답안 #24194 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
24194	2017-06-01T12:10:05 Z	Nirjhor	경주 (Race) (IOI11_race)	C++14	100 / 100	887 ms	76284 KB

race

#include <bits/stdc++.h>
#include "race.h"

using namespace std;

typedef long long ll;
typedef pair <int, ll> edge;

#define x first
#define y second

const int N = 200010;
const int INF = 1e9 + 10;

vector <edge> g[N];
int n, k, ans = INF;

void dfs (int u, int from, map <ll, int> &f, ll &key_f, int &val_f) {
  f[0] = 0;
  key_f = val_f = 0;
  for (edge e : g[u]) {
    int v = e.x; 
    ll w = e.y;
    if (v == from) continue;
    map <ll, int> t;
    ll key_t; 
    int val_t;
    dfs(v, u, t, key_t, val_t);
    key_t += w, ++val_t;
    if (t.size() > f.size()) {
      f.swap(t);
      swap(key_f, key_t);
      swap(val_f, val_t);
    }
    for (auto it : t) {
      ll more = k - it.x - key_t - key_f;
      if (f.find(more) != f.end()) {
        ans = min(ans, it.y + f[more] + val_t + val_f);
      }
    }
    key_t -= key_f, val_t -= val_f;
    for (auto it : t) {
      if (f.find(it.x + key_t) == f.end()) f[it.x + key_t] = INF;
      f[it.x + key_t] = min(f[it.x + key_t], it.y + val_t);
    }
  }
  // cout << u << " ----> \n";
  // for (auto it : f) {
  //   cout << it.x << " " << it.y << endl;
  // }
}

int best_path (int N, int K, int H[][2], int L[]) {
  n = N, k = K;
  for (int i = 0; i < n - 1; ++i) {
    g[H[i][0]].emplace_back(H[i][1], L[i]);
    g[H[i][1]].emplace_back(H[i][0], L[i]);
  }
  map <ll, int> f;
  ll key;
  int val;
  dfs(0, 0, f, key, val);
  if (ans >= INF / 2) ans = -1;
  return ans;
}

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	5116 KB	Output is correct
2	Correct	6 ms	5224 KB	Output is correct
3	Correct	7 ms	5224 KB	Output is correct
4	Correct	8 ms	5224 KB	Output is correct
5	Correct	7 ms	5224 KB	Output is correct
6	Correct	7 ms	5224 KB	Output is correct
7	Correct	6 ms	5224 KB	Output is correct
8	Correct	8 ms	5224 KB	Output is correct
9	Correct	5 ms	5228 KB	Output is correct
10	Correct	6 ms	5228 KB	Output is correct
11	Correct	6 ms	5228 KB	Output is correct
12	Correct	6 ms	5228 KB	Output is correct
13	Correct	5 ms	5228 KB	Output is correct
14	Correct	6 ms	5228 KB	Output is correct
15	Correct	6 ms	5292 KB	Output is correct
16	Correct	6 ms	5292 KB	Output is correct
17	Correct	6 ms	5292 KB	Output is correct
18	Correct	6 ms	5292 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	5116 KB	Output is correct
2	Correct	6 ms	5224 KB	Output is correct
3	Correct	7 ms	5224 KB	Output is correct
4	Correct	8 ms	5224 KB	Output is correct
5	Correct	7 ms	5224 KB	Output is correct
6	Correct	7 ms	5224 KB	Output is correct
7	Correct	6 ms	5224 KB	Output is correct
8	Correct	8 ms	5224 KB	Output is correct
9	Correct	5 ms	5228 KB	Output is correct
10	Correct	6 ms	5228 KB	Output is correct
11	Correct	6 ms	5228 KB	Output is correct
12	Correct	6 ms	5228 KB	Output is correct
13	Correct	5 ms	5228 KB	Output is correct
14	Correct	6 ms	5228 KB	Output is correct
15	Correct	6 ms	5292 KB	Output is correct
16	Correct	6 ms	5292 KB	Output is correct
17	Correct	6 ms	5292 KB	Output is correct
18	Correct	6 ms	5292 KB	Output is correct
19	Correct	5 ms	5292 KB	Output is correct
20	Correct	6 ms	5292 KB	Output is correct
21	Correct	7 ms	5348 KB	Output is correct
22	Correct	10 ms	5348 KB	Output is correct
23	Correct	7 ms	5348 KB	Output is correct
24	Correct	7 ms	5348 KB	Output is correct
25	Correct	7 ms	5360 KB	Output is correct
26	Correct	8 ms	5384 KB	Output is correct
27	Correct	6 ms	5384 KB	Output is correct
28	Correct	7 ms	5456 KB	Output is correct
29	Correct	8 ms	5456 KB	Output is correct
30	Correct	8 ms	5456 KB	Output is correct
31	Correct	8 ms	5456 KB	Output is correct
32	Correct	8 ms	5456 KB	Output is correct
33	Correct	10 ms	5456 KB	Output is correct
34	Correct	9 ms	5456 KB	Output is correct
35	Correct	11 ms	5456 KB	Output is correct
36	Correct	8 ms	5536 KB	Output is correct
37	Correct	8 ms	5536 KB	Output is correct
38	Correct	8 ms	5536 KB	Output is correct

