Submission #105246

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
105246	2019-04-11T04:08:26 Z	puyu_liao	Ancient Books (IOI17_books)	C++14	50 / 100	257 ms	8440 KB

books

#include<bits/stdc++.h>
#include<stdio.h>
using namespace std;
#define IOS {cin.tie(0);ios_base::sync_with_stdio(false);}

#include"books.h"
typedef long long lll;
#define N 1000005
bitset<N> vis;

lll minimum_walk(vector<int> p,int s){
	vis.reset();
	int ll = s,rr = s,gl,gr;
	lll ans = 0;
	for(int i=0;i<p.size();) if(!vis[i]){
		gl = p.size()+1, gr = -1;
		int j = i;
		do{
			int t = j;
			if(vis[t]) {
				j++;
				continue;
			}
			vis[t] = 1;
			while(!vis[p[t]]){ 
				gl = min(gl,t); gr = max(gr,t);
				vis[p[t]] = 1;
				ans += abs(p[t] - t);
				t = p[t];
				gl = min(gl,t); gr = max(gr,t);
			}	
			ans += abs(p[t] - t);
			j++;
		}while(j<=gr);
		if(gl <= gr && gl < s) ll = min(ll,gl);
		if(gl <= gr && gr > s) rr = max(rr,gr);
		if(gl <= gr) ans -= 2*(gr - gl);
		i = j;
	}
	return ans + rr+rr-ll-ll;
}

Compilation message

books.cpp: In function 'lll 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();) if(!vis[i]){
              ~^~~~~~~~~

Subtask #1

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	512 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	3 ms	512 KB	Output is correct
5	Correct	2 ms	384 KB	Output is correct
6	Correct	3 ms	384 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	2 ms	512 KB	Output is correct
9	Correct	3 ms	512 KB	Output is correct
10	Correct	3 ms	512 KB	Output is correct
11	Correct	2 ms	384 KB	Output is correct
12	Correct	3 ms	512 KB	Output is correct
13	Correct	2 ms	512 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	2 ms	384 KB	Output is correct
16	Correct	2 ms	512 KB	Output is correct
17	Correct	2 ms	512 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct

Subtask #2

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	512 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	3 ms	512 KB	Output is correct
5	Correct	2 ms	384 KB	Output is correct
6	Correct	3 ms	384 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	2 ms	512 KB	Output is correct
9	Correct	3 ms	512 KB	Output is correct
10	Correct	3 ms	512 KB	Output is correct
11	Correct	2 ms	384 KB	Output is correct
12	Correct	3 ms	512 KB	Output is correct
13	Correct	2 ms	512 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	2 ms	384 KB	Output is correct
16	Correct	2 ms	512 KB	Output is correct
17	Correct	2 ms	512 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	2 ms	512 KB	Output is correct
20	Correct	3 ms	512 KB	Output is correct
21	Correct	2 ms	512 KB	Output is correct
22	Correct	3 ms	384 KB	Output is correct
23	Correct	3 ms	384 KB	Output is correct
24	Correct	3 ms	512 KB	Output is correct
25	Correct	3 ms	512 KB	Output is correct
26	Correct	3 ms	512 KB	Output is correct
27	Correct	3 ms	492 KB	Output is correct
28	Correct	2 ms	384 KB	Output is correct
29	Correct	2 ms	384 KB	Output is correct

Subtask #3

28.0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	512 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	3 ms	512 KB	Output is correct
5	Correct	2 ms	384 KB	Output is correct
6	Correct	3 ms	384 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	2 ms	512 KB	Output is correct
9	Correct	3 ms	512 KB	Output is correct
10	Correct	3 ms	512 KB	Output is correct
11	Correct	2 ms	384 KB	Output is correct
12	Correct	3 ms	512 KB	Output is correct
13	Correct	2 ms	512 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	2 ms	384 KB	Output is correct
16	Correct	2 ms	512 KB	Output is correct
17	Correct	2 ms	512 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	2 ms	512 KB	Output is correct
20	Correct	3 ms	512 KB	Output is correct
21	Correct	2 ms	512 KB	Output is correct
22	Correct	3 ms	384 KB	Output is correct
23	Correct	3 ms	384 KB	Output is correct
24	Correct	3 ms	512 KB	Output is correct
25	Correct	3 ms	512 KB	Output is correct
26	Correct	3 ms	512 KB	Output is correct
27	Correct	3 ms	492 KB	Output is correct
28	Correct	2 ms	384 KB	Output is correct
29	Correct	2 ms	384 KB	Output is correct
30	Correct	257 ms	8288 KB	Output is correct
31	Correct	230 ms	8312 KB	Output is correct
32	Correct	136 ms	8244 KB	Output is correct
33	Correct	141 ms	8260 KB	Output is correct
34	Correct	126 ms	8440 KB	Output is correct
35	Correct	135 ms	8312 KB	Output is correct
36	Correct	178 ms	8252 KB	Output is correct
37	Correct	138 ms	8312 KB	Output is correct
38	Correct	170 ms	8252 KB	Output is correct
39	Correct	181 ms	8312 KB	Output is correct
40	Correct	175 ms	8312 KB	Output is correct
41	Correct	169 ms	8312 KB	Output is correct
42	Correct	218 ms	8252 KB	Output is correct
43	Correct	131 ms	8316 KB	Output is correct

Subtask #4

0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	2 ms	384 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	512 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	3 ms	512 KB	Output is correct
5	Correct	2 ms	384 KB	Output is correct
6	Correct	3 ms	384 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	2 ms	512 KB	Output is correct
9	Correct	3 ms	512 KB	Output is correct
10	Correct	3 ms	512 KB	Output is correct
11	Correct	2 ms	384 KB	Output is correct
12	Correct	3 ms	512 KB	Output is correct
13	Correct	2 ms	512 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	2 ms	384 KB	Output is correct
16	Correct	2 ms	512 KB	Output is correct
17	Correct	2 ms	512 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	2 ms	512 KB	Output is correct
20	Correct	3 ms	512 KB	Output is correct
21	Correct	2 ms	512 KB	Output is correct
22	Correct	3 ms	384 KB	Output is correct
23	Correct	3 ms	384 KB	Output is correct
24	Correct	3 ms	512 KB	Output is correct
25	Correct	3 ms	512 KB	Output is correct
26	Correct	3 ms	512 KB	Output is correct
27	Correct	3 ms	492 KB	Output is correct
28	Correct	2 ms	384 KB	Output is correct
29	Correct	2 ms	384 KB	Output is correct
30	Correct	257 ms	8288 KB	Output is correct
31	Correct	230 ms	8312 KB	Output is correct
32	Correct	136 ms	8244 KB	Output is correct
33	Correct	141 ms	8260 KB	Output is correct
34	Correct	126 ms	8440 KB	Output is correct
35	Correct	135 ms	8312 KB	Output is correct
36	Correct	178 ms	8252 KB	Output is correct
37	Correct	138 ms	8312 KB	Output is correct
38	Correct	170 ms	8252 KB	Output is correct
39	Correct	181 ms	8312 KB	Output is correct
40	Correct	175 ms	8312 KB	Output is correct
41	Correct	169 ms	8312 KB	Output is correct
42	Correct	218 ms	8252 KB	Output is correct
43	Correct	131 ms	8316 KB	Output is correct
44	Incorrect	2 ms	384 KB	3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45	Halted	0 ms	0 KB	-