oj.uz

Submission #963738

# Submission time Handle Problem Language Result Execution time Memory
963738 2024-04-15T14:51:31 Z Soumya1 Treatment Project (JOI20_treatment) C++17
100 / 100
 326 ms 34924 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const ll inf = 1e18;
const int l2 = 2e9 + 10;
struct SegmentTree {
  int n;
  vector<pair<int, int>> t;
  vector<multiset<pair<int, int>>> mst;
  SegmentTree(int _n) {
    n = _n;
    t.assign(4 * n, {l2, l2});
    mst.resize(n + 1);
  }
  void update(int x, int lx, int rx, int i, pair<int, int> v, bool erase) {
    if (lx == rx) {
      if (erase) mst[lx].erase(mst[lx].find(v));
      else mst[lx].insert(v);
      if (mst[lx].empty()) t[x] = {l2, l2};
      else t[x] = *mst[lx].begin();
      return;
    }
    int mx = (lx + rx) >> 1;
    if (i <= mx) update(x << 1, lx, mx, i, v, erase);
    else update(x << 1 | 1, mx + 1, rx, i, v, erase);
    t[x] = min(t[x << 1], t[x << 1 | 1]);
  }
  pair<int, int> query(int x, int lx, int rx, int l, int r) {
    if (l > rx || lx > r || l > r) return {l2, l2};
    if (l <= lx && r >= rx) return t[x];
    int mx = (lx + rx) >> 1;
    return min(query(x << 1, lx, mx, l, r), query(x << 1 | 1, mx + 1, rx, l, r));
  }
};
void testCase() {
  int n, m;
  cin >> n >> m;
  vector<int> t(m), l(m), r(m), c(m), all, tt(m);
  for (int i = 0; i < m; i++) {
    cin >> t[i] >> l[i] >> r[i] >> c[i];
    all.push_back(t[i]);
  }
  sort(all.begin(), all.end());
  for (int i = 0; i < m; i++) {
    tt[i] = lower_bound(all.begin(), all.end(), t[i]) - all.begin() + 1;
  }
  SegmentTree st1(m), st2(m);
  for (int i = 0; i < m; i++) {
    st1.update(1, 1, m, tt[i], {l[i] - t[i], i}, false);
    st2.update(1, 1, m, tt[i], {l[i] + t[i], i}, false);
  }
  priority_queue<pair<ll, int>> pq;
  vector<bool> vis(m);
  vector<ll> dist(m, inf);
  for (int i = 0; i < m; i++) {
    if (l[i] == 1) {
      st1.update(1, 1, m, tt[i], {l[i] - t[i], i}, true);
      st2.update(1, 1, m, tt[i], {l[i] + t[i], i}, true);
      dist[i] = c[i];
      pq.push({-dist[i], i});
    }
  }
  while (!pq.empty()) {
    auto [_, u] = pq.top();
    pq.pop();
    if (vis[u]) continue;
    vis[u] = true;
    auto q = st1.query(1, 1, m, 1, tt[u]);
    while (q.first <= r[u] - t[u] + 1) {
      auto [v, i] = q;
      st1.update(1, 1, m, tt[i], {l[i] - t[i], i}, true);
      st2.update(1, 1, m, tt[i], {l[i] + t[i], i}, true);
      dist[i] = dist[u] + c[i];
      pq.push({-dist[i], i});
      q = st1.query(1, 1, m, 1, tt[u]);
    }
    q = st2.query(1, 1, m, tt[u], m);
    while (q.first <= r[u] + t[u] + 1) {
      auto [v, i] = q;
      st1.update(1, 1, m, tt[i], {l[i] - t[i], i}, true);
      st2.update(1, 1, m, tt[i], {l[i] + t[i], i}, true);
      dist[i] = dist[u] + c[i];
      pq.push({-dist[i], i});
      q = st2.query(1, 1, m, tt[u], m);
    }
  }
  ll ans = inf;
  for (int i = 0; i < m; i++) {
    if (r[i] == n) ans = min(ans, dist[i]);
  }
  cout << (ans == inf ? -1 : ans) << "\n";
}
int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  testCase();
  return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 164 ms 28400 KB Output is correct
2 Correct 123 ms 31824 KB Output is correct
3 Correct 155 ms 31876 KB Output is correct
4 Correct 166 ms 31944 KB Output is correct
5 Correct 160 ms 33716 KB Output is correct
6 Correct 137 ms 31772 KB Output is correct
7 Correct 145 ms 31620 KB Output is correct
8 Correct 96 ms 31780 KB Output is correct
9 Correct 82 ms 31648 KB Output is correct
10 Correct 81 ms 31704 KB Output is correct
11 Correct 175 ms 34000 KB Output is correct
12 Correct 202 ms 33764 KB Output is correct
13 Correct 213 ms 33884 KB Output is correct
14 Correct 168 ms 33924 KB Output is correct
15 Correct 175 ms 31816 KB Output is correct
16 Correct 190 ms 31700 KB Output is correct
17 Correct 171 ms 31028 KB Output is correct
18 Correct 169 ms 33252 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory 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 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 1 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 0 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 0 ms 348 KB Output is correct
14 Correct 1 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 428 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory 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 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 1 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 0 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 0 ms 348 KB Output is correct
14 Correct 1 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 428 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 8 ms 1976 KB Output is correct
21 Correct 8 ms 1884 KB Output is correct
22 Correct 9 ms 2004 KB Output is correct
23 Correct 7 ms 2088 KB Output is correct
24 Correct 8 ms 2140 KB Output is correct
25 Correct 8 ms 1944 KB Output is correct
26 Correct 10 ms 2028 KB Output is correct
27 Correct 9 ms 2336 KB Output is correct
28 Correct 9 ms 2140 KB Output is correct
29 Correct 11 ms 1884 KB Output is correct
30 Correct 4 ms 1880 KB Output is correct
31 Correct 5 ms 1880 KB Output is correct
32 Correct 9 ms 2140 KB Output is correct
33 Correct 10 ms 2136 KB Output is correct
34 Correct 9 ms 1884 KB Output is correct
35 Correct 10 ms 2508 KB Output is correct
36 Correct 9 ms 2140 KB Output is correct
37 Correct 9 ms 1884 KB Output is correct

