답안 #882917

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
882917	2023-12-04T06:44:23 Z	rastervc	경주 (Race) (IOI11_race)	C++17	100 / 100	404 ms	111440 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	4 ms	21340 KB	Output is correct
3	Correct	4 ms	21304 KB	Output is correct
4	Correct	4 ms	21336 KB	Output is correct
5	Correct	4 ms	21344 KB	Output is correct
6	Correct	4 ms	21336 KB	Output is correct
7	Correct	5 ms	21172 KB	Output is correct
8	Correct	4 ms	21340 KB	Output is correct
9	Correct	4 ms	21288 KB	Output is correct
10	Correct	4 ms	21336 KB	Output is correct
11	Correct	4 ms	21336 KB	Output is correct
12	Correct	4 ms	21340 KB	Output is correct
13	Correct	5 ms	21340 KB	Output is correct
14	Correct	4 ms	21340 KB	Output is correct
15	Correct	4 ms	21340 KB	Output is correct
16	Correct	4 ms	21336 KB	Output is correct
17	Correct	4 ms	21340 KB	Output is correct
18	Correct	4 ms	21336 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	4 ms	21340 KB	Output is correct
3	Correct	4 ms	21304 KB	Output is correct
4	Correct	4 ms	21336 KB	Output is correct
5	Correct	4 ms	21344 KB	Output is correct
6	Correct	4 ms	21336 KB	Output is correct
7	Correct	5 ms	21172 KB	Output is correct
8	Correct	4 ms	21340 KB	Output is correct
9	Correct	4 ms	21288 KB	Output is correct
10	Correct	4 ms	21336 KB	Output is correct
11	Correct	4 ms	21336 KB	Output is correct
12	Correct	4 ms	21340 KB	Output is correct
13	Correct	5 ms	21340 KB	Output is correct
14	Correct	4 ms	21340 KB	Output is correct
15	Correct	4 ms	21340 KB	Output is correct
16	Correct	4 ms	21336 KB	Output is correct
17	Correct	4 ms	21340 KB	Output is correct
18	Correct	4 ms	21336 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	21336 KB	Output is correct
22	Correct	5 ms	21632 KB	Output is correct
23	Correct	6 ms	21596 KB	Output is correct
24	Correct	5 ms	21616 KB	Output is correct
25	Correct	7 ms	21596 KB	Output is correct
26	Correct	5 ms	21592 KB	Output is correct
27	Correct	5 ms	21476 KB	Output is correct
28	Correct	6 ms	21596 KB	Output is correct
29	Correct	5 ms	21596 KB	Output is correct
30	Correct	5 ms	21596 KB	Output is correct
31	Correct	5 ms	21600 KB	Output is correct
32	Correct	6 ms	21452 KB	Output is correct
33	Correct	5 ms	21792 KB	Output is correct
34	Correct	5 ms	21336 KB	Output is correct
35	Correct	5 ms	21340 KB	Output is correct
36	Correct	5 ms	21428 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	4 ms	21340 KB	Output is correct
2	Correct	4 ms	21340 KB	Output is correct
3	Correct	4 ms	21304 KB	Output is correct
4	Correct	4 ms	21336 KB	Output is correct
5	Correct	4 ms	21344 KB	Output is correct
6	Correct	4 ms	21336 KB	Output is correct
7	Correct	5 ms	21172 KB	Output is correct
8	Correct	4 ms	21340 KB	Output is correct
9	Correct	4 ms	21288 KB	Output is correct
10	Correct	4 ms	21336 KB	Output is correct
11	Correct	4 ms	21336 KB	Output is correct
12	Correct	4 ms	21340 KB	Output is correct
13	Correct	5 ms	21340 KB	Output is correct
14	Correct	4 ms	21340 KB	Output is correct
15	Correct	4 ms	21340 KB	Output is correct
16	Correct	4 ms	21336 KB	Output is correct
17	Correct	4 ms	21340 KB	Output is correct
18	Correct	4 ms	21336 KB	Output is correct
19	Correct	126 ms	45352 KB	Output is correct
20	Correct	103 ms	45392 KB	Output is correct
21	Correct	120 ms	45432 KB	Output is correct
22	Correct	117 ms	44780 KB	Output is correct
23	Correct	149 ms	57560 KB	Output is correct
24	Correct	113 ms	47584 KB	Output is correct
25	Correct	101 ms	46320 KB	Output is correct
