oj.uz

답안 #882862

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
882862 2023-12-03T23:15:40 Z MilosMilutinovic Wild Boar (JOI18_wild_boar) C++14
47 / 100
 18000 ms 562956 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n, m, t, l;
  cin >> n >> m >> t >> l;
  vector<vector<pair<int, int>>> g(n);
  for (int i = 0; i < m; i++) {
    int x, y, z;
    cin >> x >> y >> z;
    --x; --y;
    g[x].emplace_back(y, z);
    g[y].emplace_back(x, z);
  }
  vector<int> seq(l);
  for (int i = 0; i < l; i++) {
    cin >> seq[i];
    --seq[i];
  }
  {
    int p, x;
    cin >> p >> x;
    --p; --x;
    seq[p] = x;
  }
  vector<int> deg(n);
  for (int i = 0; i < n; i++) {
    deg[i] = (int) g[i].size();
  }
  vector<vector<int>> idx(n, vector<int>(n));
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < deg[i]; j++) {
      idx[i][g[i][j].first] = j;
    }
  }
  const long long inf = (long long) 1e18;
  vector<vector<vector<vector<long long>>>> dist(n, vector<vector<vector<long long>>>(n));
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < n; j++) {
      dist[i][j].resize(deg[i]);
      for (int k = 0; k < deg[i]; k++) {
        dist[i][j][k] = vector<long long>(deg[j], inf);
      }
    }
  }
  vector<vector<long long>> d(n);      
  vector<int> cnt(n);
  for (int ver = 0; ver < n; ver++) {
    for (int e = 0; e < deg[ver]; e++) {
      for (int i = 0; i < n; i++) {
        d[i] = vector<long long>(deg[i], inf);
        cnt[i] = 0;
      }
      int to = g[ver][e].first;
      int w = g[ver][e].second;
      d[to][idx[to][ver]] = w;
      set<tuple<long long, int, int>> st;
      st.emplace(d[to][idx[to][ver]], to, idx[to][ver]);
      while (!st.empty()) {
        auto it = st.begin();
        int v = get<1>(*it);
        int lst = get<2>(*it);
        st.erase(it);
        cnt[v] += 1;
        if (cnt[v] >= 3) {
          continue;
        }
        for (int i = 0; i < deg[v]; i++) {
          if (i == lst) {
            continue;
          }
          int to = g[v][i].first;
          int w = g[v][i].second;
          if (d[to][idx[to][v]] > d[v][lst] + w) {
            if (d[to][idx[to][v]] != inf) {
              st.erase(st.find({d[to][idx[to][v]], to, idx[to][v]}));
            }
            d[to][idx[to][v]] = d[v][lst] + w;
            st.emplace(d[to][idx[to][v]], to, idx[to][v]);
          }
        }
      }
      for (int i = 0; i < n; i++) {
        for (int j = 0; j < deg[i]; j++) {
          dist[ver][i][e][j] = d[i][j];
        }
      }
    }
  }
  vector<vector<vector<vector<int>>>> good(n, vector<vector<vector<int>>>(n));
  int cnt_edges = 0;
  for (int from = 0; from < n; from++) {
    for (int to = 0; to < n; to++) {
      if (from == to) {
        continue;
      }
      good[from][to].resize(deg[from]);
      vector<int> order(deg[to]);
      iota(order.begin(), order.end(), 0);
      for (int i = 0; i < deg[from]; i++) {
        sort(order.begin(), order.end(), [&](int a, int b) {
          return dist[from][to][i][a] < dist[from][to][i][b]; 
        });
        for (int j = 0; j < min(deg[to], 3); j++) {
          good[from][to][i].push_back(order[j]);
          cnt_edges++;
        }
      }
    }
  }
  assert(cnt_edges <= n * m * 6);
  vector<long long> dp(n, inf);
  for (int i = 0; i < deg[seq[0]]; i++) {
    for (int j = 0; j < deg[seq[1]]; j++) {
      dp[j] = min(dp[j], dist[seq[0]][seq[1]][i][j]);
    }
  }
  vector<long long> new_dp(n);
  vector<long long> val(n);
  for (int p = 2; p < l; p++) {
    for (int i = 0; i < deg[seq[p]]; i++) {
      new_dp[i] = inf;
    }
    for (int i = 0; i < deg[seq[p - 1]]; i++) {
      val[i] = inf;
    }
    for (int i = 0; i < deg[seq[p - 1]]; i++) {
      for (int j = 0; j < deg[seq[p - 1]]; j++) {
        if (i != j) {
          val[i] = min(val[i], dp[j]);
        }
      }
    }
    for (int i = 0; i < deg[seq[p - 1]]; i++) {
      for (int j : good[seq[p - 1]][seq[p]][i]) {
        new_dp[j] = min(new_dp[j], val[i] + dist[seq[p - 1]][seq[p]][i][j]);
      }
    }
    for (int i = 0; i < deg[seq[p]]; i++) {
      dp[i] = new_dp[i];
    }
  }
  long long res = inf;
  for (int i = 0; i < deg[seq.back()]; i++) {
    res = min(res, dp[i]);
  }
  cout << (res == inf ? -1 : res) << '\n';
  return 0;
}

