# | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
379870 | 2021-03-19T15:09:13 Z | doowey | Robot (JOI21_ho_t4) | C++14 | 2132 ms | 174824 KB |
#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef pair<ll,ll> pii; #define fi first #define se second #define mp make_pair #define fastIO ios::sync_with_stdio(false);cin.tie(0);cout.tie(0); const int N = (int)2e5 + 100; map<int, vector<pii>> E[N]; map<int, ll> cum[N]; map<int, ll> dp[N][2]; map<int, bool> proc[N][2]; int cnt[N]; bool any[N]; struct state{ int node; ll distance; int mode; int color; bool operator< (const state &aq) const { return distance > aq.distance; } }; int main(){ fastIO; int n, m; cin >> n >> m; int ui, vi, ci, pi; for(int i = 1; i <= m; i ++ ){ cin >> ui >> vi >> ci >> pi; E[ui][ci].push_back(mp(vi, pi)); E[vi][ci].push_back(mp(ui, pi)); cum[ui][ci] += pi; cum[vi][ci] += pi; } priority_queue<state> pq; pq.push({1, 0ll, 0ll, 0ll}); dp[1][0][0] = 0; int node; ll dis; int mode; int colr; ll gg; while(!pq.empty()){ node = pq.top().node; dis = pq.top().distance; mode = pq.top().mode; colr = pq.top().color; pq.pop(); if(proc[node][mode][colr]) continue; proc[node][mode][colr] = true; if(mode == false){ if(node == n){ cout << dis << "\n"; return 0; } if(cnt[node] == 2) continue; cnt[node] ++ ; for(auto x : E[node]){ for(auto y : x.se){ gg = dis + y.se; if(!dp[y.fi][0].count(x.fi) || dp[y.fi][0][x.fi] > gg){ dp[y.fi][0][x.fi] = gg; pq.push({y.fi, gg, 0, 0}); } gg = dis; if(!dp[y.fi][1].count(x.fi) || dp[y.fi][1][x.fi] > gg){ dp[y.fi][1][x.fi] = gg; pq.push({y.fi, gg, 1, x.fi}); } if(x.fi != colr){ gg = dis + cum[node][x.fi] - y.se; if(!dp[y.fi][0].count(x.fi) || dp[y.fi][0][x.fi] > gg){ dp[y.fi][0][x.fi] = gg; pq.push({y.fi, gg, 0, x.fi}); } } } } } else{ gg = dis + cum[node][colr]; for(auto x : E[node][colr]){ if(!dp[x.fi][0].count(colr) || dp[x.fi][0][colr] > gg - x.se){ dp[x.fi][0][colr] = gg - x.se; pq.push({x.fi, gg - x.se, 0, colr}); } } } } cout << "-1\n"; return 0; }
Compilation message
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 39 ms | 56684 KB | Output is correct |
2 | Correct | 38 ms | 56812 KB | Output is correct |
3 | Correct | 38 ms | 56684 KB | Output is correct |
4 | Correct | 38 ms | 56684 KB | Output is correct |
5 | Correct | 43 ms | 56812 KB | Output is correct |
6 | Correct | 38 ms | 56684 KB | Output is correct |
7 | Correct | 43 ms | 57068 KB | Output is correct |
8 | Correct | 39 ms | 56812 KB | Output is correct |
9 | Correct | 46 ms | 57964 KB | Output is correct |
10 | Correct | 43 ms | 57580 KB | Output is correct |
11 | Correct | 41 ms | 57324 KB | Output is correct |
12 | Correct | 40 ms | 57196 KB | Output is correct |
13 | Correct | 41 ms | 57452 KB | Output is correct |
14 | Correct | 41 ms | 57324 KB | Output is correct |
15 | Correct | 41 ms | 57196 KB | Output is correct |
16 | Correct | 41 ms | 57324 KB | Output is correct |
17 | Correct | 42 ms | 57324 KB | Output is correct |
18 | Correct | 40 ms | 56940 KB | Output is correct |
19 | Correct | 42 ms | 57068 KB | Output is correct |
20 | Correct | 40 ms | 57196 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 416 ms | 87204 KB | Output is correct |