26	Correct	51 ms	54380 KB	Output is correct
27	Correct	172 ms	56232 KB	Output is correct
28	Correct	275 ms	98540 KB	Output is correct
29	Correct	284 ms	96596 KB	Output is correct
30	Correct	163 ms	56144 KB	Output is correct
31	Correct	176 ms	56348 KB	Output is correct
32	Correct	240 ms	56276 KB	Output is correct
33	Correct	225 ms	61204 KB	Output is correct
34	Correct	297 ms	94104 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	4 ms	21340 KB	Output is correct
3	Correct	4 ms	21304 KB	Output is correct
4	Correct	4 ms	21336 KB	Output is correct
5	Correct	4 ms	21344 KB	Output is correct
6	Correct	4 ms	21336 KB	Output is correct
7	Correct	5 ms	21172 KB	Output is correct
8	Correct	4 ms	21340 KB	Output is correct
9	Correct	4 ms	21288 KB	Output is correct
10	Correct	4 ms	21336 KB	Output is correct
11	Correct	4 ms	21336 KB	Output is correct
12	Correct	4 ms	21340 KB	Output is correct
13	Correct	5 ms	21340 KB	Output is correct
14	Correct	4 ms	21340 KB	Output is correct
15	Correct	4 ms	21340 KB	Output is correct
16	Correct	4 ms	21336 KB	Output is correct
17	Correct	4 ms	21340 KB	Output is correct
18	Correct	4 ms	21336 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	21336 KB	Output is correct
22	Correct	5 ms	21632 KB	Output is correct
23	Correct	6 ms	21596 KB	Output is correct
24	Correct	5 ms	21616 KB	Output is correct
25	Correct	7 ms	21596 KB	Output is correct
26	Correct	5 ms	21592 KB	Output is correct
27	Correct	5 ms	21476 KB	Output is correct
28	Correct	6 ms	21596 KB	Output is correct
29	Correct	5 ms	21596 KB	Output is correct
30	Correct	5 ms	21596 KB	Output is correct
31	Correct	5 ms	21600 KB	Output is correct
32	Correct	6 ms	21452 KB	Output is correct
33	Correct	5 ms	21792 KB	Output is correct
34	Correct	5 ms	21336 KB	Output is correct
35	Correct	5 ms	21340 KB	Output is correct
36	Correct	5 ms	21428 KB	Output is correct
37	Correct	5 ms	21340 KB	Output is correct
38	Correct	5 ms	21340 KB	Output is correct
39	Correct	126 ms	45352 KB	Output is correct
40	Correct	103 ms	45392 KB	Output is correct
41	Correct	120 ms	45432 KB	Output is correct
42	Correct	117 ms	44780 KB	Output is correct
43	Correct	149 ms	57560 KB	Output is correct
44	Correct	113 ms	47584 KB	Output is correct
45	Correct	101 ms	46320 KB	Output is correct
46	Correct	51 ms	54380 KB	Output is correct
47	Correct	172 ms	56232 KB	Output is correct
48	Correct	275 ms	98540 KB	Output is correct
49	Correct	284 ms	96596 KB	Output is correct
50	Correct	163 ms	56144 KB	Output is correct
51	Correct	176 ms	56348 KB	Output is correct
52	Correct	240 ms	56276 KB	Output is correct
53	Correct	225 ms	61204 KB	Output is correct
54	Correct	297 ms	94104 KB	Output is correct
55	Correct	16 ms	24412 KB	Output is correct
56	Correct	10 ms	23128 KB	Output is correct
57	Correct	66 ms	43028 KB	Output is correct
58	Correct	42 ms	35532 KB	Output is correct
59	Correct	92 ms	60716 KB	Output is correct
60	Correct	262 ms	97208 KB	Output is correct
61	Correct	190 ms	59732 KB	Output is correct
62	Correct	175 ms	56468 KB	Output is correct
63	Correct	225 ms	56392 KB	Output is correct
64	Correct	404 ms	111440 KB	Output is correct
65	Correct	371 ms	109128 KB	Output is correct
66	Correct	283 ms	92404 KB	Output is correct
67	Correct	154 ms	49476 KB	Output is correct
68	Correct	304 ms	72564 KB	Output is correct
69	Correct	346 ms	77368 KB	Output is correct
70	Correct	291 ms	70476 KB	Output is correct

답안 #882917

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