답안 #212650

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
212650	2020-03-23T22:38:10 Z	Dan13llljws	경주 (Race) (IOI11_race)	C++14	100 / 100	1385 ms	38776 KB

race

#include <bits/stdc++.h>
using namespace std;
#define INF 0x3f3f3f3f
#define sp ' '
#define nl '\n'
void sc(){}template<class T,class...A>void sc(T&t,A&...a){cin>>t,sc(a...);}
void pr(){}template<class T,class...A>void pr(T t,A...a){cout<<t,pr(a...);}
#define ms(x, y) memset(x, y, sizeof(x))
#define sz(x) (int)(x.size())
#define af(x) x.begin(), x.end()
#define mp make_pair
#define pb push_back
#define f first
#define s second
const int mod = 1e9 + 7, base = 131;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> pii;
const int MM = 2e5 + 5;
int M, w[MM], ans = INF; bool vis[MM];
vector<pii> adj[MM];
map<int, int> cnt, tmp;
void get_weight(int src, int par){
	w[src] = 1;
	for (auto v : adj[src]){
		if (v.s == par || vis[v.s]) continue;
		get_weight(v.s, src);
		w[src] += w[v.s];
	}
}
int get_cent(int src, int par, int wt){
	for (auto v : adj[src]){
		if (v.s == par || vis[v.s]) continue;
		if (w[v.s] * 2 > wt) return get_cent(v.s, src, wt);
	}
	return  src;
}
void proc_subtree(int src, int par, int d, int dep){
    if (d > M) return;
	if (d == M) ans = min(ans, dep);
	if (!tmp.count(d)) tmp[d] = dep;
	else tmp[d] = min(tmp[d], dep);
	if (cnt.count(M - d)) ans = min(ans, cnt[M - d] + dep);
	for (auto v : adj[src]){
		if (v.s == par || vis[v.s]) continue;
		proc_subtree(v.s, src, d + v.f, dep + 1);
	}
}
void get_ans(int src){
	cnt.clear(); 
	for (auto v : adj[src]){
		if (vis[v.s]) continue;
		tmp.clear();
		proc_subtree(v.s, src, v.f, 1);
		for (auto m : tmp){
			if (!cnt.count(m.f)) cnt[m.f] = m.s;
			else cnt[m.f] = min(cnt[m.f], m.s);
		}
	}
}
void decomp(int src){
	vis[src] = 1;
	get_ans(src);
	for (auto v : adj[src]){
		if (vis[v.s]) continue;
		get_weight(v.s, src);
		decomp(get_cent(v.s, src, w[v.s]));
	}
}
int best_path(int N, int K, int H[][2], int L[]){
	M = K;
	for (int i = 0; i < N - 1; i++){
		int a = H[i][0], b = H[i][1], c = L[i];
		adj[a].pb(mp(c, b)); adj[b].pb(mp(c, a));
	}
	get_weight(1, 1);
	decomp(get_cent(1, 1, N));
	return ans == INF ? -1 : ans;
}

