# | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
377981 | 2021-03-15T16:51:49 Z | jhwest2 | Robot (JOI21_ho_t4) | C++14 | 595 ms | 78028 KB |
#include <bits/stdc++.h> #define va first #define vb second using namespace std; typedef long long lint; typedef pair<int, int> pint; typedef pair<lint, lint> plint; const int MAX = 4e5 + 10; int n, m; lint D[MAX]; vector<int> A; vector<plint> G[MAX]; vector<pair<int, pint>> V[MAX]; int main() { cin.tie(0); ios_base::sync_with_stdio(0); cin >> n >> m; for (int i = 0; i < m; i++) { int a, b, c, p; cin >> a >> b >> c >> p; V[a].push_back({ c, {p, b} }); V[b].push_back({ c, {p, a} }); } int sz = n; for (int i = 1; i < n; i++) { if (V[i].empty()) continue; sort(V[i].begin(), V[i].end()); for (int l = 0, r = 0; l < V[i].size(); l = r) { lint s = 0; while (r < V[i].size() && V[i][l].va == V[i][r].va) s += V[i][r++].vb.va; if (r - l == 1) G[i].emplace_back(0, V[i][l].vb.vb); else { G[i].emplace_back(0, ++sz); for (int j = l; j < r; j++) { pint x = V[i][j].vb; G[i].emplace_back(x); G[x.vb].emplace_back(0, sz); G[sz].emplace_back(s - x.va, x.vb); } } } } priority_queue<plint> Q; Q.emplace(0, 1); for (int i = 1; i <= sz; i++) D[i] = 4e18; while (!Q.empty()) { auto t = Q.top(); Q.pop(); if (D[t.vb] != 4e18) continue; D[t.vb] = -t.va; for (auto nxt : G[t.vb]) Q.emplace(t.va - nxt.va, nxt.vb); } cout << (D[n] == 4e18 ? -1 : D[n]); }
Compilation message
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 13 ms | 19180 KB | Output is correct |
2 | Correct | 13 ms | 19180 KB | Output is correct |
3 | Correct | 13 ms | 19180 KB | Output is correct |
4 | Correct | 13 ms | 19180 KB | Output is correct |
5 | Correct | 13 ms | 19180 KB | Output is correct |
6 | Correct | 13 ms | 19180 KB | Output is correct |
7 | Correct | 15 ms | 19436 KB | Output is correct |
8 | Correct | 14 ms | 19308 KB | Output is correct |
9 | Correct | 16 ms | 19692 KB | Output is correct |
10 | Correct | 16 ms | 19692 KB | Output is correct |
11 | Correct | 17 ms | 19820 KB | Output is correct |
12 | Correct | 19 ms | 19692 KB | Output is correct |
13 | Correct | 16 ms | 19840 KB | Output is correct |
14 | Correct | 19 ms | 19820 KB | Output is correct |
15 | Correct | 15 ms | 19436 KB | Output is correct |
16 | Correct | 16 ms | 19692 KB | Output is correct |
17 | Correct | 16 ms | 19564 KB | Output is correct |
18 | Correct | 14 ms | 19180 KB | Output is correct |
19 | Correct | 16 ms | 19820 KB | Output is correct |
20 | Correct | 15 ms | 19436 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 258 ms | 38180 KB | Output is correct |
2 | Correct | 88 ms | 27496 KB | Output is correct |
3 | Correct | 388 ms | 52448 KB | Output is correct |
4 | Correct | 144 ms | 31200 KB | Output is correct |
5 | Correct | 465 ms | 65508 KB | Output is correct |
6 | Correct | 495 ms | 64252 KB | Output is correct |
7 | Correct | 423 ms | 72184 KB | Output is correct |
8 | Correct | 529 ms | 61164 KB | Output is correct |
9 | Correct | 566 ms | 61292 KB | Output is correct |
10 | Correct | 306 ms | 45024 KB | Output is correct |
11 | Correct | 181 ms | 40556 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 13 ms | 19180 KB | Output is correct |
2 | Correct | 13 ms | 19180 KB | Output is correct |
3 | Correct | 13 ms | 19180 KB | Output is correct |
4 | Correct | 13 ms | 19180 KB | Output is correct |
5 | Correct | 13 ms | 19180 KB | Output is correct |
6 | Correct | 13 ms | 19180 KB | Output is correct |
7 | Correct | 15 ms | 19436 KB | Output is correct |
8 | Correct | 14 ms | 19308 KB | Output is correct |
9 | Correct | 16 ms | 19692 KB | Output is correct |
10 | Correct | 16 ms | 19692 KB | Output is correct |
11 | Correct | 17 ms | 19820 KB | Output is correct |
12 | Correct | 19 ms | 19692 KB | Output is correct |
13 | Correct | 16 ms | 19840 KB | Output is correct |
14 | Correct | 19 ms | 19820 KB | Output is correct |
15 | Correct | 15 ms | 19436 KB | Output is correct |
16 | Correct | 16 ms | 19692 KB | Output is correct |
17 | Correct | 16 ms | 19564 KB | Output is correct |
18 | Correct | 14 ms | 19180 KB | Output is correct |
19 | Correct | 16 ms | 19820 KB | Output is correct |
20 | Correct | 15 ms | 19436 KB | Output is correct |
21 | Correct | 258 ms | 38180 KB | Output is correct |
22 | Correct | 88 ms | 27496 KB | Output is correct |
23 | Correct | 388 ms | 52448 KB | Output is correct |
24 | Correct | 144 ms | 31200 KB | Output is correct |
25 | Correct | 465 ms | 65508 KB | Output is correct |
26 | Correct | 495 ms | 64252 KB | Output is correct |
27 | Correct | 423 ms | 72184 KB | Output is correct |
28 | Correct | 529 ms | 61164 KB | Output is correct |
29 | Correct | 566 ms | 61292 KB | Output is correct |
30 | Correct | 306 ms | 45024 KB | Output is correct |
31 | Correct | 181 ms | 40556 KB | Output is correct |
32 | Correct | 345 ms | 64368 KB | Output is correct |
33 | Correct | 286 ms | 51932 KB | Output is correct |
34 | Correct | 428 ms | 57180 KB | Output is correct |
35 | Correct | 355 ms | 52312 KB | Output is correct |
36 | Correct | 452 ms | 59600 KB | Output is correct |
37 | Correct | 475 ms | 63808 KB | Output is correct |
38 | Correct | 430 ms | 76224 KB | Output is correct |
39 | Correct | 394 ms | 66652 KB | Output is correct |
40 | Correct | 532 ms | 66612 KB | Output is correct |
41 | Correct | 595 ms | 67052 KB | Output is correct |
42 | Correct | 544 ms | 65492 KB | Output is correct |
43 | Correct | 207 ms | 43356 KB | Output is correct |
44 | Correct | 551 ms | 78028 KB | Output is correct |
45 | Correct | 454 ms | 53996 KB | Output is correct |
46 | Correct | 363 ms | 51948 KB | Output is correct |
47 | Correct | 491 ms | 62800 KB | Output is correct |
48 | Correct | 532 ms | 75736 KB | Output is correct |