oj.uz

Submission #882865

# Submission time Handle Problem Language Result Execution time Memory
882865 2023-12-03T23:23:22 Z MilosMilutinovic Wild Boar (JOI18_wild_boar) C++14
47 / 100
 18000 ms 561052 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++) {
      if (i == j) {
        continue;
      }
      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++) {
        if (i == ver) {
          continue;
        }
        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], 2); 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

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 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 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 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

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 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 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 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 600 KB Output is correct
27 Correct 14 ms 3716 KB Output is correct
28 Correct 14 ms 3676 KB Output is correct
29 Correct 84 ms 9500 KB Output is correct
30 Correct 129 ms 9684 KB Output is correct
31 Correct 597 ms 9556 KB Output is correct
32 Correct 573 ms 9648 KB Output is correct
33 Correct 90 ms 13372 KB Output is correct
34 Correct 88 ms 13264 KB Output is correct
35 Correct 726 ms 13136 KB Output is correct
36 Correct 357 ms 13352 KB Output is correct
37 Correct 97 ms 13188 KB Output is correct
38 Correct 95 ms 17540 KB Output is correct
39 Correct 213 ms 17628 KB Output is correct
40 Correct 95 ms 17488 KB Output is correct
41 Correct 95 ms 17488 KB Output is correct
42 Correct 230 ms 20188 KB Output is correct
43 Correct 104 ms 22264 KB Output is correct
44 Correct 114 ms 22096 KB Output is correct
45 Correct 71 ms 27904 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 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 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 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 600 KB Output is correct
27 Correct 14 ms 3716 KB Output is correct
28 Correct 14 ms 3676 KB Output is correct
29 Correct 84 ms 9500 KB Output is correct
30 Correct 129 ms 9684 KB Output is correct
31 Correct 597 ms 9556 KB Output is correct
32 Correct 573 ms 9648 KB Output is correct
33 Correct 90 ms 13372 KB Output is correct
34 Correct 88 ms 13264 KB Output is correct
35 Correct 726 ms 13136 KB Output is correct
36 Correct 357 ms 13352 KB Output is correct
37 Correct 97 ms 13188 KB Output is correct
38 Correct 95 ms 17540 KB Output is correct
39 Correct 213 ms 17628 KB Output is correct
40 Correct 95 ms 17488 KB Output is correct
41 Correct 95 ms 17488 KB Output is correct
42 Correct 230 ms 20188 KB Output is correct
43 Correct 104 ms 22264 KB Output is correct
44 Correct 114 ms 22096 KB Output is correct
45 Correct 71 ms 27904 KB Output is correct
46 Correct 205 ms 29240 KB Output is correct
47 Correct 13374 ms 320416 KB Output is correct
48 Correct 13219 ms 460668 KB Output is correct
49 Correct 8276 ms 560992 KB Output is correct
50 Correct 10704 ms 561052 KB Output is correct
51 Execution timed out 18145 ms 557900 KB Time limit exceeded
52 Halted 0 ms 0 KB -

Subtask #4
0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 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 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 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 600 KB Output is correct
27 Correct 14 ms 3716 KB Output is correct
28 Correct 14 ms 3676 KB Output is correct
29 Correct 84 ms 9500 KB Output is correct
30 Correct 129 ms 9684 KB Output is correct
31 Correct 597 ms 9556 KB Output is correct
32 Correct 573 ms 9648 KB Output is correct
33 Correct 90 ms 13372 KB Output is correct
34 Correct 88 ms 13264 KB Output is correct
35 Correct 726 ms 13136 KB Output is correct
36 Correct 357 ms 13352 KB Output is correct
37 Correct 97 ms 13188 KB Output is correct
38 Correct 95 ms 17540 KB Output is correct
39 Correct 213 ms 17628 KB Output is correct
40 Correct 95 ms 17488 KB Output is correct
41 Correct 95 ms 17488 KB Output is correct
42 Correct 230 ms 20188 KB Output is correct
43 Correct 104 ms 22264 KB Output is correct
44 Correct 114 ms 22096 KB Output is correct
45 Correct 71 ms 27904 KB Output is correct
46 Correct 205 ms 29240 KB Output is correct
47 Correct 13374 ms 320416 KB Output is correct
48 Correct 13219 ms 460668 KB Output is correct
49 Correct 8276 ms 560992 KB Output is correct
50 Correct 10704 ms 561052 KB Output is correct
51 Execution timed out 18145 ms 557900 KB Time limit exceeded
52 Halted 0 ms 0 KB -