답안 #992414

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
992414	2024-06-04T12:18:05 Z	AbodeKu	경주 (Race) (IOI11_race)	C++17	100 / 100	364 ms	108624 KB

race

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<ll, ll> pii;

#define pb push_back

#define f first
#define s second

const int maxn = 2e5 + 1;
vector<pii> adj[maxn];
map<ll, ll> info[maxn];
ll dist[maxn], sum[maxn];  // define these relative to root
int N, K;
ll ret;

void precomp(int u, int p, ll c, int h) {
	info[u][c] = h;
	sum[u] = c;
	dist[u] = h;
	for (auto n : adj[u]) {
		if (p == n.f) { continue; }
		precomp(n.f, u, c + n.s, h + 1);
	}
}

void small_to_large_merge(int u, int p) {
	ll target = K + 2 * sum[u];
	for (auto n : adj[u]) {
		if (n.f == p) { continue; }
		small_to_large_merge(n.f, u);
		if (info[n.f].size() > info[u].size()) { swap(info[n.f], info[u]); }
		for (auto i : info[n.f]) {
			if (info[u].find(target - i.f) != info[u].end()) {
				ret = min(ret, info[u][target - i.f] + i.s - 2 * dist[u]);
			}
		}
		for (auto i : info[n.f]) {
			if (info[u].find(i.f) == info[u].end()) {
				info[u].insert(i);
			} else {
				info[u][i.f] = min(info[u][i.f], i.s);
			}
		}
	}
}

int best_path(int n, int k, int edges[][2], int weights[]) {
	if (k == 1) { return 0; }
	N = n;
	K = k;
	ret = INT_MAX;
	for (int i = 0; i < n - 1; i++) {
		int u = edges[i][0];
		int v = edges[i][1];
		adj[u].pb(pii(v, weights[i]));
		adj[v].pb(pii(u, weights[i]));
	}
	precomp(0, -1, 0, 0);
	small_to_large_merge(0, -1);
	return ret == INT_MAX ? -1 : ret;
}

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	21340 KB	Output is correct
2	Correct	3 ms	21084 KB	Output is correct
3	Correct	3 ms	21080 KB	Output is correct
4	Correct	3 ms	21296 KB	Output is correct
5	Correct	3 ms	21084 KB	Output is correct
6	Correct	3 ms	21340 KB	Output is correct
7	Correct	3 ms	21340 KB	Output is correct
8	Correct	3 ms	21340 KB	Output is correct
9	Correct	3 ms	21084 KB	Output is correct
10	Correct	3 ms	21264 KB	Output is correct
11	Correct	3 ms	21084 KB	Output is correct
12	Correct	3 ms	21336 KB	Output is correct
13	Correct	3 ms	21084 KB	Output is correct
14	Correct	3 ms	21308 KB	Output is correct
15	Correct	3 ms	21084 KB	Output is correct
16	Correct	3 ms	21340 KB	Output is correct
17	Correct	3 ms	21340 KB	Output is correct
18	Correct	3 ms	21084 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	21340 KB	Output is correct
2	Correct	3 ms	21084 KB	Output is correct
3	Correct	3 ms	21080 KB	Output is correct
4	Correct	3 ms	21296 KB	Output is correct
5	Correct	3 ms	21084 KB	Output is correct
6	Correct	3 ms	21340 KB	Output is correct
7	Correct	3 ms	21340 KB	Output is correct
8	Correct	3 ms	21340 KB	Output is correct
9	Correct	3 ms	21084 KB	Output is correct
10	Correct	3 ms	21264 KB	Output is correct
11	Correct	3 ms	21084 KB	Output is correct
12	Correct	3 ms	21336 KB	Output is correct
13	Correct	3 ms	21084 KB	Output is correct
14	Correct	3 ms	21308 KB	Output is correct
15	Correct	3 ms	21084 KB	Output is correct
16	Correct	3 ms	21340 KB	Output is correct
17	Correct	3 ms	21340 KB	Output is correct
18	Correct	3 ms	21084 KB	Output is correct
19	Correct	3 ms	21088 KB	Output is correct
20	Correct	3 ms	21088 KB	Output is correct
21	Correct	4 ms	21336 KB	Output is correct
22	Correct	4 ms	21596 KB	Output is correct
23	Correct	3 ms	21848 KB	Output is correct
24	Correct	4 ms	21596 KB	Output is correct
25	Correct	4 ms	21600 KB	Output is correct
26	Correct	4 ms	21596 KB	Output is correct
27	Correct	3 ms	21340 KB	Output is correct
28	Correct	5 ms	21596 KB	Output is correct
29	Correct	5 ms	21596 KB	Output is correct
30	Correct	4 ms	21596 KB	Output is correct
31	Correct	4 ms	21596 KB	Output is correct
32	Correct	4 ms	21536 KB	Output is correct
33	Correct	4 ms	21596 KB	Output is correct
34	Correct	4 ms	21340 KB	Output is correct
35	Correct	4 ms	21340 KB	Output is correct
36	Correct	4 ms	21340 KB	Output is correct
37	Correct	4 ms	21340 KB	Output is correct
38	Correct	3 ms	21340 KB	Output is correct

