#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define x first
#define y second
ll N, M, X;
ll H[100005];
vector<pair<ll, ll>> G[100005];
const ll INF = 1e15;
ll mh[100005];
int main(){
cin.tie(0) -> sync_with_stdio(false);
cin >> N >> M >> X;
for(int i = 1; i <= N; i++){
cin >> H[i];
mh[i] = INF;
}
for(int i = 1; i <= M; i++){
ll u, v, c; cin >> u >> v >> c;
if(H[u] >= c) G[u].push_back({v, c});
if(H[v] >= c) G[v].push_back({u, c});
}
priority_queue<pair<ll, ll>> PQ;
PQ.push({X, 1});
while(!PQ.empty()){
ll d = PQ.top().x, u = PQ.top().y; PQ.pop();
if(mh[u] != INF) continue;
mh[u] = d;
for(auto i : G[u]){
if(mh[i.x] != INF) continue;
PQ.push({min(d - i.y, H[i.x]), i.x});
}
}
cout << (mh[N] == INF ? -1 : X + H[N] - mh[N] * 2);
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2644 KB |
Output is correct |
2 |
Correct |
2 ms |
2772 KB |
Output is correct |
3 |
Correct |
3 ms |
2772 KB |
Output is correct |
4 |
Correct |
2 ms |
2688 KB |
Output is correct |
5 |
Correct |
3 ms |
2772 KB |
Output is correct |
6 |
Correct |
2 ms |
2644 KB |
Output is correct |
7 |
Correct |
3 ms |
2692 KB |
Output is correct |
8 |
Correct |
3 ms |
2772 KB |
Output is correct |
9 |
Correct |
3 ms |
2828 KB |
Output is correct |
10 |
Correct |
3 ms |
2772 KB |
Output is correct |
11 |
Correct |
2 ms |
2644 KB |
Output is correct |
12 |
Correct |
12 ms |
2824 KB |
Output is correct |
13 |
Correct |
3 ms |
2772 KB |
Output is correct |
14 |
Correct |
2 ms |
2772 KB |
Output is correct |
15 |
Correct |
3 ms |
2772 KB |
Output is correct |
16 |
Correct |
2 ms |
2696 KB |
Output is correct |
17 |
Correct |
2 ms |
2644 KB |
Output is correct |
18 |
Correct |
2 ms |
2644 KB |
Output is correct |
19 |
Correct |
2 ms |
2644 KB |
Output is correct |
20 |
Correct |
2 ms |
2692 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
140 ms |
15316 KB |
Output is correct |
2 |
Correct |
192 ms |
32620 KB |
Output is correct |
3 |
Correct |
119 ms |
14284 KB |
Output is correct |
4 |
Correct |
192 ms |
25664 KB |
Output is correct |
5 |
Correct |
161 ms |
31228 KB |
Output is correct |
6 |
Correct |
6 ms |
2956 KB |
Output is correct |
7 |
Correct |
99 ms |
9708 KB |
Output is correct |
8 |
Correct |
213 ms |
22152 KB |
Output is correct |
9 |
Correct |
86 ms |
11724 KB |
Output is correct |
10 |
Correct |
63 ms |
8308 KB |
Output is correct |
11 |
Correct |
16 ms |
4664 KB |
Output is correct |
12 |
Correct |
108 ms |
16128 KB |
Output is correct |
13 |
Correct |
60 ms |
16888 KB |
Output is correct |
14 |
Correct |
95 ms |
10392 KB |
Output is correct |
15 |
Correct |
6 ms |
3284 KB |
Output is correct |
16 |
Correct |
162 ms |
27132 KB |
Output is correct |
17 |
Correct |
12 ms |
4564 KB |
Output is correct |
18 |
Correct |
14 ms |
5036 KB |
Output is correct |
19 |
Correct |
34 ms |
5920 KB |
Output is correct |
20 |
Correct |
16 ms |
5204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2644 KB |
Output is correct |
2 |
Correct |
2 ms |
2772 KB |
Output is correct |
3 |
Correct |
3 ms |
2772 KB |
Output is correct |
