답안 #886412

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
886412	2023-12-12T04:33:43 Z	AgentPengin	경주 (Race) (IOI11_race)	C++14	100 / 100	406 ms	111416 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	21084 KB	Output is correct
2	Correct	4 ms	21340 KB	Output is correct
3	Correct	4 ms	21340 KB	Output is correct
4	Correct	4 ms	21340 KB	Output is correct
5	Correct	4 ms	21340 KB	Output is correct
6	Correct	4 ms	21224 KB	Output is correct
7	Correct	4 ms	21340 KB	Output is correct
8	Correct	4 ms	21340 KB	Output is correct
9	Correct	4 ms	21340 KB	Output is correct
10	Correct	4 ms	21336 KB	Output is correct
11	Correct	4 ms	21340 KB	Output is correct
12	Correct	5 ms	21340 KB	Output is correct
13	Correct	4 ms	21292 KB	Output is correct
14	Correct	5 ms	21336 KB	Output is correct
15	Correct	4 ms	21336 KB	Output is correct
16	Correct	4 ms	21340 KB	Output is correct
17	Correct	4 ms	21340 KB	Output is correct
18	Correct	4 ms	21340 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	21084 KB	Output is correct
2	Correct	4 ms	21340 KB	Output is correct
3	Correct	4 ms	21340 KB	Output is correct
4	Correct	4 ms	21340 KB	Output is correct
5	Correct	4 ms	21340 KB	Output is correct
6	Correct	4 ms	21224 KB	Output is correct
7	Correct	4 ms	21340 KB	Output is correct
8	Correct	4 ms	21340 KB	Output is correct
9	Correct	4 ms	21340 KB	Output is correct
10	Correct	4 ms	21336 KB	Output is correct
11	Correct	4 ms	21340 KB	Output is correct
12	Correct	5 ms	21340 KB	Output is correct
13	Correct	4 ms	21292 KB	Output is correct
14	Correct	5 ms	21336 KB	Output is correct
15	Correct	4 ms	21336 KB	Output is correct
16	Correct	4 ms	21340 KB	Output is correct
17	Correct	4 ms	21340 KB	Output is correct
18	Correct	4 ms	21340 KB	Output is correct
19	Correct	4 ms	21084 KB	Output is correct
20	Correct	4 ms	21084 KB	Output is correct
21	Correct	5 ms	21560 KB	Output is correct
22	Correct	5 ms	21596 KB	Output is correct
23	Correct	5 ms	21560 KB	Output is correct
24	Correct	5 ms	21388 KB	Output is correct
25	Correct	6 ms	21568 KB	Output is correct
26	Correct	7 ms	21596 KB	Output is correct
27	Correct	5 ms	21472 KB	Output is correct
28	Correct	5 ms	21592 KB	Output is correct
29	Correct	5 ms	21596 KB	Output is correct
30	Correct	5 ms	21532 KB	Output is correct
31	Correct	5 ms	21596 KB	Output is correct
32	Correct	5 ms	21596 KB	Output is correct
33	Correct	5 ms	21592 KB	Output is correct
34	Correct	5 ms	21340 KB	Output is correct
35	Correct	4 ms	21524 KB	Output is correct
36	Correct	6 ms	21340 KB	Output is correct
37	Correct	4 ms	21364 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	4 ms	21084 KB	Output is correct
2	Correct	4 ms	21340 KB	Output is correct
3	Correct	4 ms	21340 KB	Output is correct
4	Correct	4 ms	21340 KB	Output is correct
5	Correct	4 ms	21340 KB	Output is correct
6	Correct	4 ms	21224 KB	Output is correct
7	Correct	4 ms	21340 KB	Output is correct
8	Correct	4 ms	21340 KB	Output is correct
9	Correct	4 ms	21340 KB	Output is correct
10	Correct	4 ms	21336 KB	Output is correct
11	Correct	4 ms	21340 KB	Output is correct
12	Correct	5 ms	21340 KB	Output is correct
13	Correct	4 ms	21292 KB	Output is correct
14	Correct	5 ms	21336 KB	Output is correct
15	Correct	4 ms	21336 KB	Output is correct
16	Correct	4 ms	21340 KB	Output is correct
17	Correct	4 ms	21340 KB	Output is correct
18	Correct	4 ms	21340 KB	Output is correct
19	Correct	110 ms	45896 KB	Output is correct
20	Correct	116 ms	45560 KB	Output is correct
21	Correct	97 ms	45300 KB	Output is correct
22	Correct	103 ms	44840 KB	Output is correct
23	Correct	142 ms	57656 KB	Output is correct
24	Correct	101 ms	47740 KB	Output is correct
25	Correct	94 ms	46284 KB	Output is correct
26	Correct	55 ms	54616 KB	Output is correct
27	Correct	174 ms	56148 KB	Output is correct
28	Correct	252 ms	98460 KB	Output is correct
29	Correct	257 ms	96596 KB	Output is correct
30	Correct	173 ms	56268 KB	Output is correct
31	Correct	168 ms	56132 KB	Output is correct
32	Correct	243 ms	56404 KB	Output is correct
33	Correct	218 ms	61012 KB	Output is correct
34	Correct	311 ms	94032 KB	Output is correct

