답안 #812643

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
812643	2023-08-07T09:46:58 Z	I_Love_EliskaM_	꿈 (IOI13_dreaming)	C++17	47 / 100	910 ms	26200 KB

dreaming

#include "dreaming.h"
#include <bits/stdc++.h>
using namespace std;
#define forn(i,n) for(int i=0; i<n; ++i)
#define pb push_back
#define all(x) x.begin(), x.end()
#define pi pair<int,int>
#define f first
#define s second
using ll = long long;

struct DSU {
	vector<int> p,sz;
	DSU(int n) {
		forn(i,n) p.pb(i), sz.pb(1);
	}
	int get(int u) {
		return p[u]==u?u:get(p[u]);
	}
	void uni(int u, int v) {
		u=get(u),v=get(v);
		if (u==v) return;
		if (sz[u]<sz[v]) swap(u,v);
		sz[u]+=sz[v];
		p[v]=u;
	}
};

const int N=1e5+5;
vector<pi> adj[N];
bitset<N> vis;

int d[N], in[N];
void dfs(int u, int p) {
	in[u]=0;
	for(auto&e:adj[u]) {
		int v=e.f, w=e.s;
		if (v==p) continue;
		d[v]=d[u]+w;
		dfs(v,u);
		in[u]=max(in[u],in[v]+w);
	}
}

int ans=0;
pi find(int u, int p, int o) {
	ans=max(ans,o+in[u]);
	pi ret = {u, max(o,in[u])};
	vector<int> sf={0};
	reverse(all(adj[u]));
	for(auto&e:adj[u]) {
		int v=e.f, w=e.s;
		if (v==p) continue;
		sf.pb(max(sf.back(),in[v]+w));
	}
	reverse(all(adj[u]));
	int mx=0;
	for(auto&e:adj[u]) {
		int v=e.f, w=e.s;
		if (v==p) continue;
		sf.pop_back();
		auto x = find(v,u,max({o,mx,sf.back()})+w);
		if (x.s<ret.s) ret=x;
		mx=max(mx,in[v]+w);
	}
	return ret;
}

int travelTime(int n, int m, int l, int a[], int b[], int t[]) {

	forn(i,m) {
		int u=a[i],v=b[i],w=t[i];
		adj[u].pb({v,w});
		adj[v].pb({u,w});
	}

	forn(it,20) {

		DSU dsu(n);
		forn(i,n) for(auto&x:adj[i]) dsu.uni(i,x.f);
		vis.reset();
		vector<int> c;
		forn(i,n) {
			int u=dsu.get(i);
			if (vis[u]) continue;
			vis[u]=1;
			c.pb(u);
		}
		int k=c.size();
		vector<pi> z;
		forn(i,k) {
			d[c[i]]=0;
			dfs(c[i],-1);
			auto q=find(c[i],-1,0);
			swap(q.f,q.s);
			z.pb(q);
		}
		sort(all(z));
		reverse(all(z));
		vector<pi> z2;
		int r=0;
		for (int i=0; i<k; ++i) {
			r=max(r,i+1);
			while (r<k && z[k].f+l>z[i].f) ++r;
			if (r>=k) {
				z2.pb(z[i]); continue;
			}
			int u=z[i].s, v=z[r].s;
			adj[u].pb({v,l});
			adj[v].pb({u,l});
			++r;
		}
		k=z2.size();
		forn(i,k/2) {
			int u=z2[i].s, v=z2[k/2+i].s;
			adj[u].pb({v,l});
			adj[v].pb({u,l});
		}

	}

	ans=0;
	d[0]=0;
	dfs(0,-1);
	find(0,-1,0);
	return ans;