Subtask #4
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 164 ms 28400 KB Output is correct
2 Correct 123 ms 31824 KB Output is correct
3 Correct 155 ms 31876 KB Output is correct
4 Correct 166 ms 31944 KB Output is correct
5 Correct 160 ms 33716 KB Output is correct
6 Correct 137 ms 31772 KB Output is correct
7 Correct 145 ms 31620 KB Output is correct
8 Correct 96 ms 31780 KB Output is correct
9 Correct 82 ms 31648 KB Output is correct
10 Correct 81 ms 31704 KB Output is correct
11 Correct 175 ms 34000 KB Output is correct
12 Correct 202 ms 33764 KB Output is correct
13 Correct 213 ms 33884 KB Output is correct
14 Correct 168 ms 33924 KB Output is correct
15 Correct 175 ms 31816 KB Output is correct
16 Correct 190 ms 31700 KB Output is correct
17 Correct 171 ms 31028 KB Output is correct
18 Correct 169 ms 33252 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 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 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 428 KB Output is correct
36 Correct 1 ms 344 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 8 ms 1976 KB Output is correct
39 Correct 8 ms 1884 KB Output is correct
40 Correct 9 ms 2004 KB Output is correct
41 Correct 7 ms 2088 KB Output is correct
42 Correct 8 ms 2140 KB Output is correct
43 Correct 8 ms 1944 KB Output is correct
44 Correct 10 ms 2028 KB Output is correct
45 Correct 9 ms 2336 KB Output is correct
46 Correct 9 ms 2140 KB Output is correct
47 Correct 11 ms 1884 KB Output is correct
48 Correct 4 ms 1880 KB Output is correct
49 Correct 5 ms 1880 KB Output is correct
50 Correct 9 ms 2140 KB Output is correct
51 Correct 10 ms 2136 KB Output is correct
52 Correct 9 ms 1884 KB Output is correct
53 Correct 10 ms 2508 KB Output is correct
54 Correct 9 ms 2140 KB Output is correct
55 Correct 9 ms 1884 KB Output is correct
56 Correct 269 ms 32092 KB Output is correct
57 Correct 267 ms 32276 KB Output is correct
58 Correct 222 ms 30972 KB Output is correct
59 Correct 239 ms 31188 KB Output is correct
60 Correct 274 ms 32196 KB Output is correct
61 Correct 210 ms 30908 KB Output is correct
62 Correct 226 ms 32080 KB Output is correct
63 Correct 205 ms 31868 KB Output is correct
64 Correct 207 ms 31880 KB Output is correct
65 Correct 171 ms 31872 KB Output is correct
66 Correct 220 ms 31868 KB Output is correct
67 Correct 274 ms 32896 KB Output is correct
68 Correct 245 ms 32536 KB Output is correct
69 Correct 212 ms 32392 KB Output is correct
70 Correct 251 ms 32572 KB Output is correct
71 Correct 232 ms 32376 KB Output is correct
72 Correct 211 ms 32544 KB Output is correct
73 Correct 289 ms 32908 KB Output is correct
74 Correct 119 ms 32312 KB Output is correct
75 Correct 104 ms 32344 KB Output is correct
76 Correct 326 ms 34164 KB Output is correct
77 Correct 276 ms 34752 KB Output is correct
78 Correct 306 ms 34260 KB Output is correct
79 Correct 291 ms 32692 KB Output is correct
80 Correct 269 ms 31952 KB Output is correct
81 Correct 133 ms 32344 KB Output is correct
82 Correct 304 ms 31564 KB Output is correct
83 Correct 316 ms 31956 KB Output is correct
84 Correct 263 ms 31612 KB Output is correct
85 Correct 210 ms 32536 KB Output is correct
86 Correct 223 ms 32360 KB Output is correct
87 Correct 216 ms 32432 KB Output is correct
88 Correct 254 ms 32292 KB Output is correct
89 Correct 206 ms 32372 KB Output is correct
90 Correct 284 ms 34696 KB Output is correct
91 Correct 294 ms 33912 KB Output is correct
92 Correct 242 ms 32476 KB Output is correct
93 Correct 305 ms 32716 KB Output is correct
94 Correct 289 ms 32572 KB Output is correct
95 Correct 265 ms 32488 KB Output is correct
96 Correct 293 ms 34516 KB Output is correct
97 Correct 312 ms 34516 KB Output is correct
98 Correct 274 ms 34924 KB Output is correct
99 Correct 315 ms 34556 KB Output is correct
100 Correct 298 ms 34744 KB Output is correct
101 Correct 292 ms 34640 KB Output is correct
102 Correct 301 ms 34700 KB Output is correct
103 Correct 225 ms 32956 KB Output is correct