Subtask #1
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct

Subtask #2
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 18 ms 3700 KB Output is correct
28 Correct 15 ms 3676 KB Output is correct
29 Correct 96 ms 9788 KB Output is correct
30 Correct 155 ms 9564 KB Output is correct
31 Correct 599 ms 9552 KB Output is correct
32 Correct 586 ms 9556 KB Output is correct
33 Correct 92 ms 13392 KB Output is correct
34 Correct 90 ms 13396 KB Output is correct
35 Correct 702 ms 13236 KB Output is correct
36 Correct 369 ms 13392 KB Output is correct
37 Correct 93 ms 13368 KB Output is correct
38 Correct 120 ms 17492 KB Output is correct
39 Correct 218 ms 17748 KB Output is correct
40 Correct 96 ms 17488 KB Output is correct
41 Correct 110 ms 17520 KB Output is correct
42 Correct 238 ms 20304 KB Output is correct
43 Correct 112 ms 22100 KB Output is correct
44 Correct 129 ms 22056 KB Output is correct
45 Correct 69 ms 27968 KB Output is correct

Subtask #3
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 18 ms 3700 KB Output is correct
28 Correct 15 ms 3676 KB Output is correct
29 Correct 96 ms 9788 KB Output is correct
30 Correct 155 ms 9564 KB Output is correct
31 Correct 599 ms 9552 KB Output is correct
32 Correct 586 ms 9556 KB Output is correct
33 Correct 92 ms 13392 KB Output is correct
34 Correct 90 ms 13396 KB Output is correct
35 Correct 702 ms 13236 KB Output is correct
36 Correct 369 ms 13392 KB Output is correct
37 Correct 93 ms 13368 KB Output is correct
38 Correct 120 ms 17492 KB Output is correct
39 Correct 218 ms 17748 KB Output is correct
40 Correct 96 ms 17488 KB Output is correct
41 Correct 110 ms 17520 KB Output is correct
42 Correct 238 ms 20304 KB Output is correct
43 Correct 112 ms 22100 KB Output is correct
44 Correct 129 ms 22056 KB Output is correct
45 Correct 69 ms 27968 KB Output is correct
46 Correct 218 ms 29268 KB Output is correct
47 Correct 14191 ms 324340 KB Output is correct
48 Correct 16480 ms 463776 KB Output is correct
49 Correct 8359 ms 562860 KB Output is correct
50 Correct 11118 ms 562956 KB Output is correct
51 Execution timed out 18052 ms 560972 KB Time limit exceeded
52 Halted 0 ms 0 KB -

Subtask #4
0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 18 ms 3700 KB Output is correct
28 Correct 15 ms 3676 KB Output is correct
29 Correct 96 ms 9788 KB Output is correct
30 Correct 155 ms 9564 KB Output is correct
31 Correct 599 ms 9552 KB Output is correct
32 Correct 586 ms 9556 KB Output is correct
33 Correct 92 ms 13392 KB Output is correct
34 Correct 90 ms 13396 KB Output is correct
35 Correct 702 ms 13236 KB Output is correct
36 Correct 369 ms 13392 KB Output is correct
37 Correct 93 ms 13368 KB Output is correct
38 Correct 120 ms 17492 KB Output is correct
39 Correct 218 ms 17748 KB Output is correct
40 Correct 96 ms 17488 KB Output is correct
41 Correct 110 ms 17520 KB Output is correct
42 Correct 238 ms 20304 KB Output is correct
43 Correct 112 ms 22100 KB Output is correct
44 Correct 129 ms 22056 KB Output is correct
45 Correct 69 ms 27968 KB Output is correct
46 Correct 218 ms 29268 KB Output is correct
47 Correct 14191 ms 324340 KB Output is correct
48 Correct 16480 ms 463776 KB Output is correct
49 Correct 8359 ms 562860 KB Output is correct
50 Correct 11118 ms 562956 KB Output is correct
51 Execution timed out 18052 ms 560972 KB Time limit exceeded
52 Halted 0 ms 0 KB -