답안 #966926

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
966926	2024-04-20T16:02:59 Z	jhinezeal123	경주 (Race) (IOI11_race)	C++17	100 / 100	434 ms	108628 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	5 ms	21340 KB	Output is correct
2	Correct	4 ms	21340 KB	Output is correct
3	Correct	5 ms	21340 KB	Output is correct
4	Correct	5 ms	21084 KB	Output is correct
5	Correct	4 ms	21080 KB	Output is correct
6	Correct	4 ms	21300 KB	Output is correct
7	Correct	4 ms	21084 KB	Output is correct
8	Correct	4 ms	21340 KB	Output is correct
9	Correct	4 ms	21080 KB	Output is correct
10	Correct	5 ms	21336 KB	Output is correct
11	Correct	4 ms	21336 KB	Output is correct
12	Correct	4 ms	21272 KB	Output is correct
13	Correct	5 ms	21080 KB	Output is correct
14	Correct	4 ms	21340 KB	Output is correct
15	Correct	4 ms	21084 KB	Output is correct
16	Correct	4 ms	21084 KB	Output is correct
17	Correct	4 ms	21084 KB	Output is correct
18	Correct	4 ms	21084 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	21340 KB	Output is correct
2	Correct	4 ms	21340 KB	Output is correct
3	Correct	5 ms	21340 KB	Output is correct
4	Correct	5 ms	21084 KB	Output is correct
5	Correct	4 ms	21080 KB	Output is correct
6	Correct	4 ms	21300 KB	Output is correct
7	Correct	4 ms	21084 KB	Output is correct
8	Correct	4 ms	21340 KB	Output is correct
9	Correct	4 ms	21080 KB	Output is correct
10	Correct	5 ms	21336 KB	Output is correct
11	Correct	4 ms	21336 KB	Output is correct
12	Correct	4 ms	21272 KB	Output is correct
13	Correct	5 ms	21080 KB	Output is correct
14	Correct	4 ms	21340 KB	Output is correct
15	Correct	4 ms	21084 KB	Output is correct
16	Correct	4 ms	21084 KB	Output is correct
17	Correct	4 ms	21084 KB	Output is correct
18	Correct	4 ms	21084 KB	Output is correct
19	Correct	4 ms	21080 KB	Output is correct
20	Correct	4 ms	21084 KB	Output is correct
21	Correct	5 ms	21340 KB	Output is correct
22	Correct	6 ms	21596 KB	Output is correct
23	Correct	6 ms	21596 KB	Output is correct
24	Correct	5 ms	21596 KB	Output is correct
25	Correct	5 ms	21596 KB	Output is correct
26	Correct	5 ms	21596 KB	Output is correct
27	Correct	5 ms	21300 KB	Output is correct
28	Correct	6 ms	21376 KB	Output is correct
29	Correct	5 ms	21608 KB	Output is correct
30	Correct	5 ms	21596 KB	Output is correct
31	Correct	6 ms	21596 KB	Output is correct
32	Correct	5 ms	21536 KB	Output is correct
33	Correct	6 ms	21596 KB	Output is correct
34	Correct	5 ms	21340 KB	Output is correct
35	Correct	6 ms	21340 KB	Output is correct
36	Correct	5 ms	21340 KB	Output is correct
37	Correct	5 ms	21340 KB	Output is correct
38	Correct	5 ms	21340 KB	Output is correct

Subtask #3
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	21340 KB	Output is correct
2	Correct	4 ms	21340 KB	Output is correct
3	Correct	5 ms	21340 KB	Output is correct
4	Correct	5 ms	21084 KB	Output is correct
5	Correct	4 ms	21080 KB	Output is correct
6	Correct	4 ms	21300 KB	Output is correct
7	Correct	4 ms	21084 KB	Output is correct
8	Correct	4 ms	21340 KB	Output is correct
9	Correct	4 ms	21080 KB	Output is correct
10	Correct	5 ms	21336 KB	Output is correct
11	Correct	4 ms	21336 KB	Output is correct
12	Correct	4 ms	21272 KB	Output is correct
13	Correct	5 ms	21080 KB	Output is correct
14	Correct	4 ms	21340 KB	Output is correct
15	Correct	4 ms	21084 KB	Output is correct
16	Correct	4 ms	21084 KB	Output is correct
17	Correct	4 ms	21084 KB	Output is correct
18	Correct	4 ms	21084 KB	Output is correct
19	Correct	106 ms	44368 KB	Output is correct
20	Correct	112 ms	45140 KB	Output is correct
21	Correct	103 ms	44628 KB	Output is correct
22	Correct	108 ms	44748 KB	Output is correct
23	Correct	136 ms	57744 KB	Output is correct
24	Correct	109 ms	47700 KB	Output is correct
25	Correct	99 ms	46124 KB	Output is correct
26	Correct	55 ms	53872 KB	Output is correct
27	Correct	173 ms	55148 KB	Output is correct
28	Correct	263 ms	97104 KB	Output is correct
29	Correct	259 ms	95472 KB	Output is correct
30	Correct	171 ms	55528 KB	Output is correct
31	Correct	164 ms	55516 KB	Output is correct
32	Correct	251 ms	55344 KB	Output is correct
33	Correct	225 ms	60500 KB	Output is correct
34	Correct	310 ms	92716 KB	Output is correct

