답안 #793085

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
793085	2023-07-25T13:44:18 Z	NoLove	경주 (Race) (IOI11_race)	C++14	100 / 100	474 ms	107472 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	9 ms	14420 KB	Output is correct
2	Correct	8 ms	14396 KB	Output is correct
3	Correct	8 ms	14420 KB	Output is correct
4	Correct	7 ms	14420 KB	Output is correct
5	Correct	8 ms	14420 KB	Output is correct
6	Correct	7 ms	14420 KB	Output is correct
7	Correct	7 ms	14380 KB	Output is correct
8	Correct	7 ms	14400 KB	Output is correct
9	Correct	8 ms	14420 KB	Output is correct
10	Correct	7 ms	14420 KB	Output is correct
11	Correct	8 ms	14420 KB	Output is correct
12	Correct	7 ms	14400 KB	Output is correct
13	Correct	7 ms	14420 KB	Output is correct
14	Correct	7 ms	14408 KB	Output is correct
15	Correct	6 ms	14348 KB	Output is correct
16	Correct	8 ms	14420 KB	Output is correct
17	Correct	7 ms	14360 KB	Output is correct
18	Correct	7 ms	14404 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	14420 KB	Output is correct
2	Correct	8 ms	14396 KB	Output is correct
3	Correct	8 ms	14420 KB	Output is correct
4	Correct	7 ms	14420 KB	Output is correct
5	Correct	8 ms	14420 KB	Output is correct
6	Correct	7 ms	14420 KB	Output is correct
7	Correct	7 ms	14380 KB	Output is correct
8	Correct	7 ms	14400 KB	Output is correct
9	Correct	8 ms	14420 KB	Output is correct
10	Correct	7 ms	14420 KB	Output is correct
11	Correct	8 ms	14420 KB	Output is correct
12	Correct	7 ms	14400 KB	Output is correct
13	Correct	7 ms	14420 KB	Output is correct
14	Correct	7 ms	14408 KB	Output is correct
15	Correct	6 ms	14348 KB	Output is correct
16	Correct	8 ms	14420 KB	Output is correct
17	Correct	7 ms	14360 KB	Output is correct
18	Correct	7 ms	14404 KB	Output is correct
19	Correct	7 ms	14420 KB	Output is correct
20	Correct	8 ms	14392 KB	Output is correct
21	Correct	9 ms	14664 KB	Output is correct
22	Correct	7 ms	14772 KB	Output is correct
23	Correct	8 ms	14668 KB	Output is correct
24	Correct	7 ms	14676 KB	Output is correct
25	Correct	8 ms	14716 KB	Output is correct
26	Correct	8 ms	14668 KB	Output is correct
27	Correct	7 ms	14596 KB	Output is correct
28	Correct	8 ms	14668 KB	Output is correct
29	Correct	8 ms	14676 KB	Output is correct
30	Correct	8 ms	14664 KB	Output is correct
31	Correct	8 ms	14664 KB	Output is correct
32	Correct	8 ms	14676 KB	Output is correct
33	Correct	8 ms	14672 KB	Output is correct
34	Correct	8 ms	14676 KB	Output is correct
35	Correct	8 ms	14672 KB	Output is correct
36	Correct	8 ms	14660 KB	Output is correct
37	Correct	9 ms	14696 KB	Output is correct
38	Correct	9 ms	14664 KB	Output is correct

Subtask #3
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	14420 KB	Output is correct
2	Correct	8 ms	14396 KB	Output is correct
3	Correct	8 ms	14420 KB	Output is correct
4	Correct	7 ms	14420 KB	Output is correct
5	Correct	8 ms	14420 KB	Output is correct
6	Correct	7 ms	14420 KB	Output is correct
7	Correct	7 ms	14380 KB	Output is correct
8	Correct	7 ms	14400 KB	Output is correct
9	Correct	8 ms	14420 KB	Output is correct
10	Correct	7 ms	14420 KB	Output is correct
11	Correct	8 ms	14420 KB	Output is correct
12	Correct	7 ms	14400 KB	Output is correct
13	Correct	7 ms	14420 KB	Output is correct
14	Correct	7 ms	14408 KB	Output is correct
15	Correct	6 ms	14348 KB	Output is correct
16	Correct	8 ms	14420 KB	Output is correct
17	Correct	7 ms	14360 KB	Output is correct
18	Correct	7 ms	14404 KB	Output is correct
19	Correct	129 ms	39108 KB	Output is correct
20	Correct	127 ms	39140 KB	Output is correct
21	Correct	113 ms	38896 KB	Output is correct
22	Correct	127 ms	38440 KB	Output is correct
23	Correct	152 ms	51412 KB	Output is correct
24	Correct	123 ms	41420 KB	Output is correct
25	Correct	110 ms	40000 KB	Output is correct
26	Correct	54 ms	48232 KB	Output is correct
27	Correct	198 ms	52588 KB	Output is correct
28	Correct	283 ms	94808 KB	Output is correct
29	Correct	320 ms	93004 KB	Output is correct
30	Correct	175 ms	52576 KB	Output is correct
31	Correct	174 ms	52628 KB	Output is correct
32	Correct	302 ms	52776 KB	Output is correct
33	Correct	281 ms	57648 KB	Output is correct
34	Correct	385 ms	90416 KB	Output is correct

