	2 ms	644 KB	Output is correct
8	Correct	2 ms	644 KB	Output is correct
9	Correct	2 ms	644 KB	Output is correct
10	Correct	2 ms	644 KB	Output is correct
11	Correct	2 ms	644 KB	Output is correct
12	Correct	2 ms	644 KB	Output is correct
13	Correct	2 ms	644 KB	Output is correct
14	Correct	2 ms	644 KB	Output is correct
15	Correct	2 ms	644 KB	Output is correct
16	Correct	2 ms	644 KB	Output is correct
17	Correct	2 ms	644 KB	Output is correct
18	Correct	2 ms	644 KB	Output is correct
19	Correct	2 ms	644 KB	Output is correct
20	Correct	2 ms	644 KB	Output is correct
21	Correct	2 ms	644 KB	Output is correct
22	Correct	2 ms	644 KB	Output is correct
23	Correct	3 ms	644 KB	Output is correct
24	Correct	2 ms	644 KB	Output is correct
25	Correct	2 ms	644 KB	Output is correct
26	Correct	2 ms	644 KB	Output is correct
27	Correct	2 ms	644 KB	Output is correct
28	Correct	2 ms	644 KB	Output is correct
29	Correct	3 ms	644 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	480 KB	Output is correct
3	Correct	2 ms	512 KB	Output is correct
4	Correct	2 ms	596 KB	Output is correct
5	Correct	2 ms	644 KB	Output is correct
6	Correct	2 ms	644 KB	Output is correct
7	Correct	2 ms	644 KB	Output is correct
8	Correct	2 ms	644 KB	Output is correct
9	Correct	2 ms	644 KB	Output is correct
10	Correct	2 ms	644 KB	Output is correct
11	Correct	2 ms	644 KB	Output is correct
12	Correct	2 ms	644 KB	Output is correct
13	Correct	2 ms	644 KB	Output is correct
14	Correct	2 ms	644 KB	Output is correct
15	Correct	2 ms	644 KB	Output is correct
16	Correct	2 ms	644 KB	Output is correct
17	Correct	2 ms	644 KB	Output is correct
18	Correct	2 ms	644 KB	Output is correct
19	Correct	2 ms	644 KB	Output is correct
20	Correct	2 ms	644 KB	Output is correct
21	Correct	2 ms	644 KB	Output is correct
22	Correct	2 ms	644 KB	Output is correct
23	Correct	3 ms	644 KB	Output is correct
24	Correct	2 ms	644 KB	Output is correct
25	Correct	2 ms	644 KB	Output is correct
26	Correct	2 ms	644 KB	Output is correct
27	Correct	2 ms	644 KB	Output is correct
28	Correct	2 ms	644 KB	Output is correct
29	Correct	3 ms	644 KB	Output is correct
30	Correct	223 ms	13308 KB	Output is correct
31	Correct	216 ms	13308 KB	Output is correct
32	Correct	190 ms	13308 KB	Output is correct
33	Correct	154 ms	13308 KB	Output is correct
34	Correct	165 ms	13308 KB	Output is correct
35	Correct	157 ms	13308 KB	Output is correct
36	Correct	160 ms	13308 KB	Output is correct
37	Correct	170 ms	13308 KB	Output is correct
38	Correct	178 ms	13308 KB	Output is correct
39	Correct	161 ms	13316 KB	Output is correct
40	Correct	173 ms	13436 KB	Output is correct
41	Correct	197 ms	13436 KB	Output is correct
42	Correct	189 ms	13436 KB	Output is correct
43	Correct	167 ms	13436 KB	Output is correct

Subtask #4
0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	2 ms	13436 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	480 KB	Output is correct
3	Correct	2 ms	512 KB	Output is correct
4	Correct	2 ms	596 KB	Output is correct
5	Correct	2 ms	644 KB	Output is correct
6	Correct	2 ms	644 KB	Output is correct
7	Correct	2 ms	644 KB	Output is correct
8	Correct	2 ms	644 KB	Output is correct
9	Correct	2 ms	644 KB	Output is correct
10	Correct	2 ms	644 KB	Output is correct
11	Correct	2 ms	644 KB	Output is correct
12	Correct	2 ms	644 KB	Output is correct
13	Correct	2 ms	644 KB	Output is correct
14	Correct	2 ms	644 KB	Output is correct
15	Correct	2 ms	644 KB	Output is correct
16	Correct	2 ms	644 KB	Output is correct
17	Correct	2 ms	644 KB	Output is correct
18	Correct	2 ms	644 KB	Output is correct
19	Correct	2 ms	644 KB	Output is correct
20	Correct	2 ms	644 KB	Output is correct
21	Correct	2 ms	644 KB	Output is correct
22	Correct	2 ms	644 KB	Output is correct
23	Correct	3 ms	644 KB	Output is correct
24	Correct	2 ms	644 KB	Output is correct
25	Correct	2 ms	644 KB	Output is correct
26	Correct	2 ms	644 KB	Output is correct
27	Correct	2 ms	644 KB	Output is correct
28	Correct	2 ms	644 KB	Output is correct
29	Correct	3 ms	644 KB	Output is correct
30	Correct	223 ms	13308 KB	Output is correct
31	Correct	216 ms	13308 KB	Output is correct
32	Correct	190 ms	13308 KB	Output is correct
33	Correct	154 ms	13308 KB	Output is correct
34	Correct	165 ms	13308 KB	Output is correct
35	Correct	157 ms	13308 KB	Output is correct
36	Correct	160 ms	13308 KB	Output is correct
37	Correct	170 ms	13308 KB	Output is correct
38	Correct	178 ms	13308 KB	Output is correct
39	Correct	161 ms	13316 KB	Output is correct
40	Correct	173 ms	13436 KB	Output is correct
41	Correct	197 ms	13436 KB	Output is correct
42	Correct	189 ms	13436 KB	Output is correct
43	Correct	167 ms	13436 KB	Output is correct
44	Incorrect	2 ms	13436 KB	3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45	Halted	0 ms	0 KB	-

Submission #74391

Compilation message

Subtask #1 12.0 / 12.0

Subtask #2 10.0 / 10.0

Subtask #3 28.0 / 28.0

Subtask #4 0 / 20.0

Subtask #5 0 / 30.0

Subtask #1
12.0 / 12.0

Subtask #2
10.0 / 10.0

Subtask #3
28.0 / 28.0

Subtask #4
0 / 20.0

Subtask #5
0 / 30.0