Subtask #3
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	21340 KB	Output is correct
2	Correct	3 ms	21084 KB	Output is correct
3	Correct	3 ms	21080 KB	Output is correct
4	Correct	3 ms	21296 KB	Output is correct
5	Correct	3 ms	21084 KB	Output is correct
6	Correct	3 ms	21340 KB	Output is correct
7	Correct	3 ms	21340 KB	Output is correct
8	Correct	3 ms	21340 KB	Output is correct
9	Correct	3 ms	21084 KB	Output is correct
10	Correct	3 ms	21264 KB	Output is correct
11	Correct	3 ms	21084 KB	Output is correct
12	Correct	3 ms	21336 KB	Output is correct
13	Correct	3 ms	21084 KB	Output is correct
14	Correct	3 ms	21308 KB	Output is correct
15	Correct	3 ms	21084 KB	Output is correct
16	Correct	3 ms	21340 KB	Output is correct
17	Correct	3 ms	21340 KB	Output is correct
18	Correct	3 ms	21084 KB	Output is correct
19	Correct	91 ms	44164 KB	Output is correct
20	Correct	86 ms	45136 KB	Output is correct
21	Correct	83 ms	44512 KB	Output is correct
22	Correct	90 ms	44840 KB	Output is correct
23	Correct	128 ms	57676 KB	Output is correct
24	Correct	88 ms	47696 KB	Output is correct
25	Correct	73 ms	46160 KB	Output is correct
26	Correct	49 ms	53912 KB	Output is correct
27	Correct	150 ms	54864 KB	Output is correct
28	Correct	225 ms	97108 KB	Output is correct
29	Correct	233 ms	95824 KB	Output is correct
30	Correct	146 ms	55632 KB	Output is correct
31	Correct	146 ms	55380 KB	Output is correct
32	Correct	192 ms	55448 KB	Output is correct
33	Correct	166 ms	60500 KB	Output is correct
34	Correct	257 ms	92752 KB	Output is correct

Subtask #4
57.0 / 57.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	21340 KB	Output is correct
2	Correct	3 ms	21084 KB	Output is correct
3	Correct	3 ms	21080 KB	Output is correct
4	Correct	3 ms	21296 KB	Output is correct
5	Correct	3 ms	21084 KB	Output is correct
6	Correct	3 ms	21340 KB	Output is correct
7	Correct	3 ms	21340 KB	Output is correct
8	Correct	3 ms	21340 KB	Output is correct
9	Correct	3 ms	21084 KB	Output is correct
10	Correct	3 ms	21264 KB	Output is correct
11	Correct	3 ms	21084 KB	Output is correct
12	Correct	3 ms	21336 KB	Output is correct
13	Correct	3 ms	21084 KB	Output is correct
14	Correct	3 ms	21308 KB	Output is correct
15	Correct	3 ms	21084 KB	Output is correct
16	Correct	3 ms	21340 KB	Output is correct
17	Correct	3 ms	21340 KB	Output is correct
18	Correct	3 ms	21084 KB	Output is correct
19	Correct	3 ms	21088 KB	Output is correct
20	Correct	3 ms	21088 KB	Output is correct
21	Correct	4 ms	21336 KB	Output is correct
22	Correct	4 ms	21596 KB	Output is correct
23	Correct	3 ms	21848 KB	Output is correct
24	Correct	4 ms	21596 KB	Output is correct
25	Correct	4 ms	21600 KB	Output is correct
26	Correct	4 ms	21596 KB	Output is correct
27	Correct	3 ms	21340 KB	Output is correct
28	Correct	5 ms	21596 KB	Output is correct
29	Correct	5 ms	21596 KB	Output is correct
30	Correct	4 ms	21596 KB	Output is correct
31	Correct	4 ms	21596 KB	Output is correct
32	Correct	4 ms	21536 KB	Output is correct
33	Correct	4 ms	21596 KB	Output is correct
34	Correct	4 ms	21340 KB	Output is correct
35	Correct	4 ms	21340 KB	Output is correct
36	Correct	4 ms	21340 KB	Output is correct
37	Correct	4 ms	21340 KB	Output is correct
38	Correct	3 ms	21340 KB	Output is correct
39	Correct	91 ms	44164 KB	Output is correct
40	Correct	86 ms	45136 KB	Output is correct
41	Correct	83 ms	44512 KB	Output is correct
42	Correct	90 ms	44840 KB	Output is correct
43	Correct	128 ms	57676 KB	Output is correct
44	Correct	88 ms	47696 KB	Output is correct
45	Correct	73 ms	46160 KB	Output is correct
46	Correct	49 ms	53912 KB	Output is correct
47	Correct	150 ms	54864 KB	Output is correct
48	Correct	225 ms	97108 KB	Output is correct
49	Correct	233 ms	95824 KB	Output is correct
50	Correct	146 ms	55632 KB	Output is correct
51	Correct	146 ms	55380 KB	Output is correct
52	Correct	192 ms	55448 KB	Output is correct
53	Correct	166 ms	60500 KB	Output is correct
54	Correct	257 ms	92752 KB	Output is correct
55	Correct	12 ms	24408 KB	Output is correct
56	Correct	8 ms	22872 KB	Output is correct
57	Correct	45 ms	41820 KB	Output is correct
58	Correct	35 ms	35532 KB	Output is correct
59	Correct	72 ms	60228 KB	Output is correct
60	Correct	212 ms	95828 KB	Output is correct
61	Correct	184 ms	58196 KB	Output is correct
62	Correct	141 ms	55380 KB	Output is correct
63	Correct	179 ms	55384 KB	Output is correct
64	Correct	364 ms	108624 KB	Output is correct
65	Correct	346 ms	108492 KB	Output is correct
66	Correct	234 ms	89424 KB	Output is correct
67	Correct	110 ms	49644 KB	Output is correct
68	Correct	262 ms	71504 KB	Output is correct
69	Correct	305 ms	73812 KB	Output is correct
70	Correct	253 ms	69716 KB	Output is correct

답안 #992414

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