}

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	417 ms	22784 KB	Output is correct
2	Correct	350 ms	18376 KB	Output is correct
3	Correct	208 ms	15980 KB	Output is correct
4	Correct	42 ms	5588 KB	Output is correct
5	Correct	35 ms	4052 KB	Output is correct
6	Correct	81 ms	6296 KB	Output is correct
7	Correct	4 ms	2644 KB	Output is correct
8	Correct	158 ms	9804 KB	Output is correct
9	Correct	910 ms	13172 KB	Output is correct
10	Correct	3 ms	2772 KB	Output is correct
11	Correct	538 ms	13312 KB	Output is correct
12	Correct	403 ms	17296 KB	Output is correct
13	Correct	4 ms	2772 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	2644 KB	Output is correct
2	Correct	2 ms	2660 KB	Output is correct
3	Correct	2 ms	2664 KB	Output is correct
4	Correct	2 ms	2644 KB	Output is correct
5	Correct	2 ms	2644 KB	Output is correct
6	Correct	2 ms	2652 KB	Output is correct
7	Correct	2 ms	2644 KB	Output is correct
8	Correct	2 ms	2644 KB	Output is correct
9	Correct	2 ms	2592 KB	Output is correct
10	Correct	2 ms	2644 KB	Output is correct
11	Correct	2 ms	2644 KB	Output is correct
12	Correct	2 ms	2644 KB	Output is correct
13	Correct	2 ms	2644 KB	Output is correct
14	Correct	2 ms	2664 KB	Output is correct
15	Correct	2 ms	2644 KB	Output is correct
16	Correct	2 ms	2644 KB	Output is correct
17	Correct	2 ms	2644 KB	Output is correct
18	Correct	2 ms	2644 KB	Output is correct
19	Correct	2 ms	2644 KB	Output is correct
20	Correct	2 ms	2644 KB	Output is correct
21	Correct	2 ms	2644 KB	Output is correct
22	Correct	2 ms	2644 KB	Output is correct
23	Correct	2 ms	2644 KB	Output is correct
24	Correct	2 ms	2644 KB	Output is correct
25	Correct	2 ms	2644 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	417 ms	22784 KB	Output is correct
2	Correct	350 ms	18376 KB	Output is correct
3	Correct	208 ms	15980 KB	Output is correct
4	Correct	42 ms	5588 KB	Output is correct
5	Correct	35 ms	4052 KB	Output is correct
6	Correct	81 ms	6296 KB	Output is correct
7	Correct	4 ms	2644 KB	Output is correct
8	Correct	158 ms	9804 KB	Output is correct
9	Correct	910 ms	13172 KB	Output is correct
10	Correct	3 ms	2772 KB	Output is correct
11	Correct	538 ms	13312 KB	Output is correct
12	Correct	403 ms	17296 KB	Output is correct
13	Correct	4 ms	2772 KB	Output is correct
14	Correct	2 ms	2644 KB	Output is correct
15	Correct	2 ms	2660 KB	Output is correct
16	Correct	2 ms	2664 KB	Output is correct
17	Correct	2 ms	2644 KB	Output is correct
18	Correct	2 ms	2644 KB	Output is correct
19	Correct	2 ms	2652 KB	Output is correct
20	Correct	2 ms	2644 KB	Output is correct
21	Correct	2 ms	2644 KB	Output is correct
22	Correct	2 ms	2592 KB	Output is correct
23	Correct	2 ms	2644 KB	Output is correct
24	Correct	2 ms	2644 KB	Output is correct
25	Correct	2 ms	2644 KB	Output is correct
26	Correct	2 ms	2644 KB	Output is correct
27	Correct	2 ms	2664 KB	Output is correct
28	Correct	2 ms	2644 KB	Output is correct
29	Correct	2 ms	2644 KB	Output is correct
30	Correct	2 ms	2644 KB	Output is correct
31	Correct	2 ms	2644 KB	Output is correct
32	Correct	2 ms	2644 KB	Output is correct
33	Correct	2 ms	2644 KB	Output is correct
34	Correct	2 ms	2644 KB	Output is correct
35	Correct	2 ms	2644 KB	Output is correct
36	Correct	2 ms	2644 KB	Output is correct
37	Correct	2 ms	2644 KB	Output is correct
