답안 #882873

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
882873	2023-12-03T23:54:55 Z	MilosMilutinovic	Wild Boar (JOI18_wild_boar)	C++14	62 / 100	4062 ms	955916 KB

wild_boar

#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 = i + 1; 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> ia(n), ib(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;
        }
        ia[i] = -1;
        ib[i] = -1;
      }
      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]);
      auto Update = [&](int x, int y, long long z) {
        if (ia[x] == y || ib[x] == y) {
          st.erase(st.find({d[x][y], x, y}));
        }
        d[x][y] = z;
        if (ia[x] == y) {
          return;
        }
        if (ib[x] == y) {
          if (d[x][y] < d[x][ia[x]]) {
            swap(ia[x], ib[x]);
          }
          return;
        }
        if (ia[x] == -1) {
          ia[x] = y;
          st.emplace(d[x][y], x, y);
          return;
        }
        if (ib[x] == -1) {
          if (d[x][y] < d[x][ia[x]]) {
            swap(ia[x], ib[x]);
            ia[x] = y;
          } else {
            ib[x] = y;
          }
          st.emplace(d[x][y], x, y);
          return;
        }
        if (d[x][y] >= d[x][ia[x]] && d[x][y] < d[x][ib[x]]) {
          st.erase(st.find({d[x][ib[x]], x, ib[x]}));
          ib[x] = y;
          st.emplace(d[x][y], x, y);
          return;
        }
        if (d[x][y] < d[x][ia[x]]) {
          st.erase(st.find({d[x][ib[x]], x, ib[x]}));
          swap(ia[x], ib[x]);
          ia[x] = y;
          st.emplace(d[x][y], x, y);
        }
      };
      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) {
            Update(to, idx[to][v], d[v][lst] + w);
          }
        }
      }
      for (int i = ver + 1; 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++) {
        if (from < to) {
          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);
          }
        } else {
          int x = -1, y = -1;
          for (int j = 0; j < deg[to]; j++) {
            if (x == -1 || dist[to][from][j][i] < dist[to][from][x][i]) {
              y = x;
              x = j; 
            } else if (y == -1 || dist[to][from][j][i] < dist[to][from][y][i]) {
              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++) {
      if (seq[0] <= seq[1]) {
        dp[j] = min(dp[j], dist[seq[0]][seq[1]][i][j]);
      } else {
        dp[j] = min(dp[j], dist[seq[1]][seq[0]][j][i]);
      }
    }
  }
  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;
    }
    {
      long long mn = inf;
      for (int i = 0; i < deg[seq[p - 1]]; i++) {
        val[i] = min(val[i], mn);
        mn = min(mn, dp[i]);
      }  
    }
    {
      long long mn = inf;
      for (int i = deg[seq[p - 1]] - 1; i >= 0; i--) {
        val[i] = min(val[i], mn);
        mn = min(mn, dp[i]);
      }
    }
    for (int i = 0; i < deg[seq[p - 1]]; i++) {
      if (val[i] != inf) {
        for (int j : good[seq[p - 1]][seq[p]][i]) {
          if (seq[p - 1] <= seq[p]) {
            new_dp[j] = min(new_dp[j], val[i] + dist[seq[p - 1]][seq[p]][i][j]);
          } else {
            new_dp[j] = min(new_dp[j], val[i] + dist[seq[p]][seq[p - 1]][j][i]);
          }
        }
      }
    }
    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	1 ms	344 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	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	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 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	1 ms	344 KB	Output is correct
16	Correct	1 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	1 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	1 ms	344 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	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	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 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	1 ms	344 KB	Output is correct
16	Correct	1 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	1 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	11 ms	3116 KB	Output is correct
28	Correct	11 ms	3164 KB	Output is correct
29	Correct	57 ms	7232 KB	Output is correct
30	Correct	71 ms	7516 KB	Output is correct
31	Correct	124 ms	7256 KB	Output is correct
32	Correct	121 ms	7504 KB	Output is correct
33	Correct	66 ms	10064 KB	Output is correct
34	Correct	74 ms	10324 KB	Output is correct
35	Correct	132 ms	10592 KB	Output is correct
36	Correct	107 ms	10620 KB	Output is correct
37	Correct	67 ms	10200 KB	Output is correct
38	Correct	82 ms	13652 KB	Output is correct
39	Correct	97 ms	14164 KB	Output is correct
40	Correct	75 ms	13732 KB	Output is correct
41	Correct	75 ms	13652 KB	Output is correct
42	Correct	101 ms	16156 KB	Output is correct
43	Correct	107 ms	17492 KB	Output is correct
44	Correct	91 ms	17668 KB	Output is correct
45	Correct	78 ms	22356 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	344 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	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	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 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	1 ms	344 KB	Output is correct
16	Correct	1 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	1 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	11 ms	3116 KB	Output is correct
28	Correct	11 ms	3164 KB	Output is correct
29	Correct	57 ms	7232 KB	Output is correct
30	Correct	71 ms	7516 KB	Output is correct
31	Correct	124 ms	7256 KB	Output is correct
32	Correct	121 ms	7504 KB	Output is correct
33	Correct	66 ms	10064 KB	Output is correct
34	Correct	74 ms	10324 KB	Output is correct
35	Correct	132 ms	10592 KB	Output is correct
36	Correct	107 ms	10620 KB	Output is correct
37	Correct	67 ms	10200 KB	Output is correct
38	Correct	82 ms	13652 KB	Output is correct
39	Correct	97 ms	14164 KB	Output is correct
40	Correct	75 ms	13732 KB	Output is correct
41	Correct	75 ms	13652 KB	Output is correct
42	Correct	101 ms	16156 KB	Output is correct
43	Correct	107 ms	17492 KB	Output is correct
44	Correct	91 ms	17668 KB	Output is correct
45	Correct	78 ms	22356 KB	Output is correct
46	Correct	133 ms	21332 KB	Output is correct
47	Correct	2174 ms	236224 KB	Output is correct
48	Correct	2515 ms	355180 KB	Output is correct
49	Correct	2792 ms	439976 KB	Output is correct
50	Correct	2858 ms	439644 KB	Output is correct
51	Correct	2953 ms	438152 KB	Output is correct
52	Correct	2787 ms	421876 KB	Output is correct
53	Correct	2885 ms	421344 KB	Output is correct
54	Correct	2812 ms	422384 KB	Output is correct
55	Correct	2835 ms	421100 KB	Output is correct
56	Correct	2966 ms	465280 KB	Output is correct
57	Correct	3203 ms	511280 KB	Output is correct
58	Correct	3281 ms	558588 KB	Output is correct
59	Correct	3433 ms	607428 KB	Output is correct
60	Correct	3718 ms	658356 KB	Output is correct
61	Correct	3780 ms	712264 KB	Output is correct
62	Correct	4062 ms	770132 KB	Output is correct
63	Correct	4021 ms	828784 KB	Output is correct
64	Correct	2462 ms	955732 KB	Output is correct
65	Correct	2424 ms	955916 KB	Output is correct