Subtask #4
57.0 / 57.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	14420 KB	Output is correct
2	Correct	8 ms	14396 KB	Output is correct
3	Correct	8 ms	14420 KB	Output is correct
4	Correct	7 ms	14420 KB	Output is correct
5	Correct	8 ms	14420 KB	Output is correct
6	Correct	7 ms	14420 KB	Output is correct
7	Correct	7 ms	14380 KB	Output is correct
8	Correct	7 ms	14400 KB	Output is correct
9	Correct	8 ms	14420 KB	Output is correct
10	Correct	7 ms	14420 KB	Output is correct
11	Correct	8 ms	14420 KB	Output is correct
12	Correct	7 ms	14400 KB	Output is correct
13	Correct	7 ms	14420 KB	Output is correct
14	Correct	7 ms	14408 KB	Output is correct
15	Correct	6 ms	14348 KB	Output is correct
16	Correct	8 ms	14420 KB	Output is correct
17	Correct	7 ms	14360 KB	Output is correct
18	Correct	7 ms	14404 KB	Output is correct
19	Correct	7 ms	14420 KB	Output is correct
20	Correct	8 ms	14392 KB	Output is correct
21	Correct	9 ms	14664 KB	Output is correct
22	Correct	7 ms	14772 KB	Output is correct
23	Correct	8 ms	14668 KB	Output is correct
24	Correct	7 ms	14676 KB	Output is correct
25	Correct	8 ms	14716 KB	Output is correct
26	Correct	8 ms	14668 KB	Output is correct
27	Correct	7 ms	14596 KB	Output is correct
28	Correct	8 ms	14668 KB	Output is correct
29	Correct	8 ms	14676 KB	Output is correct
30	Correct	8 ms	14664 KB	Output is correct
31	Correct	8 ms	14664 KB	Output is correct
32	Correct	8 ms	14676 KB	Output is correct
33	Correct	8 ms	14672 KB	Output is correct
34	Correct	8 ms	14676 KB	Output is correct
35	Correct	8 ms	14672 KB	Output is correct
36	Correct	8 ms	14660 KB	Output is correct
37	Correct	9 ms	14696 KB	Output is correct
38	Correct	9 ms	14664 KB	Output is correct
39	Correct	129 ms	39108 KB	Output is correct
40	Correct	127 ms	39140 KB	Output is correct
41	Correct	113 ms	38896 KB	Output is correct
42	Correct	127 ms	38440 KB	Output is correct
43	Correct	152 ms	51412 KB	Output is correct
44	Correct	123 ms	41420 KB	Output is correct
45	Correct	110 ms	40000 KB	Output is correct
46	Correct	54 ms	48232 KB	Output is correct
47	Correct	198 ms	52588 KB	Output is correct
48	Correct	283 ms	94808 KB	Output is correct
49	Correct	320 ms	93004 KB	Output is correct
50	Correct	175 ms	52576 KB	Output is correct
51	Correct	174 ms	52628 KB	Output is correct
52	Correct	302 ms	52776 KB	Output is correct
53	Correct	281 ms	57648 KB	Output is correct
54	Correct	385 ms	90416 KB	Output is correct
55	Correct	20 ms	17868 KB	Output is correct
56	Correct	21 ms	16508 KB	Output is correct
57	Correct	83 ms	36704 KB	Output is correct
58	Correct	48 ms	29168 KB	Output is correct
59	Correct	81 ms	54396 KB	Output is correct
60	Correct	324 ms	93428 KB	Output is correct
61	Correct	239 ms	56068 KB	Output is correct
62	Correct	172 ms	52652 KB	Output is correct
63	Correct	285 ms	52752 KB	Output is correct
64	Correct	474 ms	107472 KB	Output is correct
65	Correct	459 ms	105620 KB	Output is correct
66	Correct	298 ms	88896 KB	Output is correct
67	Correct	228 ms	45508 KB	Output is correct
68	Correct	345 ms	69056 KB	Output is correct
69	Correct	372 ms	73876 KB	Output is correct
70	Correct	349 ms	66664 KB	Output is correct

답안 #793085

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