답안 #1007475

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1007475	2024-06-25T03:42:17 Z	ezzzay	경주 (Race) (IOI11_race)	C++14	100 / 100	313 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	2 ms	21340 KB	Output is correct
2	Correct	2 ms	21084 KB	Output is correct
3	Correct	3 ms	21340 KB	Output is correct
4	Correct	3 ms	21080 KB	Output is correct
5	Correct	3 ms	21340 KB	Output is correct
6	Correct	3 ms	21340 KB	Output is correct
7	Correct	2 ms	21084 KB	Output is correct
8	Correct	3 ms	21340 KB	Output is correct
9	Correct	2 ms	21084 KB	Output is correct
10	Correct	3 ms	21340 KB	Output is correct
11	Correct	3 ms	21336 KB	Output is correct
12	Correct	3 ms	21296 KB	Output is correct
13	Correct	3 ms	21084 KB	Output is correct
14	Correct	3 ms	21336 KB	Output is correct
15	Correct	3 ms	21084 KB	Output is correct
16	Correct	3 ms	21084 KB	Output is correct
17	Correct	4 ms	21340 KB	Output is correct
18	Correct	3 ms	21336 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	21340 KB	Output is correct
2	Correct	2 ms	21084 KB	Output is correct
3	Correct	3 ms	21340 KB	Output is correct
4	Correct	3 ms	21080 KB	Output is correct
5	Correct	3 ms	21340 KB	Output is correct
6	Correct	3 ms	21340 KB	Output is correct
7	Correct	2 ms	21084 KB	Output is correct
8	Correct	3 ms	21340 KB	Output is correct
9	Correct	2 ms	21084 KB	Output is correct
10	Correct	3 ms	21340 KB	Output is correct
11	Correct	3 ms	21336 KB	Output is correct
12	Correct	3 ms	21296 KB	Output is correct
13	Correct	3 ms	21084 KB	Output is correct
14	Correct	3 ms	21336 KB	Output is correct
15	Correct	3 ms	21084 KB	Output is correct
16	Correct	3 ms	21084 KB	Output is correct
17	Correct	4 ms	21340 KB	Output is correct
18	Correct	3 ms	21336 KB	Output is correct
19	Correct	3 ms	21084 KB	Output is correct
20	Correct	3 ms	21308 KB	Output is correct
21	Correct	5 ms	21336 KB	Output is correct
22	Correct	4 ms	21596 KB	Output is correct
23	Correct	3 ms	21596 KB	Output is correct
24	Correct	4 ms	21596 KB	Output is correct
25	Correct	3 ms	21596 KB	Output is correct
26	Correct	3 ms	21596 KB	Output is correct
27	Correct	3 ms	21468 KB	Output is correct
28	Correct	4 ms	21596 KB	Output is correct
29	Correct	4 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	3 ms	21528 KB	Output is correct
33	Correct	4 ms	21596 KB	Output is correct
34	Correct	3 ms	21340 KB	Output is correct
35	Correct	4 ms	21556 KB	Output is correct
36	Correct	3 ms	21340 KB	Output is correct
37	Correct	3 ms	21304 KB	Output is correct
38	Correct	3 ms	21336 KB	Output is correct

Subtask #3
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	21340 KB	Output is correct
2	Correct	2 ms	21084 KB	Output is correct
3	Correct	3 ms	21340 KB	Output is correct
4	Correct	3 ms	21080 KB	Output is correct
5	Correct	3 ms	21340 KB	Output is correct
6	Correct	3 ms	21340 KB	Output is correct
7	Correct	2 ms	21084 KB	Output is correct
8	Correct	3 ms	21340 KB	Output is correct
9	Correct	2 ms	21084 KB	Output is correct
10	Correct	3 ms	21340 KB	Output is correct
11	Correct	3 ms	21336 KB	Output is correct
12	Correct	3 ms	21296 KB	Output is correct
13	Correct	3 ms	21084 KB	Output is correct
14	Correct	3 ms	21336 KB	Output is correct
15	Correct	3 ms	21084 KB	Output is correct
16	Correct	3 ms	21084 KB	Output is correct
17	Correct	4 ms	21340 KB	Output is correct
18	Correct	3 ms	21336 KB	Output is correct
19	Correct	83 ms	44116 KB	Output is correct
20	Correct	80 ms	45220 KB	Output is correct
21	Correct	77 ms	44440 KB	Output is correct
22	Correct	85 ms	44624 KB	Output is correct
23	Correct	107 ms	57680 KB	Output is correct
24	Correct	77 ms	47696 KB	Output is correct
25	Correct	64 ms	46144 KB	Output is correct
26	Correct	42 ms	53904 KB	Output is correct
27	Correct	132 ms	54808 KB	Output is correct
28	Correct	201 ms	97108 KB	Output is correct
29	Correct	190 ms	95532 KB	Output is correct
30	Correct	117 ms	55380 KB	Output is correct
31	Correct	134 ms	55728 KB	Output is correct
32	Correct	154 ms	55376 KB	Output is correct
33	Correct	144 ms	60512 KB	Output is correct
34	Correct	250 ms	92748 KB	Output is correct