38	Correct	2 ms	2644 KB	Output is correct
39	Correct	430 ms	22776 KB	Output is correct
40	Correct	378 ms	18440 KB	Output is correct
41	Correct	219 ms	15856 KB	Output is correct
42	Correct	42 ms	5588 KB	Output is correct
43	Correct	1 ms	2644 KB	Output is correct
44	Correct	2 ms	2644 KB	Output is correct
45	Correct	2 ms	2644 KB	Output is correct
46	Correct	2 ms	2664 KB	Output is correct
47	Correct	2 ms	2644 KB	Output is correct
48	Correct	2 ms	2644 KB	Output is correct
49	Correct	2 ms	2664 KB	Output is correct
50	Correct	2 ms	2644 KB	Output is correct
51	Correct	2 ms	2644 KB	Output is correct
52	Correct	2 ms	2660 KB	Output is correct
53	Correct	2 ms	2644 KB	Output is correct
54	Correct	2 ms	2644 KB	Output is correct
55	Correct	2 ms	2660 KB	Output is correct
56	Correct	2 ms	2644 KB	Output is correct
57	Correct	415 ms	10508 KB	Output is correct
58	Correct	435 ms	10672 KB	Output is correct
59	Correct	451 ms	10940 KB	Output is correct
60	Correct	447 ms	10520 KB	Output is correct
61	Correct	427 ms	10668 KB	Output is correct
62	Correct	410 ms	10672 KB	Output is correct
63	Correct	447 ms	10560 KB	Output is correct
64	Correct	383 ms	10560 KB	Output is correct
65	Correct	425 ms	10604 KB	Output is correct
66	Correct	392 ms	10532 KB	Output is correct
67	Correct	459 ms	10608 KB	Output is correct
68	Correct	447 ms	10512 KB	Output is correct
69	Correct	444 ms	10500 KB	Output is correct
70	Correct	466 ms	10548 KB	Output is correct
71	Correct	1 ms	2644 KB	Output is correct
72	Correct	10 ms	2976 KB	Output is correct
73	Correct	10 ms	2968 KB	Output is correct
74	Correct	10 ms	2960 KB	Output is correct
75	Correct	9 ms	2900 KB	Output is correct
76	Correct	9 ms	2960 KB	Output is correct
77	Correct	9 ms	2900 KB	Output is correct
78	Correct	10 ms	2900 KB	Output is correct
79	Correct	10 ms	2900 KB	Output is correct
80	Correct	459 ms	10904 KB	Output is correct
81	Correct	449 ms	10884 KB	Output is correct
82	Correct	432 ms	10772 KB	Output is correct
83	Correct	412 ms	10356 KB	Output is correct
84	Correct	5 ms	2900 KB	Output is correct
85	Correct	5 ms	2772 KB	Output is correct
86	Correct	8 ms	2804 KB	Output is correct
87	Correct	9 ms	2900 KB	Output is correct
88	Correct	8 ms	2924 KB	Output is correct
89	Correct	8 ms	2900 KB	Output is correct
90	Correct	9 ms	2900 KB	Output is correct
91	Correct	10 ms	2956 KB	Output is correct
92	Correct	9 ms	2928 KB	Output is correct
93	Correct	8 ms	2932 KB	Output is correct
94	Correct	2 ms	2644 KB	Output is correct
95	Correct	2 ms	2644 KB	Output is correct
96	Correct	1 ms	2644 KB	Output is correct
97	Correct	2 ms	2644 KB	Output is correct
98	Correct	2 ms	2664 KB	Output is correct
99	Correct	2 ms	2644 KB	Output is correct
100	Correct	2 ms	2664 KB	Output is correct
101	Correct	2 ms	2644 KB	Output is correct
102	Correct	2 ms	2644 KB	Output is correct
103	Correct	1 ms	2644 KB	Output is correct
104	Correct	40 ms	4100 KB	Output is correct
105	Correct	79 ms	6276 KB	Output is correct
106	Correct	2 ms	2644 KB	Output is correct
107	Correct	161 ms	9564 KB	Output is correct
108	Correct	205 ms	12496 KB	Output is correct
109	Correct	3 ms	2772 KB	Output is correct
110	Correct	337 ms	12648 KB	Output is correct
111	Correct	385 ms	16664 KB	Output is correct
112	Correct	4 ms	2772 KB	Output is correct
113	Correct	601 ms	26200 KB	Output is correct

