답안 #28930 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
28930	2017-07-18T00:14:24 Z	h0ngjun7	경주 (Race) (IOI11_race)	C++14	100 / 100	518 ms	66484 KB

race

#include "race.h"
#include <vector>
#include <algorithm>
#include <unordered_map>
using namespace std;

const int MAXN = 200005;
struct EDGE { int x, w; };
int N, K, ans = -1;
vector <EDGE> v[MAXN];

void f(int x, int par, unordered_map <int, int> &d, int &L, int &W) {
	d[0] = 0;
	for (auto &y : v[x]) {
		if (y.x == par) continue;
		unordered_map <int, int> d2;
		int L2 = 0, W2 = 0;
		f(y.x, x, d2, L2, W2);
		L2++; W2 += y.w;
		if (d.size() < d2.size()) {
			d.swap(d2);
			swap(L, L2);
			swap(W, W2);
		}
		for (auto &t : d2) {
			if (d.count(K - (t.first + W2 + W))) {
				if (ans == -1 || ans > d[K - (t.first + W2 + W)] + t.second + L + L2)
					ans = d[K - (t.first + W2 + W)] + t.second + L + L2;
			}
		}
		for (auto &t : d2) {
			if (t.first + W2 > K) continue;
			if (t.first + W2 == K) {
				if (ans == -1 || ans > t.second + L2)
					ans = t.second + L2;
			}
			if (d.count(t.first + W2 - W)) d[t.first + W2 - W] = min(d[t.first + W2 - W], t.second + L2 - L);
			else d[t.first + W2 - W] = t.second + L2 - L;
		}
	}
}

int best_path(int _N, int _K, int H[][2], int L[]) {
	N = _N, K = _K;
	for (int i = 0; i < N - 1; i++) {
		v[H[i][0]].push_back({ H[i][1], L[i] });
		v[H[i][1]].push_back({ H[i][0], L[i] });
	}
	unordered_map <int, int> d;
	int A = 0, B = 0;
	f(0, -1, d, A, B);
	return ans;
}

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	4984 KB	Output is correct
2	Correct	6 ms	5092 KB	Output is correct
3	Correct	5 ms	5092 KB	Output is correct
4	Correct	5 ms	5144 KB	Output is correct
5	Correct	5 ms	5144 KB	Output is correct
6	Correct	6 ms	5196 KB	Output is correct
7	Correct	5 ms	5244 KB	Output is correct
8	Correct	6 ms	5400 KB	Output is correct
9	Correct	5 ms	5400 KB	Output is correct
10	Correct	5 ms	5400 KB	Output is correct
11	Correct	5 ms	5400 KB	Output is correct
12	Correct	5 ms	5400 KB	Output is correct
13	Correct	5 ms	5400 KB	Output is correct
14	Correct	6 ms	5400 KB	Output is correct
15	Correct	5 ms	5400 KB	Output is correct
16	Correct	5 ms	5400 KB	Output is correct
17	Correct	5 ms	5400 KB	Output is correct
18	Correct	5 ms	5400 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	4984 KB	Output is correct
2	Correct	6 ms	5092 KB	Output is correct
3	Correct	5 ms	5092 KB	Output is correct
4	Correct	5 ms	5144 KB	Output is correct
5	Correct	5 ms	5144 KB	Output is correct
6	Correct	6 ms	5196 KB	Output is correct
7	Correct	5 ms	5244 KB	Output is correct
8	Correct	6 ms	5400 KB	Output is correct
9	Correct	5 ms	5400 KB	Output is correct
10	Correct	5 ms	5400 KB	Output is correct
11	Correct	5 ms	5400 KB	Output is correct
12	Correct	5 ms	5400 KB	Output is correct
13	Correct	5 ms	5400 KB	Output is correct
14	Correct	6 ms	5400 KB	Output is correct
15	Correct	5 ms	5400 KB	Output is correct
16	Correct	5 ms	5400 KB	Output is correct
17	Correct	5 ms	5400 KB	Output is correct
18	Correct	5 ms	5400 KB	Output is correct
19	Correct	5 ms	5400 KB	Output is correct
20	Correct	5 ms	5400 KB	Output is correct
21	Correct	7 ms	5400 KB	Output is correct
22	Correct	6 ms	5400 KB	Output is correct
23	Correct	6 ms	5400 KB	Output is correct
24	Correct	7 ms	5400 KB	Output is correct
25	Correct	6 ms	5400 KB	Output is correct
26	Correct	6 ms	5400 KB	Output is correct
27	Correct	5 ms	5400 KB	Output is correct
28	Correct	6 ms	5452 KB	Output is correct
29	Correct	6 ms	5452 KB	Output is correct
30	Correct	6 ms	5452 KB	Output is correct
31	Correct	6 ms	5452 KB	Output is correct
32	Correct	7 ms	5452 KB	Output is correct
33	Correct	6 ms	5452 KB	Output is correct
34	Correct	6 ms	5452 KB	Output is correct
35	Correct	6 ms	5452 KB	Output is correct
36	Correct	6 ms	5452 KB	Output is correct
37	Correct	6 ms	5452 KB	Output is correct
38	Correct	6 ms	5452 KB	Output is correct