Subtask #4
57.0 / 57.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	21340 KB	Output is correct
2	Correct	2 ms	21084 KB	Output is correct
3	Correct	3 ms	21340 KB	Output is correct
4	Correct	3 ms	21080 KB	Output is correct
5	Correct	3 ms	21340 KB	Output is correct
6	Correct	3 ms	21340 KB	Output is correct
7	Correct	2 ms	21084 KB	Output is correct
8	Correct	3 ms	21340 KB	Output is correct
9	Correct	2 ms	21084 KB	Output is correct
10	Correct	3 ms	21340 KB	Output is correct
11	Correct	3 ms	21336 KB	Output is correct
12	Correct	3 ms	21296 KB	Output is correct
13	Correct	3 ms	21084 KB	Output is correct
14	Correct	3 ms	21336 KB	Output is correct
15	Correct	3 ms	21084 KB	Output is correct
16	Correct	3 ms	21084 KB	Output is correct
17	Correct	4 ms	21340 KB	Output is correct
18	Correct	3 ms	21336 KB	Output is correct
19	Correct	3 ms	21084 KB	Output is correct
20	Correct	3 ms	21308 KB	Output is correct
21	Correct	5 ms	21336 KB	Output is correct
22	Correct	4 ms	21596 KB	Output is correct
23	Correct	3 ms	21596 KB	Output is correct
24	Correct	4 ms	21596 KB	Output is correct
25	Correct	3 ms	21596 KB	Output is correct
26	Correct	3 ms	21596 KB	Output is correct
27	Correct	3 ms	21468 KB	Output is correct
28	Correct	4 ms	21596 KB	Output is correct
29	Correct	4 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	3 ms	21528 KB	Output is correct
33	Correct	4 ms	21596 KB	Output is correct
34	Correct	3 ms	21340 KB	Output is correct
35	Correct	4 ms	21556 KB	Output is correct
36	Correct	3 ms	21340 KB	Output is correct
37	Correct	3 ms	21304 KB	Output is correct
38	Correct	3 ms	21336 KB	Output is correct
39	Correct	83 ms	44116 KB	Output is correct
40	Correct	80 ms	45220 KB	Output is correct
41	Correct	77 ms	44440 KB	Output is correct
42	Correct	85 ms	44624 KB	Output is correct
43	Correct	107 ms	57680 KB	Output is correct
44	Correct	77 ms	47696 KB	Output is correct
45	Correct	64 ms	46144 KB	Output is correct
46	Correct	42 ms	53904 KB	Output is correct
47	Correct	132 ms	54808 KB	Output is correct
48	Correct	201 ms	97108 KB	Output is correct
49	Correct	190 ms	95532 KB	Output is correct
50	Correct	117 ms	55380 KB	Output is correct
51	Correct	134 ms	55728 KB	Output is correct
52	Correct	154 ms	55376 KB	Output is correct
53	Correct	144 ms	60512 KB	Output is correct
54	Correct	250 ms	92748 KB	Output is correct
55	Correct	12 ms	24412 KB	Output is correct
56	Correct	8 ms	22876 KB	Output is correct
57	Correct	45 ms	41924 KB	Output is correct
58	Correct	33 ms	35520 KB	Output is correct
59	Correct	68 ms	60264 KB	Output is correct
60	Correct	200 ms	96032 KB	Output is correct
61	Correct	167 ms	58196 KB	Output is correct
62	Correct	135 ms	55380 KB	Output is correct
63	Correct	178 ms	55256 KB	Output is correct
64	Correct	313 ms	108628 KB	Output is correct
65	Correct	297 ms	108372 KB	Output is correct
66	Correct	215 ms	89428 KB	Output is correct
67	Correct	117 ms	49076 KB	Output is correct
68	Correct	245 ms	71504 KB	Output is correct
69	Correct	263 ms	73880 KB	Output is correct
70	Correct	237 ms	69712 KB	Output is correct

답안 #1007475

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