oj.uz

답안 #882868

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
882868 2023-12-03T23:38:30 Z MilosMilutinovic Wild Boar (JOI18_wild_boar) C++14
47 / 100
 18000 ms 560984 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);
  for (int i = 0; i < n; i++) {
    d[i].resize(deg[i]);
  }
  vector<int> cnt(n);
  set<tuple<long long, int, int>> st;
  for (int ver = 0; ver < n; ver++) {
    for (int e = 0; e < deg[ver]; e++) {
      for (int i = 0; i < n; i++) {
        for (int j = 0; j < deg[i]; j++) {
          d[i][j] = inf;
        }
        cnt[i] = 0;
      }
      int to = g[ver][e].first;
      int w = g[ver][e].second;
      d[to][idx[to][ver]] = w;
      st.clear();
      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));
  for (int from = 0; from < n; from++) {
    for (int to = 0; to < n; to++) {
      if (from == to) {
        continue;
      }
      good[from][to].resize(deg[from]);
      for (int i = 0; i < deg[from]; i++) {
        int x = -1, y = -1;
        for (int j = 0; j < deg[to]; j++) {
          if (x == -1 || dist[from][to][i][j] < dist[from][to][i][x]) {
            y = x;
            x = j; 
          } else if (y == -1 || dist[from][to][i][j] < dist[from][to][i][y]) {
            y = j;
          }
        }  
        if (x != -1) {
          good[from][to][i].push_back(x);
        }
        if (y != -1) {
          good[from][to][i].push_back(y);
        }
      }
    }
  }
  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 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 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 1 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 600 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 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 1 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 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 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 1 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 600 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 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 1 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 14 ms 3676 KB Output is correct
28 Correct 14 ms 3676 KB Output is correct
29 Correct 84 ms 9736 KB Output is correct
30 Correct 134 ms 9552 KB Output is correct
31 Correct 578 ms 9556 KB Output is correct
32 Correct 571 ms 9552 KB Output is correct
33 Correct 83 ms 13360 KB Output is correct
34 Correct 98 ms 13340 KB Output is correct
35 Correct 859 ms 13516 KB Output is correct
36 Correct 357 ms 13340 KB Output is correct
37 Correct 84 ms 13336 KB Output is correct
38 Correct 92 ms 17492 KB Output is correct
39 Correct 209 ms 17640 KB Output is correct
40 Correct 90 ms 17532 KB Output is correct
41 Correct 101 ms 17288 KB Output is correct
42 Correct 224 ms 20304 KB Output is correct
43 Correct 103 ms 22100 KB Output is correct
44 Correct 114 ms 22276 KB Output is correct
45 Correct 62 ms 27740 KB Output is correct

Subtask #3
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 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 1 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 600 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 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 1 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 14 ms 3676 KB Output is correct
28 Correct 14 ms 3676 KB Output is correct
29 Correct 84 ms 9736 KB Output is correct
30 Correct 134 ms 9552 KB Output is correct
31 Correct 578 ms 9556 KB Output is correct
32 Correct 571 ms 9552 KB Output is correct
33 Correct 83 ms 13360 KB Output is correct
34 Correct 98 ms 13340 KB Output is correct
35 Correct 859 ms 13516 KB Output is correct
36 Correct 357 ms 13340 KB Output is correct
37 Correct 84 ms 13336 KB Output is correct
38 Correct 92 ms 17492 KB Output is correct
39 Correct 209 ms 17640 KB Output is correct
40 Correct 90 ms 17532 KB Output is correct
41 Correct 101 ms 17288 KB Output is correct
42 Correct 224 ms 20304 KB Output is correct
43 Correct 103 ms 22100 KB Output is correct
44 Correct 114 ms 22276 KB Output is correct
45 Correct 62 ms 27740 KB Output is correct
46 Correct 205 ms 29240 KB Output is correct
47 Correct 13390 ms 320464 KB Output is correct
48 Correct 13531 ms 460704 KB Output is correct
49 Correct 8012 ms 560984 KB Output is correct
50 Correct 10164 ms 560804 KB Output is correct
51 Execution timed out 18063 ms 557852 KB Time limit exceeded
52 Halted 0 ms 0 KB -

Subtask #4
0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 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 1 ms 348 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 600 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 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 1 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 14 ms 3676 KB Output is correct
28 Correct 14 ms 3676 KB Output is correct
29 Correct 84 ms 9736 KB Output is correct
30 Correct 134 ms 9552 KB Output is correct
31 Correct 578 ms 9556 KB Output is correct
32 Correct 571 ms 9552 KB Output is correct
33 Correct 83 ms 13360 KB Output is correct
34 Correct 98 ms 13340 KB Output is correct
35 Correct 859 ms 13516 KB Output is correct
36 Correct 357 ms 13340 KB Output is correct
37 Correct 84 ms 13336 KB Output is correct
38 Correct 92 ms 17492 KB Output is correct
39 Correct 209 ms 17640 KB Output is correct
40 Correct 90 ms 17532 KB Output is correct
41 Correct 101 ms 17288 KB Output is correct
42 Correct 224 ms 20304 KB Output is correct
43 Correct 103 ms 22100 KB Output is correct
44 Correct 114 ms 22276 KB Output is correct
45 Correct 62 ms 27740 KB Output is correct
46 Correct 205 ms 29240 KB Output is correct
47 Correct 13390 ms 320464 KB Output is correct
48 Correct 13531 ms 460704 KB Output is correct
49 Correct 8012 ms 560984 KB Output is correct
50 Correct 10164 ms 560804 KB Output is correct
51 Execution timed out 18063 ms 557852 KB Time limit exceeded
52 Halted 0 ms 0 KB -