Subtask #4
0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	199 ms	12424 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	2644 KB	Output is correct
2	Correct	2 ms	2660 KB	Output is correct
3	Correct	2 ms	2664 KB	Output is correct
4	Correct	2 ms	2644 KB	Output is correct
5	Correct	2 ms	2644 KB	Output is correct
6	Correct	2 ms	2652 KB	Output is correct
7	Correct	2 ms	2644 KB	Output is correct
8	Correct	2 ms	2644 KB	Output is correct
9	Correct	2 ms	2592 KB	Output is correct
10	Correct	2 ms	2644 KB	Output is correct
11	Correct	2 ms	2644 KB	Output is correct
12	Correct	2 ms	2644 KB	Output is correct
13	Correct	2 ms	2644 KB	Output is correct
14	Correct	2 ms	2664 KB	Output is correct
15	Correct	2 ms	2644 KB	Output is correct
16	Correct	2 ms	2644 KB	Output is correct
17	Correct	2 ms	2644 KB	Output is correct
18	Correct	2 ms	2644 KB	Output is correct
19	Correct	2 ms	2644 KB	Output is correct
20	Correct	2 ms	2644 KB	Output is correct
21	Correct	2 ms	2644 KB	Output is correct
22	Correct	2 ms	2644 KB	Output is correct
23	Correct	2 ms	2644 KB	Output is correct
24	Correct	2 ms	2644 KB	Output is correct
25	Correct	2 ms	2644 KB	Output is correct
26	Correct	3 ms	2644 KB	Output is correct
27	Incorrect	6 ms	2852 KB	Output isn't correct
28	Halted	0 ms	0 KB	-