2 | Correct | 204 ms | 72992 KB | Output is correct |
3 | Correct | 271 ms | 76000 KB | Output is correct |
4 | Correct | 222 ms | 75424 KB | Output is correct |
5 | Correct | 1679 ms | 166356 KB | Output is correct |
6 | Correct | 1333 ms | 147780 KB | Output is correct |
7 | Correct | 530 ms | 111260 KB | Output is correct |
8 | Correct | 687 ms | 111616 KB | Output is correct |
9 | Correct | 713 ms | 111596 KB | Output is correct |
10 | Correct | 636 ms | 106624 KB | Output is correct |
11 | Correct | 197 ms | 74900 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 39 ms | 56684 KB | Output is correct |
2 | Correct | 38 ms | 56812 KB | Output is correct |
3 | Correct | 38 ms | 56684 KB | Output is correct |
4 | Correct | 38 ms | 56684 KB | Output is correct |
5 | Correct | 43 ms | 56812 KB | Output is correct |
6 | Correct | 38 ms | 56684 KB | Output is correct |
7 | Correct | 43 ms | 57068 KB | Output is correct |
8 | Correct | 39 ms | 56812 KB | Output is correct |
9 | Correct | 46 ms | 57964 KB | Output is correct |
10 | Correct | 43 ms | 57580 KB | Output is correct |
11 | Correct | 41 ms | 57324 KB | Output is correct |
12 | Correct | 40 ms | 57196 KB | Output is correct |
13 | Correct | 41 ms | 57452 KB | Output is correct |
14 | Correct | 41 ms | 57324 KB | Output is correct |
15 | Correct | 41 ms | 57196 KB | Output is correct |
16 | Correct | 41 ms | 57324 KB | Output is correct |
17 | Correct | 42 ms | 57324 KB | Output is correct |
18 | Correct | 40 ms | 56940 KB | Output is correct |
19 | Correct | 42 ms | 57068 KB | Output is correct |
20 | Correct | 40 ms | 57196 KB | Output is correct |
21 | Correct | 416 ms | 87204 KB | Output is correct |
22 | Correct | 204 ms | 72992 KB | Output is correct |
23 | Correct | 271 ms | 76000 KB | Output is correct |
24 | Correct | 222 ms | 75424 KB | Output is correct |
25 | Correct | 1679 ms | 166356 KB | Output is correct |
26 | Correct | 1333 ms | 147780 KB | Output is correct |
27 | Correct | 530 ms | 111260 KB | Output is correct |
28 | Correct | 687 ms | 111616 KB | Output is correct |
29 | Correct | 713 ms | 111596 KB | Output is correct |
30 | Correct | 636 ms | 106624 KB | Output is correct |
31 | Correct | 197 ms | 74900 KB | Output is correct |
32 | Correct | 232 ms | 71992 KB | Output is correct |
33 | Correct | 290 ms | 74852 KB | Output is correct |
34 | Correct | 581 ms | 106396 KB | Output is correct |
35 | Correct | 441 ms | 93072 KB | Output is correct |
36 | Correct | 484 ms | 104904 KB | Output is correct |
37 | Correct | 596 ms | 108120 KB | Output is correct |
38 | Correct | 559 ms | 113164 KB | Output is correct |
39 | Correct | 230 ms | 75240 KB | Output is correct |
40 | Correct | 730 ms | 113492 KB | Output is correct |
41 | Correct | 791 ms | 113644 KB | Output is correct |
42 | Correct | 993 ms | 126268 KB | Output is correct |
43 | Correct | 440 ms | 88604 KB | Output is correct |
44 | Correct | 553 ms | 90632 KB | Output is correct |
45 | Correct | 532 ms | 108012 KB | Output is correct |
46 | Correct | 431 ms | 106604 KB | Output is correct |
47 | Correct | 553 ms | 107576 KB | Output is correct |
48 | Correct | 2132 ms | 174824 KB | Output is correct |