답안 #812598

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
812598	2023-08-07T09:29:13 Z	TimDee	꿈 (IOI13_dreaming)	C++17	47 / 100	225 ms	26176 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();
		for (int i=k&1; i<k; i+=2) {
			d[c[i]]=0;
			d[c[i+1]]=0;
			dfs(c[i],-1);
			dfs(c[i+1],-1);
			auto q1 = find(c[i],-1,0);
			auto q2 = find(c[i+1],-1,0);
			int u=q1.f, v=q2.f;
			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	155 ms	21888 KB	Output is correct
2	Correct	164 ms	17436 KB	Output is correct
3	Correct	101 ms	15212 KB	Output is correct
4	Correct	20 ms	5388 KB	Output is correct
5	Correct	16 ms	3952 KB	Output is correct
6	Correct	33 ms	5932 KB	Output is correct
7	Correct	1 ms	2644 KB	Output is correct
8	Correct	76 ms	9184 KB	Output is correct
9	Correct	82 ms	12436 KB	Output is correct
10	Correct	2 ms	2772 KB	Output is correct
11	Correct	125 ms	12428 KB	Output is correct
12	Correct	149 ms	16240 KB	Output is correct
13	Correct	3 ms	2772 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2644 KB	Output is correct
2	Correct	1 ms	2644 KB	Output is correct
3	Correct	1 ms	2644 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	2644 KB	Output is correct
7	Correct	1 ms	2644 KB	Output is correct
8	Correct	2 ms	2644 KB	Output is correct
9	Correct	1 ms	2644 KB	Output is correct
10	Correct	1 ms	2644 KB	Output is correct
11	Correct	1 ms	2644 KB	Output is correct
12	Correct	1 ms	2644 KB	Output is correct
13	Correct	1 ms	2644 KB	Output is correct
14	Correct	1 ms	2644 KB	Output is correct
15	Correct	1 ms	2644 KB	Output is correct
16	Correct	1 ms	2644 KB	Output is correct
17	Correct	1 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	1 ms	2644 KB	Output is correct
23	Correct	1 ms	2644 KB	Output is correct
24	Correct	1 ms	2644 KB	Output is correct
25	Correct	1 ms	2644 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	155 ms	21888 KB	Output is correct
2	Correct	164 ms	17436 KB	Output is correct
3	Correct	101 ms	15212 KB	Output is correct
4	Correct	20 ms	5388 KB	Output is correct
5	Correct	16 ms	3952 KB	Output is correct
6	Correct	33 ms	5932 KB	Output is correct
7	Correct	1 ms	2644 KB	Output is correct
8	Correct	76 ms	9184 KB	Output is correct
9	Correct	82 ms	12436 KB	Output is correct
10	Correct	2 ms	2772 KB	Output is correct
11	Correct	125 ms	12428 KB	Output is correct
12	Correct	149 ms	16240 KB	Output is correct
13	Correct	3 ms	2772 KB	Output is correct
14	Correct	1 ms	2644 KB	Output is correct
15	Correct	1 ms	2644 KB	Output is correct
16	Correct	1 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	1 ms	2644 KB	Output is correct
21	Correct	2 ms	2644 KB	Output is correct
22	Correct	1 ms	2644 KB	Output is correct
23	Correct	1 ms	2644 KB	Output is correct
24	Correct	1 ms	2644 KB	Output is correct
25	Correct	1 ms	2644 KB	Output is correct
26	Correct	1 ms	2644 KB	Output is correct
27	Correct	1 ms	2644 KB	Output is correct
28	Correct	1 ms	2644 KB	Output is correct
29	Correct	1 ms	2644 KB	Output is correct
30	Correct	1 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	1 ms	2644 KB	Output is correct
36	Correct	1 ms	2644 KB	Output is correct
37	Correct	1 ms	2644 KB	Output is correct
38	Correct	1 ms	2644 KB	Output is correct
39	Correct	153 ms	21788 KB	Output is correct
40	Correct	145 ms	17352 KB	Output is correct
41	Correct	102 ms	15336 KB	Output is correct
42	Correct	20 ms	5332 KB	Output is correct
43	Correct	1 ms	2644 KB	Output is correct
44	Correct	1 ms	2644 KB	Output is correct
45	Correct	1 ms	2644 KB	Output is correct
46	Correct	1 ms	2644 KB	Output is correct
47	Correct	1 ms	2644 KB	Output is correct
48	Correct	1 ms	2644 KB	Output is correct
49	Correct	1 ms	2644 KB	Output is correct
50	Correct	2 ms	2644 KB	Output is correct
51	Correct	1 ms	2644 KB	Output is correct
52	Correct	1 ms	2644 KB	Output is correct
53	Correct	1 ms	2644 KB	Output is correct
54	Correct	1 ms	2644 KB	Output is correct
55	Correct	1 ms	2644 KB	Output is correct
56	Correct	1 ms	2644 KB	Output is correct
57	Correct	174 ms	9892 KB	Output is correct
58	Correct	197 ms	9888 KB	Output is correct
59	Correct	225 ms	9920 KB	Output is correct
60	Correct	212 ms	9828 KB	Output is correct
61	Correct	212 ms	9948 KB	Output is correct
62	Correct	175 ms	9708 KB	Output is correct
63	Correct	197 ms	9580 KB	Output is correct
64	Correct	203 ms	9652 KB	Output is correct
65	Correct	180 ms	9584 KB	Output is correct
66	Correct	181 ms	9568 KB	Output is correct
67	Correct	178 ms	9896 KB	Output is correct
68	Correct	179 ms	9828 KB	Output is correct
69	Correct	194 ms	9872 KB	Output is correct
70	Correct	209 ms	9904 KB	Output is correct
71	Correct	2 ms	2644 KB	Output is correct
72	Correct	7 ms	2860 KB	Output is correct
73	Correct	7 ms	2900 KB	Output is correct
74	Correct	5 ms	2916 KB	Output is correct
75	Correct	5 ms	2912 KB	Output is correct
76	Correct	5 ms	2920 KB	Output is correct
77	Correct	5 ms	2916 KB	Output is correct
78	Correct	5 ms	2900 KB	Output is correct
79	Correct	5 ms	2924 KB	Output is correct
80	Correct	177 ms	9804 KB	Output is correct
81	Correct	192 ms	9868 KB	Output is correct
82	Correct	195 ms	9832 KB	Output is correct
83	Correct	179 ms	9728 KB	Output is correct
84	Correct	3 ms	2880 KB	Output is correct
85	Correct	3 ms	2772 KB	Output is correct
86	Correct	5 ms	2888 KB	Output is correct
87	Correct	4 ms	2772 KB	Output is correct
88	Correct	6 ms	2772 KB	Output is correct
89	Correct	4 ms	2900 KB	Output is correct
90	Correct	5 ms	2772 KB	Output is correct
91	Correct	7 ms	2900 KB	Output is correct
92	Correct	5 ms	2900 KB	Output is correct
93	Correct	5 ms	2772 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	1 ms	2644 KB	Output is correct
98	Correct	1 ms	2644 KB	Output is correct
99	Correct	1 ms	2644 KB	Output is correct
100	Correct	2 ms	2644 KB	Output is correct
101	Correct	1 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	15 ms	3964 KB	Output is correct
105	Correct	41 ms	5852 KB	Output is correct
106	Correct	2 ms	2644 KB	Output is correct
107	Correct	64 ms	9296 KB	Output is correct
108	Correct	93 ms	12440 KB	Output is correct
109	Correct	2 ms	2772 KB	Output is correct
110	Correct	119 ms	12344 KB	Output is correct
111	Correct	135 ms	16256 KB	Output is correct
112	Correct	2 ms	2772 KB	Output is correct
113	Correct	206 ms	26176 KB	Output is correct

