oj.uz

답안 #882855

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
882855 2023-12-03T22:15:08 Z MilosMilutinovic Wild Boar (JOI18_wild_boar) C++14
47 / 100
 18000 ms 343428 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);
      }
    }
  }
  for (int ver = 0; ver < n; ver++) {
    for (int e = 0; e < deg[ver]; e++) {
      vector<vector<long long>> d(n);
      for (int i = 0; i < n; i++) {
        d[i] = vector<long long>(deg[i], inf);
      }
      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);
        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));
  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], 5); j++) {
          good[from][to][i].push_back(order[j]);
        }
      }
    }
  }
  vector<long long> dp(deg[seq[1]], 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]);
    }
  }
  for (int p = 2; p < l; p++) {
    vector<long long> new_dp(deg[seq[p]], inf);
    vector<long long> val(deg[seq[p - 1]], inf);
    for (int i = 0; i < (int) val.size(); i++) {
      for (int j = 0; j < (int) val.size(); 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]);
      }
    }
    swap(dp, new_dp);
  }
  long long res = *min_element(dp.begin(), dp.end());
  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 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 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 0 ms 348 KB Output is correct
9 Correct 0 ms 600 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 500 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 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 1 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 0 ms 348 KB Output is correct
25 Correct 1 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 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 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 0 ms 348 KB Output is correct
9 Correct 0 ms 600 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 500 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 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 1 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 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 2 ms 600 KB Output is correct
27 Correct 19 ms 3928 KB Output is correct
28 Correct 19 ms 3676 KB Output is correct
29 Correct 104 ms 10316 KB Output is correct
30 Correct 170 ms 10060 KB Output is correct
31 Correct 698 ms 10056 KB Output is correct
32 Correct 670 ms 9944 KB Output is correct
33 Correct 131 ms 13912 KB Output is correct
34 Correct 105 ms 13652 KB Output is correct
35 Correct 791 ms 13408 KB Output is correct
36 Correct 416 ms 13440 KB Output is correct
37 Correct 104 ms 13744 KB Output is correct
38 Correct 126 ms 17572 KB Output is correct
39 Correct 239 ms 17740 KB Output is correct
40 Correct 114 ms 17748 KB Output is correct
41 Correct 126 ms 17524 KB Output is correct
42 Correct 269 ms 20308 KB Output is correct
43 Correct 113 ms 22312 KB Output is correct
44 Correct 116 ms 22100 KB Output is correct
45 Correct 89 ms 27732 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 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 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 0 ms 348 KB Output is correct
9 Correct 0 ms 600 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 500 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 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 1 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 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 2 ms 600 KB Output is correct
27 Correct 19 ms 3928 KB Output is correct
28 Correct 19 ms 3676 KB Output is correct
29 Correct 104 ms 10316 KB Output is correct
30 Correct 170 ms 10060 KB Output is correct
31 Correct 698 ms 10056 KB Output is correct
32 Correct 670 ms 9944 KB Output is correct
33 Correct 131 ms 13912 KB Output is correct
34 Correct 105 ms 13652 KB Output is correct
35 Correct 791 ms 13408 KB Output is correct
36 Correct 416 ms 13440 KB Output is correct
37 Correct 104 ms 13744 KB Output is correct
38 Correct 126 ms 17572 KB Output is correct
39 Correct 239 ms 17740 KB Output is correct
40 Correct 114 ms 17748 KB Output is correct
41 Correct 126 ms 17524 KB Output is correct
42 Correct 269 ms 20308 KB Output is correct
43 Correct 113 ms 22312 KB Output is correct
44 Correct 116 ms 22100 KB Output is correct
45 Correct 89 ms 27732 KB Output is correct
46 Correct 251 ms 31056 KB Output is correct
47 Execution timed out 18110 ms 343428 KB Time limit exceeded
48 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 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 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 0 ms 348 KB Output is correct
9 Correct 0 ms 600 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 500 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 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 1 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 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 2 ms 600 KB Output is correct
27 Correct 19 ms 3928 KB Output is correct
28 Correct 19 ms 3676 KB Output is correct
29 Correct 104 ms 10316 KB Output is correct
30 Correct 170 ms 10060 KB Output is correct
31 Correct 698 ms 10056 KB Output is correct
32 Correct 670 ms 9944 KB Output is correct
33 Correct 131 ms 13912 KB Output is correct
34 Correct 105 ms 13652 KB Output is correct
35 Correct 791 ms 13408 KB Output is correct
36 Correct 416 ms 13440 KB Output is correct
37 Correct 104 ms 13744 KB Output is correct
38 Correct 126 ms 17572 KB Output is correct
39 Correct 239 ms 17740 KB Output is correct
40 Correct 114 ms 17748 KB Output is correct
41 Correct 126 ms 17524 KB Output is correct
42 Correct 269 ms 20308 KB Output is correct
43 Correct 113 ms 22312 KB Output is correct
44 Correct 116 ms 22100 KB Output is correct
45 Correct 89 ms 27732 KB Output is correct
46 Correct 251 ms 31056 KB Output is correct
47 Execution timed out 18110 ms 343428 KB Time limit exceeded
48 Halted 0 ms 0 KB -