Submission #797381

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
797381	2023-07-29T10:13:00 Z	alvingogo	Ancient Books (IOI17_books)	C++14	50 / 100	245 ms	36732 KB

books

#include "books.h"
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#define AquA cin.tie(0);ios_base::sync_with_stdio(0);
#define fs first
#define sc second
#define p_q priority_queue
using namespace std;

typedef long long ll;
struct DSU{
	vector<int> bo;
	void init(int x){
		bo.resize(x);
		iota(bo.begin(),bo.end(),0);
	}
	int find(int x){
		return bo[x]==x?x:bo[x]=find(bo[x]);
	}
	int merge(int x,int y){
		x=find(x);
		y=find(y);
		if(x==y){
			return 0;
		}
		bo[x]=y;
		return 1;
	}
}dsu;
ll minimum_walk(vector<int> p, int s) {
	ll ans=0;
	int n=p.size();
	dsu.init(n);
	vector<int> bo(n,-1),k(n),pre(n);
	for(int i=0;i<n;i++){
		if(bo[i]==-1){
			pre[i]++;
			int cnt=0;
			int f=0;
			for(int x=i;bo[x]==-1;x=p[x]){
				dsu.merge(x,i);
				bo[x]=i;
				cnt++;
				f=max(f,x);
			}
			if(cnt>=2){
				k[i]=1;
			}
			pre[f]--;
		}
		ans+=abs(i-p[i]);
	}
	for(int i=1;i<n;i++){
		pre[i]+=pre[i-1];
	}
	k[bo[s]]=1;
	for(int i=0;i+1<n;i++){
		if(pre[i]){
			dsu.merge(i,i+1);
		}
	}
	int mn=-1;
	vector<pair<int,pair<int,int> > > e;
	for(int i=0;i<n;i++){
		if(k[bo[i]]){
			if(mn!=-1){
				e.push_back({i-mn,{bo[i],bo[mn]}});
			}
			mn=i;
		}
	}
	sort(e.begin(),e.end());
	for(auto h:e){
		ans+=2*dsu.merge(h.sc.fs,h.sc.sc)*h.fs;
	}
	return ans;
}

Subtask #1
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	216 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	300 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	296 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	300 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	1 ms	300 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct

Subtask #2
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	216 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	300 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	296 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	300 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	1 ms	300 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	340 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	300 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct

Subtask #3
28.0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	216 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	300 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	296 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	300 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	1 ms	300 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	340 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	300 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	232 ms	36688 KB	Output is correct
31	Correct	232 ms	36712 KB	Output is correct
32	Correct	84 ms	24268 KB	Output is correct
33	Correct	157 ms	30528 KB	Output is correct
34	Correct	157 ms	30584 KB	Output is correct
35	Correct	185 ms	36712 KB	Output is correct
36	Correct	186 ms	36688 KB	Output is correct
37	Correct	245 ms	36732 KB	Output is correct
38	Correct	207 ms	36664 KB	Output is correct
39	Correct	187 ms	36680 KB	Output is correct
40	Correct	167 ms	36620 KB	Output is correct
41	Correct	168 ms	36660 KB	Output is correct
42	Correct	173 ms	36688 KB	Output is correct
43	Correct	163 ms	30672 KB	Output is correct

Subtask #4
0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	1 ms	340 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	1 ms	216 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	300 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	296 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	300 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	1 ms	300 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	340 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	300 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	232 ms	36688 KB	Output is correct
31	Correct	232 ms	36712 KB	Output is correct
32	Correct	84 ms	24268 KB	Output is correct
33	Correct	157 ms	30528 KB	Output is correct
34	Correct	157 ms	30584 KB	Output is correct
35	Correct	185 ms	36712 KB	Output is correct
36	Correct	186 ms	36688 KB	Output is correct
37	Correct	245 ms	36732 KB	Output is correct
38	Correct	207 ms	36664 KB	Output is correct
39	Correct	187 ms	36680 KB	Output is correct
40	Correct	167 ms	36620 KB	Output is correct
41	Correct	168 ms	36660 KB	Output is correct
42	Correct	173 ms	36688 KB	Output is correct
43	Correct	163 ms	30672 KB	Output is correct
44	Incorrect	1 ms	340 KB	3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45	Halted	0 ms	0 KB	-

Submission #797381

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