oj.uz

답안 #531914

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
531914 2022-03-01T21:26:42 Z Alex_tz307 Bitaro’s Party (JOI18_bitaro) C++17
100 / 100
 1464 ms 60656 KB 
#include <bits/stdc++.h>

using namespace std;

const int kN = 1e5;
const int bucket = 50;
vector<int> gt[1 + kN];
vector<pair<int, int>> paths[1 + kN];
int vis[1 + kN], b[kN], dp[1 + kN];
bitset<1 + kN> blocked;

void maxSelf(int &x, int y) {
  if (x < y) {
    x = y;
  }
}

void testCase() {
  int n, m, q;
  cin >> n >> m >> q;
  for (int i = 0; i < m; ++i) {
    int u, v;
    cin >> u >> v;
    gt[v].emplace_back(u);
  }
  for (int u = 1; u <= n; ++u) {
    vector<pair<int, int>> aux{{0, u}};
    for (int v : gt[u]) {
      for (auto it : paths[v]) {
        aux.emplace_back(it.first + 1, it.second);
      }
    }
    sort(aux.begin(), aux.end(), greater<pair<int, int>>());
    for (auto it : aux) {
      if (vis[it.second] != u) {
        paths[u].emplace_back(it);
        if ((int)paths[u].size() == bucket) {
          break;
        }
        vis[it.second] = u;
      }
    }
  }
  for (int i = 0; i < q; ++i) {
    int s, m;
    cin >> s >> m;
    for (int j = 0; j < m; ++j) {
      cin >> b[j];
      blocked[b[j]] = true;
    }
    if (bucket <= m) {
      for (int u = 1; u <= s; ++u) {
        if (blocked[u]) {
          dp[u] = -1;
        } else {
          dp[u] = 0;
        }
        for (int v : gt[u]) {
          if (dp[v] != -1) {
            maxSelf(dp[u], dp[v] + 1);
          }
        }
      }
      cout << dp[s] << '\n';
    } else {
      int ans = -1;
      for (auto it : paths[s]) {
        if (!blocked[it.second]) {
          ans = it.first;
          break;
        }
      }
      cout << ans << '\n';
    }
    for (int j = 0; j < m; ++j) {
      blocked[b[j]] = false;
    }
  }
}

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(nullptr);
  int tests = 1;
  for (int tc = 0; tc < tests; ++tc) {
    testCase();
  }
  return 0;
}

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 2 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 5 ms 5324 KB Output is correct
6 Correct 5 ms 5324 KB Output is correct
7 Correct 5 ms 5324 KB Output is correct
8 Correct 8 ms 5452 KB Output is correct
9 Correct 6 ms 5452 KB Output is correct
10 Correct 5 ms 5452 KB Output is correct
11 Correct 6 ms 5504 KB Output is correct
12 Correct 6 ms 5476 KB Output is correct
13 Correct 6 ms 5452 KB Output is correct
14 Correct 5 ms 5324 KB Output is correct
15 Correct 5 ms 5324 KB Output is correct
16 Correct 5 ms 5324 KB Output is correct
17 Correct 6 ms 5452 KB Output is correct
18 Correct 6 ms 5324 KB Output is correct
19 Correct 6 ms 5452 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 2 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 5 ms 5324 KB Output is correct
6 Correct 5 ms 5324 KB Output is correct
7 Correct 5 ms 5324 KB Output is correct
8 Correct 8 ms 5452 KB Output is correct
9 Correct 6 ms 5452 KB Output is correct
10 Correct 5 ms 5452 KB Output is correct
11 Correct 6 ms 5504 KB Output is correct
12 Correct 6 ms 5476 KB Output is correct
13 Correct 6 ms 5452 KB Output is correct
14 Correct 5 ms 5324 KB Output is correct
15 Correct 5 ms 5324 KB Output is correct
16 Correct 5 ms 5324 KB Output is correct
17 Correct 6 ms 5452 KB Output is correct
18 Correct 6 ms 5324 KB Output is correct
19 Correct 6 ms 5452 KB Output is correct
20 Correct 659 ms 7028 KB Output is correct
21 Correct 619 ms 6844 KB Output is correct
22 Correct 650 ms 6896 KB Output is correct
23 Correct 608 ms 7468 KB Output is correct
24 Correct 438 ms 49728 KB Output is correct
25 Correct 425 ms 49852 KB Output is correct
26 Correct 467 ms 49948 KB Output is correct
27 Correct 284 ms 60200 KB Output is correct
28 Correct 290 ms 60280 KB Output is correct
29 Correct 274 ms 60364 KB Output is correct
30 Correct 301 ms 59972 KB Output is correct
31 Correct 354 ms 59840 KB Output is correct
32 Correct 311 ms 60044 KB Output is correct
33 Correct 301 ms 42152 KB Output is correct
34 Correct 313 ms 39916 KB Output is correct
35 Correct 293 ms 42220 KB Output is correct
36 Correct 353 ms 51072 KB Output is correct
37 Correct 362 ms 49336 KB Output is correct
38 Correct 333 ms 51084 KB Output is correct