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	5120 KB	Output is correct
2	Correct	7 ms	5120 KB	Output is correct
3	Correct	7 ms	4992 KB	Output is correct
4	Correct	7 ms	5120 KB	Output is correct
5	Correct	7 ms	4992 KB	Output is correct
6	Correct	7 ms	4992 KB	Output is correct
7	Correct	7 ms	4992 KB	Output is correct
8	Correct	7 ms	4992 KB	Output is correct
9	Correct	7 ms	5120 KB	Output is correct
10	Correct	7 ms	4992 KB	Output is correct
11	Correct	7 ms	4992 KB	Output is correct
12	Correct	7 ms	4992 KB	Output is correct
13	Correct	7 ms	4992 KB	Output is correct
14	Correct	7 ms	4992 KB	Output is correct
15	Correct	7 ms	4992 KB	Output is correct
16	Correct	7 ms	4992 KB	Output is correct
17	Correct	7 ms	5120 KB	Output is correct
18	Correct	7 ms	4992 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	5120 KB	Output is correct
2	Correct	7 ms	5120 KB	Output is correct
3	Correct	7 ms	4992 KB	Output is correct
4	Correct	7 ms	5120 KB	Output is correct
5	Correct	7 ms	4992 KB	Output is correct
6	Correct	7 ms	4992 KB	Output is correct
7	Correct	7 ms	4992 KB	Output is correct
8	Correct	7 ms	4992 KB	Output is correct
9	Correct	7 ms	5120 KB	Output is correct
10	Correct	7 ms	4992 KB	Output is correct
11	Correct	7 ms	4992 KB	Output is correct
12	Correct	7 ms	4992 KB	Output is correct
13	Correct	7 ms	4992 KB	Output is correct
14	Correct	7 ms	4992 KB	Output is correct
15	Correct	7 ms	4992 KB	Output is correct
16	Correct	7 ms	4992 KB	Output is correct
17	Correct	7 ms	5120 KB	Output is correct
18	Correct	7 ms	4992 KB	Output is correct
19	Correct	7 ms	5120 KB	Output is correct
20	Correct	7 ms	4992 KB	Output is correct
21	Correct	9 ms	5120 KB	Output is correct
22	Correct	8 ms	5120 KB	Output is correct
23	Correct	8 ms	5120 KB	Output is correct
24	Correct	8 ms	5120 KB	Output is correct
25	Correct	9 ms	5120 KB	Output is correct
26	Correct	8 ms	5120 KB	Output is correct
27	Correct	8 ms	5120 KB	Output is correct
28	Correct	9 ms	5120 KB	Output is correct
29	Correct	9 ms	5120 KB	Output is correct
30	Correct	9 ms	5120 KB	Output is correct
31	Correct	9 ms	5120 KB	Output is correct
32	Correct	9 ms	5120 KB	Output is correct
33	Correct	10 ms	5120 KB	Output is correct
34	Correct	9 ms	5120 KB	Output is correct
35	Correct	9 ms	5120 KB	Output is correct
36	Correct	8 ms	5120 KB	Output is correct
37	Correct	9 ms	5120 KB	Output is correct
38	Correct	9 ms	5168 KB	Output is correct

Subtask #3
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	5120 KB	Output is correct
2	Correct	7 ms	5120 KB	Output is correct
3	Correct	7 ms	4992 KB	Output is correct
4	Correct	7 ms	5120 KB	Output is correct
5	Correct	7 ms	4992 KB	Output is correct
6	Correct	7 ms	4992 KB	Output is correct
7	Correct	7 ms	4992 KB	Output is correct
8	Correct	7 ms	4992 KB	Output is correct
9	Correct	7 ms	5120 KB	Output is correct
10	Correct	7 ms	4992 KB	Output is correct
11	Correct	7 ms	4992 KB	Output is correct
12	Correct	7 ms	4992 KB	Output is correct
13	Correct	7 ms	4992 KB	Output is correct
14	Correct	7 ms	4992 KB	Output is correct
15	Correct	7 ms	4992 KB	Output is correct
16	Correct	7 ms	4992 KB	Output is correct
17	Correct	7 ms	5120 KB	Output is correct
18	Correct	7 ms	4992 KB	Output is correct
19	Correct	262 ms	11860 KB	Output is correct
20	Correct	259 ms	11896 KB	Output is correct
21	Correct	265 ms	11768 KB	Output is correct
22	Correct	259 ms	12024 KB	Output is correct
23	Correct	113 ms	12152 KB	Output is correct
24	Correct	105 ms	11896 KB	Output is correct
25	Correct	169 ms	16904 KB	Output is correct
26	Correct	119 ms	17400 KB	Output is correct
27	Correct	268 ms	18808 KB	Output is correct
28	Correct	325 ms	29308 KB	Output is correct
29	Correct	313 ms	25208 KB	Output is correct
30	Correct	268 ms	18808 KB	Output is correct
31	Correct	278 ms	18904 KB	Output is correct
32	Correct	287 ms	18936 KB	Output is correct
33	Correct	443 ms	17784 KB	Output is correct
34	Correct	202 ms	18552 KB	Output is correct