Subtask #4
0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	173 ms	9812 KB	Output is correct
2	Incorrect	151 ms	9848 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #5
0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2644 KB	Output is correct
2	Correct	1 ms	2644 KB	Output is correct
3	Correct	1 ms	2644 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	2644 KB	Output is correct
7	Correct	1 ms	2644 KB	Output is correct
8	Correct	2 ms	2644 KB	Output is correct
9	Correct	1 ms	2644 KB	Output is correct
10	Correct	1 ms	2644 KB	Output is correct
11	Correct	1 ms	2644 KB	Output is correct
12	Correct	1 ms	2644 KB	Output is correct
13	Correct	1 ms	2644 KB	Output is correct
14	Correct	1 ms	2644 KB	Output is correct
15	Correct	1 ms	2644 KB	Output is correct
16	Correct	1 ms	2644 KB	Output is correct
17	Correct	1 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	1 ms	2644 KB	Output is correct
23	Correct	1 ms	2644 KB	Output is correct
24	Correct	1 ms	2644 KB	Output is correct
25	Correct	1 ms	2644 KB	Output is correct
26	Correct	3 ms	2644 KB	Output is correct
27	Correct	4 ms	2828 KB	Output is correct
28	Correct	6 ms	2920 KB	Output is correct
29	Incorrect	3 ms	2644 KB	Output isn't correct
30	Halted	0 ms	0 KB	-

