#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int n, m, s, t, u, v, a, b, c, x;
vector<bool> vis;
vector<ll> dis, diss, dist, disu, disv;
int main() {
ios::sync_with_stdio(false); cin.tie(nullptr);
cin >> n >> m >> s >> t >> u >> v;
vector<pair<int, int>> E[n + 1];
while (m--) {
cin >> a >> b >> c;
E[a].push_back({b, c});
E[b].push_back({a, c});
}
auto f = [&](int st) -> vector<ll>{
dis.assign(n + 1, LLONG_MAX); dis[st] = 0;
priority_queue<pair<ll, int>, vector<pair<ll, int>>, greater<>> q;
q.push({0, st});
while (!q.empty()) {
x = q.top().second; q.pop();
for (auto i : E[x]) {
if (dis[x] + i.second < dis[i.first]) {
dis[i.first] = dis[x] + i.second;
q.push({dis[i.first], i.first});
}
}
}
return dis;
};
diss = f(s); dist = f(t);
disu = f(u); disv = f(v);
ll ans = disu[v];
vis.assign(n + 1, false);
priority_queue<vector<ll>> q;
q.push({0, -(disu[s] + disv[s]), s, disu[s], disv[s]});
while (!q.empty()) {
vector<ll> v = q.top(); q.pop();
// for(ll x : v) cout<<x<<' ';
// cout<<'\n';
if (v[2] == t) {
ans = min(ans, -v[1]);
continue;
}
if (vis[v[2]]) continue;
vis[v[2]] = true;
for (auto i : E[v[2]]) {
if (diss[v[2]] + i.second == diss[i.first] && diss[i.first] + dist[i.first] == diss[t]) {
ll a = min(v[3], disu[i.first]), b = min(v[4], disv[i.first]);
q.push({-diss[i.first], -(a + b), i.first, a, b});
}
}
}
cout << ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
232 ms |
15256 KB |
Output is correct |
2 |
Correct |
243 ms |
14104 KB |
Output is correct |
3 |
Correct |
219 ms |
13788 KB |
Output is correct |
4 |
Correct |
222 ms |
15076 KB |
Output is correct |
5 |
Correct |
237 ms |
13944 KB |
Output is correct |
6 |
Correct |
212 ms |
15240 KB |
Output is correct |
7 |
Correct |
281 ms |
13920 KB |
Output is correct |
8 |
Correct |
239 ms |
13784 KB |
Output is correct |
9 |
Correct |
191 ms |
13768 KB |
Output is correct |
10 |
Correct |
166 ms |
13636 KB |
Output is correct |
11 |
Correct |
73 ms |
9808 KB |
Output is correct |
12 |
Correct |
259 ms |
13968 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
252 ms |
14016 KB |
Output is correct |
2 |
Correct |
279 ms |
14200 KB |
Output is correct |
3 |
Correct |
237 ms |
14060 KB |
Output is correct |
4 |
Correct |
270 ms |
14072 KB |
Output is correct |
5 |
Correct |
211 ms |
13940 KB |
Output is correct |
6 |
Correct |
262 ms |
13872 KB |
Output is correct |
7 |
Correct |
261 ms |
13968 KB |
Output is correct |
8 |
Correct |
228 ms |
14100 KB |
Output is correct |
9 |
Correct |
209 ms |
13940 KB |
Output is correct |
10 |
Correct |
203 ms |
13936 KB |
Output is correct |
11 |
Correct |
64 ms |
9792 KB |
Output is correct |
12 |
Correct |
188 ms |
13796 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
1368 KB |
Output is correct |
2 |
Correct |
1 ms |
344 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
9 ms |
1624 KB |
Output is correct |
5 |
Correct |
6 ms |
1112 KB |
Output is correct |
6 |
Correct |
1 ms |
344 KB |
Output is correct |
7 |
Correct |
1 ms |
344 KB |
Output is correct |
8 |
Correct |
2 ms |
600 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
6 ms |
1368 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
14 |
Correct |
1 ms |
344 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
232 ms |
15256 KB |
Output is correct |
2 |
Correct |
243 ms |
14104 KB |
Output is correct |
3 |
Correct |
219 ms |
13788 KB |
Output is correct |
4 |
Correct |
222 ms |
15076 KB |
Output is correct |
5 |
Correct |
237 ms |
13944 KB |
Output is correct |
6 |
Correct |
212 ms |
15240 KB |
Output is correct |
7 |
Correct |
281 ms |
13920 KB |
Output is correct |
8 |
Correct |
239 ms |
13784 KB |
Output is correct |
9 |
Correct |
191 ms |
13768 KB |
Output is correct |
10 |
Correct |
166 ms |
13636 KB |
Output is correct |
11 |
Correct |
73 ms |
9808 KB |
Output is correct |
12 |
Correct |
259 ms |
13968 KB |
Output is correct |
13 |
Correct |
252 ms |
14016 KB |
Output is correct |
14 |
Correct |
279 ms |
14200 KB |
Output is correct |
15 |
Correct |
237 ms |
14060 KB |
Output is correct |
16 |
Correct |
270 ms |
14072 KB |
Output is correct |
17 |
Correct |
211 ms |
13940 KB |
Output is correct |
18 |
Correct |
262 ms |
13872 KB |
Output is correct |
19 |
Correct |
261 ms |
13968 KB |
Output is correct |
20 |
Correct |
228 ms |
14100 KB |
Output is correct |
21 |
Correct |
209 ms |
13940 KB |
Output is correct |
22 |
Correct |
203 ms |
13936 KB |
Output is correct |
23 |
Correct |
64 ms |
9792 KB |
Output is correct |
24 |
Correct |
188 ms |
13796 KB |
Output is correct |
25 |
Correct |
8 ms |
1368 KB |
Output is correct |
26 |
Correct |
1 ms |
344 KB |
Output is correct |
27 |
Correct |
1 ms |
348 KB |
Output is correct |
28 |
Correct |
9 ms |
1624 KB |
Output is correct |
29 |
Correct |
6 ms |
1112 KB |
Output is correct |
30 |
Correct |
1 ms |
344 KB |
Output is correct |
31 |
Correct |
1 ms |
344 KB |
Output is correct |
32 |
Correct |
2 ms |
600 KB |
Output is correct |
33 |
Correct |
1 ms |
344 KB |
Output is correct |
34 |
Correct |
6 ms |
1368 KB |
Output is correct |
35 |
Correct |
1 ms |
344 KB |
Output is correct |
36 |
Correct |
1 ms |
348 KB |
Output is correct |
37 |
Correct |
1 ms |
344 KB |
Output is correct |
38 |
Correct |
1 ms |
344 KB |
Output is correct |
39 |
Correct |
1 ms |
348 KB |
Output is correct |
40 |
Correct |
228 ms |
17676 KB |
Output is correct |
41 |
Correct |
228 ms |
16596 KB |
Output is correct |
42 |
Correct |
196 ms |
16492 KB |
Output is correct |
43 |
Correct |
67 ms |
11348 KB |
Output is correct |
44 |
Correct |
98 ms |
11476 KB |
Output is correct |
45 |
Correct |
240 ms |
18496 KB |
Output is correct |
46 |
Correct |
259 ms |
18368 KB |
Output is correct |
47 |
Correct |
170 ms |
17368 KB |
Output is correct |
48 |
Correct |
90 ms |
11088 KB |
Output is correct |
49 |
Correct |
165 ms |
17408 KB |
Output is correct |
50 |
Correct |
232 ms |
18364 KB |
Output is correct |
51 |
Correct |
266 ms |
18588 KB |
Output is correct |