Subtask #4
57.0 / 57.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	21340 KB	Output is correct
2	Correct	4 ms	21340 KB	Output is correct
3	Correct	5 ms	21340 KB	Output is correct
4	Correct	5 ms	21084 KB	Output is correct
5	Correct	4 ms	21080 KB	Output is correct
6	Correct	4 ms	21300 KB	Output is correct
7	Correct	4 ms	21084 KB	Output is correct
8	Correct	4 ms	21340 KB	Output is correct
9	Correct	4 ms	21080 KB	Output is correct
10	Correct	5 ms	21336 KB	Output is correct
11	Correct	4 ms	21336 KB	Output is correct
12	Correct	4 ms	21272 KB	Output is correct
13	Correct	5 ms	21080 KB	Output is correct
14	Correct	4 ms	21340 KB	Output is correct
15	Correct	4 ms	21084 KB	Output is correct
16	Correct	4 ms	21084 KB	Output is correct
17	Correct	4 ms	21084 KB	Output is correct
18	Correct	4 ms	21084 KB	Output is correct
19	Correct	4 ms	21080 KB	Output is correct
20	Correct	4 ms	21084 KB	Output is correct
21	Correct	5 ms	21340 KB	Output is correct
22	Correct	6 ms	21596 KB	Output is correct
23	Correct	6 ms	21596 KB	Output is correct
24	Correct	5 ms	21596 KB	Output is correct
25	Correct	5 ms	21596 KB	Output is correct
26	Correct	5 ms	21596 KB	Output is correct
27	Correct	5 ms	21300 KB	Output is correct
28	Correct	6 ms	21376 KB	Output is correct
29	Correct	5 ms	21608 KB	Output is correct
30	Correct	5 ms	21596 KB	Output is correct
31	Correct	6 ms	21596 KB	Output is correct
32	Correct	5 ms	21536 KB	Output is correct
33	Correct	6 ms	21596 KB	Output is correct
34	Correct	5 ms	21340 KB	Output is correct
35	Correct	6 ms	21340 KB	Output is correct
36	Correct	5 ms	21340 KB	Output is correct
37	Correct	5 ms	21340 KB	Output is correct
38	Correct	5 ms	21340 KB	Output is correct
39	Correct	106 ms	44368 KB	Output is correct
40	Correct	112 ms	45140 KB	Output is correct
41	Correct	103 ms	44628 KB	Output is correct
42	Correct	108 ms	44748 KB	Output is correct
43	Correct	136 ms	57744 KB	Output is correct
44	Correct	109 ms	47700 KB	Output is correct
45	Correct	99 ms	46124 KB	Output is correct
46	Correct	55 ms	53872 KB	Output is correct
47	Correct	173 ms	55148 KB	Output is correct
48	Correct	263 ms	97104 KB	Output is correct
49	Correct	259 ms	95472 KB	Output is correct
50	Correct	171 ms	55528 KB	Output is correct
51	Correct	164 ms	55516 KB	Output is correct
52	Correct	251 ms	55344 KB	Output is correct
53	Correct	225 ms	60500 KB	Output is correct
54	Correct	310 ms	92716 KB	Output is correct
55	Correct	16 ms	24412 KB	Output is correct
56	Correct	10 ms	22876 KB	Output is correct
57	Correct	57 ms	41704 KB	Output is correct
58	Correct	42 ms	35532 KB	Output is correct
59	Correct	87 ms	60360 KB	Output is correct
60	Correct	266 ms	96512 KB	Output is correct
61	Correct	190 ms	58192 KB	Output is correct
62	Correct	160 ms	55416 KB	Output is correct
63	Correct	255 ms	55584 KB	Output is correct
64	Correct	434 ms	108628 KB	Output is correct
65	Correct	398 ms	108624 KB	Output is correct
66	Correct	268 ms	89492 KB	Output is correct
67	Correct	153 ms	49332 KB	Output is correct
68	Correct	320 ms	71344 KB	Output is correct
69	Correct	350 ms	74060 KB	Output is correct
70	Correct	301 ms	69716 KB	Output is correct

답안 #966926

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