Subtask #4
57.0 / 57.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	5120 KB	Output is correct
2	Correct	7 ms	5120 KB	Output is correct
3	Correct	7 ms	4992 KB	Output is correct
4	Correct	7 ms	5120 KB	Output is correct
5	Correct	7 ms	4992 KB	Output is correct
6	Correct	7 ms	4992 KB	Output is correct
7	Correct	7 ms	4992 KB	Output is correct
8	Correct	7 ms	4992 KB	Output is correct
9	Correct	7 ms	5120 KB	Output is correct
10	Correct	7 ms	4992 KB	Output is correct
11	Correct	7 ms	4992 KB	Output is correct
12	Correct	7 ms	4992 KB	Output is correct
13	Correct	7 ms	4992 KB	Output is correct
14	Correct	7 ms	4992 KB	Output is correct
15	Correct	7 ms	4992 KB	Output is correct
16	Correct	7 ms	4992 KB	Output is correct
17	Correct	7 ms	5120 KB	Output is correct
18	Correct	7 ms	4992 KB	Output is correct
19	Correct	7 ms	5120 KB	Output is correct
20	Correct	7 ms	4992 KB	Output is correct
21	Correct	9 ms	5120 KB	Output is correct
22	Correct	8 ms	5120 KB	Output is correct
23	Correct	8 ms	5120 KB	Output is correct
24	Correct	8 ms	5120 KB	Output is correct
25	Correct	9 ms	5120 KB	Output is correct
26	Correct	8 ms	5120 KB	Output is correct
27	Correct	8 ms	5120 KB	Output is correct
28	Correct	9 ms	5120 KB	Output is correct
29	Correct	9 ms	5120 KB	Output is correct
30	Correct	9 ms	5120 KB	Output is correct
31	Correct	9 ms	5120 KB	Output is correct
32	Correct	9 ms	5120 KB	Output is correct
33	Correct	10 ms	5120 KB	Output is correct
34	Correct	9 ms	5120 KB	Output is correct
35	Correct	9 ms	5120 KB	Output is correct
36	Correct	8 ms	5120 KB	Output is correct
37	Correct	9 ms	5120 KB	Output is correct
38	Correct	9 ms	5168 KB	Output is correct
39	Correct	262 ms	11860 KB	Output is correct
40	Correct	259 ms	11896 KB	Output is correct
41	Correct	265 ms	11768 KB	Output is correct
42	Correct	259 ms	12024 KB	Output is correct
43	Correct	113 ms	12152 KB	Output is correct
44	Correct	105 ms	11896 KB	Output is correct
45	Correct	169 ms	16904 KB	Output is correct
46	Correct	119 ms	17400 KB	Output is correct
47	Correct	268 ms	18808 KB	Output is correct
48	Correct	325 ms	29308 KB	Output is correct
49	Correct	313 ms	25208 KB	Output is correct
50	Correct	268 ms	18808 KB	Output is correct
51	Correct	278 ms	18904 KB	Output is correct
52	Correct	287 ms	18936 KB	Output is correct
53	Correct	443 ms	17784 KB	Output is correct
54	Correct	202 ms	18552 KB	Output is correct
55	Correct	33 ms	5888 KB	Output is correct
56	Correct	24 ms	5752 KB	Output is correct
57	Correct	193 ms	12132 KB	Output is correct
58	Correct	62 ms	11756 KB	Output is correct
59	Correct	516 ms	23288 KB	Output is correct
60	Correct	1385 ms	38776 KB	Output is correct
61	Correct	392 ms	19320 KB	Output is correct
62	Correct	414 ms	19064 KB	Output is correct
63	Correct	494 ms	19192 KB	Output is correct
64	Correct	1374 ms	25848 KB	Output is correct
65	Correct	257 ms	19960 KB	Output is correct
66	Correct	875 ms	28792 KB	Output is correct
67	Correct	155 ms	19620 KB	Output is correct
68	Correct	542 ms	23288 KB	Output is correct
69	Correct	545 ms	23288 KB	Output is correct
70	Correct	512 ms	22520 KB	Output is correct

답안 #212650

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 12.0 / 12.0

Subtask #3 22.0 / 22.0

Subtask #4 57.0 / 57.0

Subtask #1
9.0 / 9.0

Subtask #2
12.0 / 12.0

Subtask #3
22.0 / 22.0

Subtask #4
57.0 / 57.0