Subtask #3
86.0 / 86.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 2 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 5 ms 5324 KB Output is correct
6 Correct 5 ms 5324 KB Output is correct
7 Correct 5 ms 5324 KB Output is correct
8 Correct 8 ms 5452 KB Output is correct
9 Correct 6 ms 5452 KB Output is correct
10 Correct 5 ms 5452 KB Output is correct
11 Correct 6 ms 5504 KB Output is correct
12 Correct 6 ms 5476 KB Output is correct
13 Correct 6 ms 5452 KB Output is correct
14 Correct 5 ms 5324 KB Output is correct
15 Correct 5 ms 5324 KB Output is correct
16 Correct 5 ms 5324 KB Output is correct
17 Correct 6 ms 5452 KB Output is correct
18 Correct 6 ms 5324 KB Output is correct
19 Correct 6 ms 5452 KB Output is correct
20 Correct 659 ms 7028 KB Output is correct
21 Correct 619 ms 6844 KB Output is correct
22 Correct 650 ms 6896 KB Output is correct
23 Correct 608 ms 7468 KB Output is correct
24 Correct 438 ms 49728 KB Output is correct
25 Correct 425 ms 49852 KB Output is correct
26 Correct 467 ms 49948 KB Output is correct
27 Correct 284 ms 60200 KB Output is correct
28 Correct 290 ms 60280 KB Output is correct
29 Correct 274 ms 60364 KB Output is correct
30 Correct 301 ms 59972 KB Output is correct
31 Correct 354 ms 59840 KB Output is correct
32 Correct 311 ms 60044 KB Output is correct
33 Correct 301 ms 42152 KB Output is correct
34 Correct 313 ms 39916 KB Output is correct
35 Correct 293 ms 42220 KB Output is correct
36 Correct 353 ms 51072 KB Output is correct
37 Correct 362 ms 49336 KB Output is correct
38 Correct 333 ms 51084 KB Output is correct
39 Correct 470 ms 49644 KB Output is correct
40 Correct 437 ms 49584 KB Output is correct
41 Correct 1464 ms 50144 KB Output is correct
42 Correct 548 ms 49984 KB Output is correct
43 Correct 458 ms 49632 KB Output is correct
44 Correct 658 ms 7108 KB Output is correct
45 Correct 632 ms 6852 KB Output is correct
46 Correct 763 ms 7016 KB Output is correct
47 Correct 650 ms 6908 KB Output is correct
48 Correct 642 ms 7072 KB Output is correct
49 Correct 311 ms 60356 KB Output is correct
50 Correct 768 ms 60472 KB Output is correct
51 Correct 646 ms 7132 KB Output is correct
52 Correct 909 ms 7000 KB Output is correct
53 Correct 358 ms 50884 KB Output is correct
54 Correct 414 ms 49404 KB Output is correct
55 Correct 1342 ms 50936 KB Output is correct
56 Correct 1398 ms 49652 KB Output is correct
57 Correct 657 ms 7144 KB Output is correct
58 Correct 657 ms 7132 KB Output is correct
59 Correct 964 ms 6900 KB Output is correct
60 Correct 949 ms 7012 KB Output is correct
61 Correct 326 ms 60260 KB Output is correct
62 Correct 423 ms 51008 KB Output is correct
63 Correct 450 ms 49316 KB Output is correct
64 Correct 446 ms 60368 KB Output is correct