Subtask #4
0 / 38.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	344 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	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	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 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	1 ms	344 KB	Output is correct
16	Correct	1 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	1 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	11 ms	3116 KB	Output is correct
28	Correct	11 ms	3164 KB	Output is correct
29	Correct	57 ms	7232 KB	Output is correct
30	Correct	71 ms	7516 KB	Output is correct
31	Correct	124 ms	7256 KB	Output is correct
32	Correct	121 ms	7504 KB	Output is correct
33	Correct	66 ms	10064 KB	Output is correct
34	Correct	74 ms	10324 KB	Output is correct
35	Correct	132 ms	10592 KB	Output is correct
36	Correct	107 ms	10620 KB	Output is correct
37	Correct	67 ms	10200 KB	Output is correct
38	Correct	82 ms	13652 KB	Output is correct
39	Correct	97 ms	14164 KB	Output is correct
40	Correct	75 ms	13732 KB	Output is correct
41	Correct	75 ms	13652 KB	Output is correct
42	Correct	101 ms	16156 KB	Output is correct
43	Correct	107 ms	17492 KB	Output is correct
44	Correct	91 ms	17668 KB	Output is correct
45	Correct	78 ms	22356 KB	Output is correct
46	Correct	133 ms	21332 KB	Output is correct
47	Correct	2174 ms	236224 KB	Output is correct
48	Correct	2515 ms	355180 KB	Output is correct
49	Correct	2792 ms	439976 KB	Output is correct
50	Correct	2858 ms	439644 KB	Output is correct
51	Correct	2953 ms	438152 KB	Output is correct
52	Correct	2787 ms	421876 KB	Output is correct
53	Correct	2885 ms	421344 KB	Output is correct
54	Correct	2812 ms	422384 KB	Output is correct
55	Correct	2835 ms	421100 KB	Output is correct
56	Correct	2966 ms	465280 KB	Output is correct
57	Correct	3203 ms	511280 KB	Output is correct
58	Correct	3281 ms	558588 KB	Output is correct
59	Correct	3433 ms	607428 KB	Output is correct
60	Correct	3718 ms	658356 KB	Output is correct
61	Correct	3780 ms	712264 KB	Output is correct
62	Correct	4062 ms	770132 KB	Output is correct
63	Correct	4021 ms	828784 KB	Output is correct
64	Correct	2462 ms	955732 KB	Output is correct
65	Correct	2424 ms	955916 KB	Output is correct
66	Incorrect	12 ms	860 KB	Output isn't correct
67	Halted	0 ms	0 KB	-

답안 #882873

Compilation message

Subtask #1 12.0 / 12.0

Subtask #2 35.0 / 35.0

Subtask #3 15.0 / 15.0

Subtask #4 0 / 38.0

Subtask #1
12.0 / 12.0

Subtask #2
35.0 / 35.0

Subtask #3
15.0 / 15.0

Subtask #4
0 / 38.0