Subtask #6
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	155 ms	21888 KB	Output is correct
2	Correct	164 ms	17436 KB	Output is correct
3	Correct	101 ms	15212 KB	Output is correct
4	Correct	20 ms	5388 KB	Output is correct
5	Correct	16 ms	3952 KB	Output is correct
6	Correct	33 ms	5932 KB	Output is correct
7	Correct	1 ms	2644 KB	Output is correct
8	Correct	76 ms	9184 KB	Output is correct
9	Correct	82 ms	12436 KB	Output is correct
10	Correct	2 ms	2772 KB	Output is correct
11	Correct	125 ms	12428 KB	Output is correct
12	Correct	149 ms	16240 KB	Output is correct
13	Correct	3 ms	2772 KB	Output is correct
14	Correct	1 ms	2644 KB	Output is correct
15	Correct	1 ms	2644 KB	Output is correct
16	Correct	1 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	1 ms	2644 KB	Output is correct
21	Correct	2 ms	2644 KB	Output is correct
22	Correct	1 ms	2644 KB	Output is correct
23	Correct	1 ms	2644 KB	Output is correct
24	Correct	1 ms	2644 KB	Output is correct
25	Correct	1 ms	2644 KB	Output is correct
26	Correct	1 ms	2644 KB	Output is correct
27	Correct	1 ms	2644 KB	Output is correct
28	Correct	1 ms	2644 KB	Output is correct
29	Correct	1 ms	2644 KB	Output is correct
30	Correct	1 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	1 ms	2644 KB	Output is correct
36	Correct	1 ms	2644 KB	Output is correct
37	Correct	1 ms	2644 KB	Output is correct
38	Correct	1 ms	2644 KB	Output is correct
39	Correct	153 ms	21788 KB	Output is correct
40	Correct	145 ms	17352 KB	Output is correct
41	Correct	102 ms	15336 KB	Output is correct
42	Correct	20 ms	5332 KB	Output is correct
43	Correct	1 ms	2644 KB	Output is correct
44	Correct	1 ms	2644 KB	Output is correct
45	Correct	1 ms	2644 KB	Output is correct
46	Correct	1 ms	2644 KB	Output is correct
47	Correct	1 ms	2644 KB	Output is correct
48	Correct	1 ms	2644 KB	Output is correct
49	Correct	1 ms	2644 KB	Output is correct
50	Correct	2 ms	2644 KB	Output is correct
51	Correct	1 ms	2644 KB	Output is correct
52	Correct	1 ms	2644 KB	Output is correct
53	Correct	1 ms	2644 KB	Output is correct
54	Correct	1 ms	2644 KB	Output is correct
55	Correct	1 ms	2644 KB	Output is correct
56	Correct	1 ms	2644 KB	Output is correct
57	Correct	174 ms	9892 KB	Output is correct
58	Correct	197 ms	9888 KB	Output is correct
59	Correct	225 ms	9920 KB	Output is correct
60	Correct	212 ms	9828 KB	Output is correct
61	Correct	212 ms	9948 KB	Output is correct
62	Correct	175 ms	9708 KB	Output is correct
63	Correct	197 ms	9580 KB	Output is correct
64	Correct	203 ms	9652 KB	Output is correct
65	Correct	180 ms	9584 KB	Output is correct
66	Correct	181 ms	9568 KB	Output is correct
67	Correct	178 ms	9896 KB	Output is correct
68	Correct	179 ms	9828 KB	Output is correct
69	Correct	194 ms	9872 KB	Output is correct
70	Correct	209 ms	9904 KB	Output is correct
71	Correct	2 ms	2644 KB	Output is correct
72	Correct	7 ms	2860 KB	Output is correct
73	Correct	7 ms	2900 KB	Output is correct
74	Correct	5 ms	2916 KB	Output is correct
75	Correct	5 ms	2912 KB	Output is correct
76	Correct	5 ms	2920 KB	Output is correct
77	Correct	5 ms	2916 KB	Output is correct
78	Correct	5 ms	2900 KB	Output is correct
79	Correct	5 ms	2924 KB	Output is correct
80	Correct	177 ms	9804 KB	Output is correct
81	Correct	192 ms	9868 KB	Output is correct
82	Correct	195 ms	9832 KB	Output is correct
83	Correct	179 ms	9728 KB	Output is correct
84	Correct	3 ms	2880 KB	Output is correct
85	Correct	3 ms	2772 KB	Output is correct
86	Correct	5 ms	2888 KB	Output is correct
87	Correct	4 ms	2772 KB	Output is correct
88	Correct	6 ms	2772 KB	Output is correct
89	Correct	4 ms	2900 KB	Output is correct
90	Correct	5 ms	2772 KB	Output is correct
91	Correct	7 ms	2900 KB	Output is correct
92	Correct	5 ms	2900 KB	Output is correct
93	Correct	5 ms	2772 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	1 ms	2644 KB	Output is correct
98	Correct	1 ms	2644 KB	Output is correct
99	Correct	1 ms	2644 KB	Output is correct
100	Correct	2 ms	2644 KB	Output is correct
101	Correct	1 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	15 ms	3964 KB	Output is correct
105	Correct	41 ms	5852 KB	Output is correct
106	Correct	2 ms	2644 KB	Output is correct
107	Correct	64 ms	9296 KB	Output is correct
108	Correct	93 ms	12440 KB	Output is correct
109	Correct	2 ms	2772 KB	Output is correct
110	Correct	119 ms	12344 KB	Output is correct
111	Correct	135 ms	16256 KB	Output is correct
112	Correct	2 ms	2772 KB	Output is correct
113	Correct	206 ms	26176 KB	Output is correct
114	Correct	173 ms	9812 KB	Output is correct
115	Incorrect	151 ms	9848 KB	Output isn't correct
116	Halted	0 ms	0 KB	-

답안 #812598

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