65 Correct 627 ms 50968 KB Output is correct
66 Correct 679 ms 49720 KB Output is correct
67 Correct 540 ms 60276 KB Output is correct
68 Correct 835 ms 51136 KB Output is correct
69 Correct 887 ms 49172 KB Output is correct
70 Correct 290 ms 60228 KB Output is correct
71 Correct 334 ms 50892 KB Output is correct
72 Correct 378 ms 49384 KB Output is correct
73 Correct 298 ms 60244 KB Output is correct
74 Correct 386 ms 51028 KB Output is correct
75 Correct 389 ms 49432 KB Output is correct
76 Correct 323 ms 60656 KB Output is correct
77 Correct 658 ms 60188 KB Output is correct
78 Correct 279 ms 60228 KB Output is correct
79 Correct 638 ms 7068 KB Output is correct
80 Correct 681 ms 6884 KB Output is correct
81 Correct 611 ms 6832 KB Output is correct
82 Correct 363 ms 60352 KB Output is correct
83 Correct 380 ms 59616 KB Output is correct
84 Correct 674 ms 60396 KB Output is correct
85 Correct 816 ms 59712 KB Output is correct
86 Correct 310 ms 60224 KB Output is correct
87 Correct 373 ms 59708 KB Output is correct
88 Correct 649 ms 7380 KB Output is correct
89 Correct 644 ms 7144 KB Output is correct
90 Correct 713 ms 7040 KB Output is correct
91 Correct 743 ms 6944 KB Output is correct
92 Correct 629 ms 7236 KB Output is correct
93 Correct 627 ms 6844 KB Output is correct
94 Correct 324 ms 42452 KB Output is correct
95 Correct 326 ms 39620 KB Output is correct
96 Correct 832 ms 42320 KB Output is correct
97 Correct 874 ms 40184 KB Output is correct
98 Correct 313 ms 42564 KB Output is correct
99 Correct 301 ms 39944 KB Output is correct
100 Correct 623 ms 7360 KB Output is correct
101 Correct 621 ms 7504 KB Output is correct
102 Correct 650 ms 7124 KB Output is correct
103 Correct 693 ms 7344 KB Output is correct
104 Correct 616 ms 7124 KB Output is correct
105 Correct 594 ms 7500 KB Output is correct
106 Correct 388 ms 50976 KB Output is correct
107 Correct 405 ms 49528 KB Output is correct
108 Correct 1093 ms 51188 KB Output is correct
109 Correct 1157 ms 49348 KB Output is correct
110 Correct 354 ms 51344 KB Output is correct
111 Correct 364 ms 49576 KB Output is correct
112 Correct 648 ms 7244 KB Output is correct
113 Correct 658 ms 7280 KB Output is correct
114 Correct 708 ms 6856 KB Output is correct
115 Correct 717 ms 7036 KB Output is correct
116 Correct 638 ms 7032 KB Output is correct
117 Correct 636 ms 7264 KB Output is correct
118 Correct 285 ms 59924 KB Output is correct
119 Correct 344 ms 50696 KB Output is correct
120 Correct 358 ms 49276 KB Output is correct
121 Correct 281 ms 59828 KB Output is correct
122 Correct 333 ms 50628 KB Output is correct
123 Correct 356 ms 49080 KB Output is correct
124 Correct 874 ms 60352 KB Output is correct
125 Correct 1352 ms 51264 KB Output is correct
126 Correct 1378 ms 49416 KB Output is correct