Subtask #3
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	4984 KB	Output is correct
2	Correct	6 ms	5092 KB	Output is correct
3	Correct	5 ms	5092 KB	Output is correct
4	Correct	5 ms	5144 KB	Output is correct
5	Correct	5 ms	5144 KB	Output is correct
6	Correct	6 ms	5196 KB	Output is correct
7	Correct	5 ms	5244 KB	Output is correct
8	Correct	6 ms	5400 KB	Output is correct
9	Correct	5 ms	5400 KB	Output is correct
10	Correct	5 ms	5400 KB	Output is correct
11	Correct	5 ms	5400 KB	Output is correct
12	Correct	5 ms	5400 KB	Output is correct
13	Correct	5 ms	5400 KB	Output is correct
14	Correct	6 ms	5400 KB	Output is correct
15	Correct	5 ms	5400 KB	Output is correct
16	Correct	5 ms	5400 KB	Output is correct
17	Correct	5 ms	5400 KB	Output is correct
18	Correct	5 ms	5400 KB	Output is correct
19	Correct	126 ms	10092 KB	Output is correct
20	Correct	133 ms	10264 KB	Output is correct
21	Correct	132 ms	10264 KB	Output is correct
22	Correct	138 ms	10352 KB	Output is correct
23	Correct	134 ms	10352 KB	Output is correct
24	Correct	118 ms	10388 KB	Output is correct
25	Correct	120 ms	23192 KB	Output is correct
26	Correct	115 ms	34540 KB	Output is correct
27	Correct	231 ms	34540 KB	Output is correct
28	Correct	335 ms	66484 KB	Output is correct
29	Correct	332 ms	66484 KB	Output is correct
30	Correct	236 ms	66484 KB	Output is correct
31	Correct	224 ms	66484 KB	Output is correct
32	Correct	229 ms	66484 KB	Output is correct
33	Correct	213 ms	66484 KB	Output is correct
34	Correct	192 ms	66484 KB	Output is correct

Subtask #4
57.0 / 57.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	4984 KB	Output is correct
2	Correct	6 ms	5092 KB	Output is correct
3	Correct	5 ms	5092 KB	Output is correct
4	Correct	5 ms	5144 KB	Output is correct
5	Correct	5 ms	5144 KB	Output is correct
6	Correct	6 ms	5196 KB	Output is correct
7	Correct	5 ms	5244 KB	Output is correct
8	Correct	6 ms	5400 KB	Output is correct
9	Correct	5 ms	5400 KB	Output is correct
10	Correct	5 ms	5400 KB	Output is correct
11	Correct	5 ms	5400 KB	Output is correct
12	Correct	5 ms	5400 KB	Output is correct
13	Correct	5 ms	5400 KB	Output is correct
14	Correct	6 ms	5400 KB	Output is correct
15	Correct	5 ms	5400 KB	Output is correct
16	Correct	5 ms	5400 KB	Output is correct
17	Correct	5 ms	5400 KB	Output is correct
18	Correct	5 ms	5400 KB	Output is correct
19	Correct	5 ms	5400 KB	Output is correct
20	Correct	5 ms	5400 KB	Output is correct
21	Correct	7 ms	5400 KB	Output is correct
22	Correct	6 ms	5400 KB	Output is correct
23	Correct	6 ms	5400 KB	Output is correct
24	Correct	7 ms	5400 KB	Output is correct
25	Correct	6 ms	5400 KB	Output is correct
26	Correct	6 ms	5400 KB	Output is correct
27	Correct	5 ms	5400 KB	Output is correct
28	Correct	6 ms	5452 KB	Output is correct
29	Correct	6 ms	5452 KB	Output is correct
30	Correct	6 ms	5452 KB	Output is correct
31	Correct	6 ms	5452 KB	Output is correct
32	Correct	7 ms	5452 KB	Output is correct
33	Correct	6 ms	5452 KB	Output is correct
34	Correct	6 ms	5452 KB	Output is correct
35	Correct	6 ms	5452 KB	Output is correct
36	Correct	6 ms	5452 KB	Output is correct
37	Correct	6 ms	5452 KB	Output is correct
38	Correct	6 ms	5452 KB	Output is correct
39	Correct	126 ms	10092 KB	Output is correct
40	Correct	133 ms	10264 KB	Output is correct
41	Correct	132 ms	10264 KB	Output is correct
42	Correct	138 ms	10352 KB	Output is correct
43	Correct	134 ms	10352 KB	Output is correct
44	Correct	118 ms	10388 KB	Output is correct
45	Correct	120 ms	23192 KB	Output is correct
46	Correct	115 ms	34540 KB	Output is correct
47	Correct	231 ms	34540 KB	Output is correct
48	Correct	335 ms	66484 KB	Output is correct
49	Correct	332 ms	66484 KB	Output is correct
50	Correct	236 ms	66484 KB	Output is correct
51	Correct	224 ms	66484 KB	Output is correct
52	Correct	229 ms	66484 KB	Output is correct
53	Correct	213 ms	66484 KB	Output is correct
54	Correct	192 ms	66484 KB	Output is correct
55	Correct	20 ms	66484 KB	Output is correct
56	Correct	15 ms	66484 KB	Output is correct
57	Correct	94 ms	66484 KB	Output is correct
58	Correct	65 ms	66484 KB	Output is correct
59	Correct	112 ms	66484 KB	Output is correct
60	Correct	350 ms	66484 KB	Output is correct
61	Correct	285 ms	66484 KB	Output is correct
62	Correct	244 ms	66484 KB	Output is correct
63	Correct	274 ms	66484 KB	Output is correct
64	Correct	518 ms	66484 KB	Output is correct
65	Correct	261 ms	66484 KB	Output is correct
66	Correct	417 ms	66484 KB	Output is correct
67	Correct	208 ms	66484 KB	Output is correct
68	Correct	347 ms	66484 KB	Output is correct
69	Correct	434 ms	66484 KB	Output is correct
70	Correct	340 ms	66484 KB	Output is correct

답안 #28930

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