4 |
Correct |
2 ms |
2688 KB |
Output is correct |
5 |
Correct |
3 ms |
2772 KB |
Output is correct |
6 |
Correct |
2 ms |
2644 KB |
Output is correct |
7 |
Correct |
3 ms |
2692 KB |
Output is correct |
8 |
Correct |
3 ms |
2772 KB |
Output is correct |
9 |
Correct |
3 ms |
2828 KB |
Output is correct |
10 |
Correct |
3 ms |
2772 KB |
Output is correct |
11 |
Correct |
2 ms |
2644 KB |
Output is correct |
12 |
Correct |
12 ms |
2824 KB |
Output is correct |
13 |
Correct |
3 ms |
2772 KB |
Output is correct |
14 |
Correct |
2 ms |
2772 KB |
Output is correct |
15 |
Correct |
3 ms |
2772 KB |
Output is correct |
16 |
Correct |
2 ms |
2696 KB |
Output is correct |
17 |
Correct |
2 ms |
2644 KB |
Output is correct |
18 |
Correct |
2 ms |
2644 KB |
Output is correct |
19 |
Correct |
2 ms |
2644 KB |
Output is correct |
20 |
Correct |
2 ms |
2692 KB |
Output is correct |
21 |
Correct |
140 ms |
15316 KB |
Output is correct |
22 |
Correct |
192 ms |
32620 KB |
Output is correct |
23 |
Correct |
119 ms |
14284 KB |
Output is correct |
24 |
Correct |
192 ms |
25664 KB |
Output is correct |
25 |
Correct |
161 ms |
31228 KB |
Output is correct |
26 |
Correct |
6 ms |
2956 KB |
Output is correct |
27 |
Correct |
99 ms |
9708 KB |
Output is correct |
28 |
Correct |
213 ms |
22152 KB |
Output is correct |
29 |
Correct |
86 ms |
11724 KB |
Output is correct |
30 |
Correct |
63 ms |
8308 KB |
Output is correct |
31 |
Correct |
16 ms |
4664 KB |
Output is correct |
32 |
Correct |
108 ms |
16128 KB |
Output is correct |
33 |
Correct |
60 ms |
16888 KB |
Output is correct |
34 |
Correct |
95 ms |
10392 KB |
Output is correct |
35 |
Correct |
6 ms |
3284 KB |
Output is correct |
36 |
Correct |
162 ms |
27132 KB |
Output is correct |
37 |
Correct |
12 ms |
4564 KB |
Output is correct |
38 |
Correct |
14 ms |
5036 KB |
Output is correct |
39 |
Correct |
34 ms |
5920 KB |
Output is correct |
40 |
Correct |
16 ms |
5204 KB |
Output is correct |
41 |
Correct |
86 ms |
9228 KB |
Output is correct |
42 |
Correct |
28 ms |
6012 KB |
Output is correct |
43 |
Correct |
71 ms |
7920 KB |
Output is correct |
44 |
Correct |
79 ms |
11820 KB |
Output is correct |
45 |
Correct |
174 ms |
26556 KB |
Output is correct |
46 |
Correct |
14 ms |
4840 KB |
Output is correct |
47 |
Correct |
204 ms |
22128 KB |
Output is correct |
48 |
Correct |
220 ms |
23112 KB |
Output is correct |
49 |
Correct |
152 ms |
19520 KB |
Output is correct |
50 |
Correct |
234 ms |
27336 KB |
Output is correct |
51 |
Correct |
23 ms |
5744 KB |
Output is correct |
52 |
Correct |
137 ms |
18332 KB |
Output is correct |
53 |
Correct |
87 ms |
10100 KB |
Output is correct |
54 |
Correct |
99 ms |
11628 KB |
Output is correct |
55 |
Correct |
84 ms |
10416 KB |
Output is correct |
56 |
Correct |
238 ms |
25744 KB |
Output is correct |
57 |
Correct |
34 ms |
7852 KB |
Output is correct |
58 |
Correct |
4 ms |
3156 KB |
Output is correct |
59 |
Correct |
82 ms |
9588 KB |
Output is correct |
60 |
Correct |
32 ms |
7732 KB |
Output is correct |