Subtask #6
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	417 ms	22784 KB	Output is correct
2	Correct	350 ms	18376 KB	Output is correct
3	Correct	208 ms	15980 KB	Output is correct
4	Correct	42 ms	5588 KB	Output is correct
5	Correct	35 ms	4052 KB	Output is correct
6	Correct	81 ms	6296 KB	Output is correct
7	Correct	4 ms	2644 KB	Output is correct
8	Correct	158 ms	9804 KB	Output is correct
9	Correct	910 ms	13172 KB	Output is correct
10	Correct	3 ms	2772 KB	Output is correct
11	Correct	538 ms	13312 KB	Output is correct
12	Correct	403 ms	17296 KB	Output is correct
13	Correct	4 ms	2772 KB	Output is correct
14	Correct	2 ms	2644 KB	Output is correct
15	Correct	2 ms	2660 KB	Output is correct
16	Correct	2 ms	2664 KB	Output is correct
17	Correct	2 ms	2644 KB	Output is correct
18	Correct	2 ms	2644 KB	Output is correct
19	Correct	2 ms	2652 KB	Output is correct
20	Correct	2 ms	2644 KB	Output is correct
21	Correct	2 ms	2644 KB	Output is correct
22	Correct	2 ms	2592 KB	Output is correct
23	Correct	2 ms	2644 KB	Output is correct
24	Correct	2 ms	2644 KB	Output is correct
25	Correct	2 ms	2644 KB	Output is correct
26	Correct	2 ms	2644 KB	Output is correct
27	Correct	2 ms	2664 KB	Output is correct
28	Correct	2 ms	2644 KB	Output is correct
29	Correct	2 ms	2644 KB	Output is correct
30	Correct	2 ms	2644 KB	Output is correct
31	Correct	2 ms	2644 KB	Output is correct
32	Correct	2 ms	2644 KB	Output is correct
33	Correct	2 ms	2644 KB	Output is correct
34	Correct	2 ms	2644 KB	Output is correct
35	Correct	2 ms	2644 KB	Output is correct
36	Correct	2 ms	2644 KB	Output is correct
37	Correct	2 ms	2644 KB	Output is correct
38	Correct	2 ms	2644 KB	Output is correct
39	Correct	430 ms	22776 KB	Output is correct
40	Correct	378 ms	18440 KB	Output is correct
41	Correct	219 ms	15856 KB	Output is correct
42	Correct	42 ms	5588 KB	Output is correct
43	Correct	1 ms	2644 KB	Output is correct
44	Correct	2 ms	2644 KB	Output is correct
45	Correct	2 ms	2644 KB	Output is correct
46	Correct	2 ms	2664 KB	Output is correct
47	Correct	2 ms	2644 KB	Output is correct
48	Correct	2 ms	2644 KB	Output is correct
49	Correct	2 ms	2664 KB	Output is correct
50	Correct	2 ms	2644 KB	Output is correct
51	Correct	2 ms	2644 KB	Output is correct
52	Correct	2 ms	2660 KB	Output is correct
53	Correct	2 ms	2644 KB	Output is correct
54	Correct	2 ms	2644 KB	Output is correct
55	Correct	2 ms	2660 KB	Output is correct
56	Correct	2 ms	2644 KB	Output is correct
57	Correct	415 ms	10508 KB	Output is correct
58	Correct	435 ms	10672 KB	Output is correct
59	Correct	451 ms	10940 KB	Output is correct
60	Correct	447 ms	10520 KB	Output is correct
61	Correct	427 ms	10668 KB	Output is correct
62	Correct	410 ms	10672 KB	Output is correct
63	Correct	447 ms	10560 KB	Output is correct
64	Correct	383 ms	10560 KB	Output is correct
65	Correct	425 ms	10604 KB	Output is correct
66	Correct	392 ms	10532 KB	Output is correct
67	Correct	459 ms	10608 KB	Output is correct
68	Correct	447 ms	10512 KB	Output is correct
69	Correct	444 ms	10500 KB	Output is correct
70	Correct	466 ms	10548 KB	Output is correct
71	Correct	1 ms	2644 KB	Output is correct
72	Correct	10 ms	2976 KB	Output is correct
73	Correct	10 ms	2968 KB	Output is correct
74	Correct	10 ms	2960 KB	Output is correct
75	Correct	9 ms	2900 KB	Output is correct
76	Correct	9 ms	2960 KB	Output is correct
77	Correct	9 ms	2900 KB	Output is correct
78	Correct	10 ms	2900 KB	Output is correct
79	Correct	10 ms	2900 KB	Output is correct
80	Correct	459 ms	10904 KB	Output is correct
81	Correct	449 ms	10884 KB	Output is correct
82	Correct	432 ms	10772 KB	Output is correct
83	Correct	412 ms	10356 KB	Output is correct
84	Correct	5 ms	2900 KB	Output is correct
85	Correct	5 ms	2772 KB	Output is correct
86	Correct	8 ms	2804 KB	Output is correct
87	Correct	9 ms	2900 KB	Output is correct
88	Correct	8 ms	2924 KB	Output is correct
89	Correct	8 ms	2900 KB	Output is correct
90	Correct	9 ms	2900 KB	Output is correct
91	Correct	10 ms	2956 KB	Output is correct
92	Correct	9 ms	2928 KB	Output is correct
93	Correct	8 ms	2932 KB	Output is correct
94	Correct	2 ms	2644 KB	Output is correct
95	Correct	2 ms	2644 KB	Output is correct
96	Correct	1 ms	2644 KB	Output is correct
97	Correct	2 ms	2644 KB	Output is correct
98	Correct	2 ms	2664 KB	Output is correct
99	Correct	2 ms	2644 KB	Output is correct
100	Correct	2 ms	2664 KB	Output is correct
101	Correct	2 ms	2644 KB	Output is correct
102	Correct	2 ms	2644 KB	Output is correct
103	Correct	1 ms	2644 KB	Output is correct
104	Correct	40 ms	4100 KB	Output is correct
105	Correct	79 ms	6276 KB	Output is correct
106	Correct	2 ms	2644 KB	Output is correct
107	Correct	161 ms	9564 KB	Output is correct
108	Correct	205 ms	12496 KB	Output is correct
109	Correct	3 ms	2772 KB	Output is correct
110	Correct	337 ms	12648 KB	Output is correct
111	Correct	385 ms	16664 KB	Output is correct
112	Correct	4 ms	2772 KB	Output is correct
113	Correct	601 ms	26200 KB	Output is correct
114	Incorrect	199 ms	12424 KB	Output isn't correct
115	Halted	0 ms	0 KB	-

답안 #812643

Compilation message

Subtask #1 14.0 / 14.0

Subtask #2 10.0 / 10.0

Subtask #3 23.0 / 23.0

Subtask #4 0 / 18.0

Subtask #5 0 / 12.0

Subtask #6 0 / 23.0

Subtask #1
14.0 / 14.0

Subtask #2
10.0 / 10.0

Subtask #3
23.0 / 23.0

Subtask #4
0 / 18.0

Subtask #5
0 / 12.0

Subtask #6
0 / 23.0