Subtask #4
57.0 / 57.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	21084 KB	Output is correct
2	Correct	4 ms	21340 KB	Output is correct
3	Correct	4 ms	21340 KB	Output is correct
4	Correct	4 ms	21340 KB	Output is correct
5	Correct	4 ms	21340 KB	Output is correct
6	Correct	4 ms	21224 KB	Output is correct
7	Correct	4 ms	21340 KB	Output is correct
8	Correct	4 ms	21340 KB	Output is correct
9	Correct	4 ms	21340 KB	Output is correct
10	Correct	4 ms	21336 KB	Output is correct
11	Correct	4 ms	21340 KB	Output is correct
12	Correct	5 ms	21340 KB	Output is correct
13	Correct	4 ms	21292 KB	Output is correct
14	Correct	5 ms	21336 KB	Output is correct
15	Correct	4 ms	21336 KB	Output is correct
16	Correct	4 ms	21340 KB	Output is correct
17	Correct	4 ms	21340 KB	Output is correct
18	Correct	4 ms	21340 KB	Output is correct
19	Correct	4 ms	21084 KB	Output is correct
20	Correct	4 ms	21084 KB	Output is correct
21	Correct	5 ms	21560 KB	Output is correct
22	Correct	5 ms	21596 KB	Output is correct
23	Correct	5 ms	21560 KB	Output is correct
24	Correct	5 ms	21388 KB	Output is correct
25	Correct	6 ms	21568 KB	Output is correct
26	Correct	7 ms	21596 KB	Output is correct
27	Correct	5 ms	21472 KB	Output is correct
28	Correct	5 ms	21592 KB	Output is correct
29	Correct	5 ms	21596 KB	Output is correct
30	Correct	5 ms	21532 KB	Output is correct
31	Correct	5 ms	21596 KB	Output is correct
32	Correct	5 ms	21596 KB	Output is correct
33	Correct	5 ms	21592 KB	Output is correct
34	Correct	5 ms	21340 KB	Output is correct
35	Correct	4 ms	21524 KB	Output is correct
36	Correct	6 ms	21340 KB	Output is correct
37	Correct	4 ms	21364 KB	Output is correct
38	Correct	5 ms	21340 KB	Output is correct
39	Correct	110 ms	45896 KB	Output is correct
40	Correct	116 ms	45560 KB	Output is correct
41	Correct	97 ms	45300 KB	Output is correct
42	Correct	103 ms	44840 KB	Output is correct
43	Correct	142 ms	57656 KB	Output is correct
44	Correct	101 ms	47740 KB	Output is correct
45	Correct	94 ms	46284 KB	Output is correct
46	Correct	55 ms	54616 KB	Output is correct
47	Correct	174 ms	56148 KB	Output is correct
48	Correct	252 ms	98460 KB	Output is correct
49	Correct	257 ms	96596 KB	Output is correct
50	Correct	173 ms	56268 KB	Output is correct
51	Correct	168 ms	56132 KB	Output is correct
52	Correct	243 ms	56404 KB	Output is correct
53	Correct	218 ms	61012 KB	Output is correct
54	Correct	311 ms	94032 KB	Output is correct
55	Correct	16 ms	24412 KB	Output is correct
56	Correct	11 ms	23132 KB	Output is correct
57	Correct	58 ms	42980 KB	Output is correct
58	Correct	43 ms	35528 KB	Output is correct
59	Correct	79 ms	60668 KB	Output is correct
60	Correct	256 ms	97108 KB	Output is correct
61	Correct	194 ms	59728 KB	Output is correct
62	Correct	180 ms	56192 KB	Output is correct
63	Correct	235 ms	56420 KB	Output is correct
64	Correct	406 ms	111416 KB	Output is correct
65	Correct	388 ms	109264 KB	Output is correct
66	Correct	264 ms	92496 KB	Output is correct
67	Correct	152 ms	49912 KB	Output is correct
68	Correct	305 ms	72796 KB	Output is correct
69	Correct	343 ms	77676 KB	Output is correct
70	Correct	288 ms	70460 KB	Output is correct

답안 #886412

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