Subtask #3
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	5116 KB	Output is correct
2	Correct	6 ms	5224 KB	Output is correct
3	Correct	7 ms	5224 KB	Output is correct
4	Correct	8 ms	5224 KB	Output is correct
5	Correct	7 ms	5224 KB	Output is correct
6	Correct	7 ms	5224 KB	Output is correct
7	Correct	6 ms	5224 KB	Output is correct
8	Correct	8 ms	5224 KB	Output is correct
9	Correct	5 ms	5228 KB	Output is correct
10	Correct	6 ms	5228 KB	Output is correct
11	Correct	6 ms	5228 KB	Output is correct
12	Correct	6 ms	5228 KB	Output is correct
13	Correct	5 ms	5228 KB	Output is correct
14	Correct	6 ms	5228 KB	Output is correct
15	Correct	6 ms	5292 KB	Output is correct
16	Correct	6 ms	5292 KB	Output is correct
17	Correct	6 ms	5292 KB	Output is correct
18	Correct	6 ms	5292 KB	Output is correct
19	Correct	155 ms	11708 KB	Output is correct
20	Correct	148 ms	11820 KB	Output is correct
21	Correct	146 ms	11820 KB	Output is correct
22	Correct	150 ms	11820 KB	Output is correct
23	Correct	242 ms	12340 KB	Output is correct
24	Correct	162 ms	12340 KB	Output is correct
25	Correct	123 ms	27132 KB	Output is correct
26	Correct	84 ms	40828 KB	Output is correct
27	Correct	297 ms	40828 KB	Output is correct
28	Correct	530 ms	76284 KB	Output is correct
29	Correct	553 ms	76284 KB	Output is correct
30	Correct	284 ms	76284 KB	Output is correct
31	Correct	282 ms	76284 KB	Output is correct
32	Correct	332 ms	76284 KB	Output is correct
33	Correct	277 ms	76284 KB	Output is correct
34	Correct	556 ms	76284 KB	Output is correct

Subtask #4
57.0 / 57.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	5116 KB	Output is correct
2	Correct	6 ms	5224 KB	Output is correct
3	Correct	7 ms	5224 KB	Output is correct
4	Correct	8 ms	5224 KB	Output is correct
5	Correct	7 ms	5224 KB	Output is correct
6	Correct	7 ms	5224 KB	Output is correct
7	Correct	6 ms	5224 KB	Output is correct
8	Correct	8 ms	5224 KB	Output is correct
9	Correct	5 ms	5228 KB	Output is correct
10	Correct	6 ms	5228 KB	Output is correct
11	Correct	6 ms	5228 KB	Output is correct
12	Correct	6 ms	5228 KB	Output is correct
13	Correct	5 ms	5228 KB	Output is correct
14	Correct	6 ms	5228 KB	Output is correct
15	Correct	6 ms	5292 KB	Output is correct
16	Correct	6 ms	5292 KB	Output is correct
17	Correct	6 ms	5292 KB	Output is correct
18	Correct	6 ms	5292 KB	Output is correct
19	Correct	5 ms	5292 KB	Output is correct
20	Correct	6 ms	5292 KB	Output is correct
21	Correct	7 ms	5348 KB	Output is correct
22	Correct	10 ms	5348 KB	Output is correct
23	Correct	7 ms	5348 KB	Output is correct
24	Correct	7 ms	5348 KB	Output is correct
25	Correct	7 ms	5360 KB	Output is correct
26	Correct	8 ms	5384 KB	Output is correct
27	Correct	6 ms	5384 KB	Output is correct
28	Correct	7 ms	5456 KB	Output is correct
29	Correct	8 ms	5456 KB	Output is correct
30	Correct	8 ms	5456 KB	Output is correct
31	Correct	8 ms	5456 KB	Output is correct
32	Correct	8 ms	5456 KB	Output is correct
33	Correct	10 ms	5456 KB	Output is correct
34	Correct	9 ms	5456 KB	Output is correct
35	Correct	11 ms	5456 KB	Output is correct
36	Correct	8 ms	5536 KB	Output is correct
37	Correct	8 ms	5536 KB	Output is correct
38	Correct	8 ms	5536 KB	Output is correct
39	Correct	155 ms	11708 KB	Output is correct
40	Correct	148 ms	11820 KB	Output is correct
41	Correct	146 ms	11820 KB	Output is correct
42	Correct	150 ms	11820 KB	Output is correct
43	Correct	242 ms	12340 KB	Output is correct
44	Correct	162 ms	12340 KB	Output is correct
45	Correct	123 ms	27132 KB	Output is correct
46	Correct	84 ms	40828 KB	Output is correct
47	Correct	297 ms	40828 KB	Output is correct
48	Correct	530 ms	76284 KB	Output is correct
49	Correct	553 ms	76284 KB	Output is correct
50	Correct	284 ms	76284 KB	Output is correct
51	Correct	282 ms	76284 KB	Output is correct
52	Correct	332 ms	76284 KB	Output is correct
53	Correct	277 ms	76284 KB	Output is correct
54	Correct	556 ms	76284 KB	Output is correct
55	Correct	24 ms	76284 KB	Output is correct
56	Correct	14 ms	76284 KB	Output is correct
57	Correct	87 ms	76284 KB	Output is correct
58	Correct	72 ms	76284 KB	Output is correct
59	Correct	189 ms	76284 KB	Output is correct
60	Correct	579 ms	76284 KB	Output is correct
61	Correct	366 ms	76284 KB	Output is correct
62	Correct	302 ms	76284 KB	Output is correct
63	Correct	316 ms	76284 KB	Output is correct
64	Correct	887 ms	76284 KB	Output is correct
65	Correct	872 ms	76284 KB	Output is correct
66	Correct	555 ms	76284 KB	Output is correct
67	Correct	193 ms	76284 KB	Output is correct
68	Correct	596 ms	76284 KB	Output is correct
69	Correct	577 ms	76284 KB	Output is correct
70	Correct	566 ms	76284 KB	Output is correct

답안 #24194

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