#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const ll inf = 1e18;
void testCase() {
int n, m;
cin >> n >> m;
vector<int> t(m), l(m), r(m), c(m);
for (int i = 0; i < m; i++) cin >> t[i] >> l[i] >> r[i] >> c[i];
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) {
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;
for (int i = 0; i < m; i++) {
if (t[i] < t[u]) {
if (r[u] >= l[i] + t[u] - t[i] - 1 && dist[i] > dist[u] + c[i]) {
dist[i] = dist[u] + c[i];
pq.push({-dist[i], i});
}
} else {
if (l[i] <= r[u] - t[i] + t[u] + 1 && dist[i] > dist[u] + c[i]) {
dist[i] = dist[u] + c[i];
pq.push({-dist[i], i});
}
}
}
}
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;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
3021 ms |
5968 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
464 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
344 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 |
452 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
10 |
Correct |
1 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 |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
456 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
344 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
464 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
344 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 |
452 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
10 |
Correct |
1 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 |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
456 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
344 KB |
Output is correct |
20 |
Correct |
92 ms |
860 KB |
Output is correct |
21 |
Correct |
92 ms |
728 KB |
Output is correct |
22 |
Correct |
71 ms |
736 KB |
Output is correct |
23 |
Correct |
44 ms |
604 KB |
Output is correct |
24 |
Correct |
81 ms |
896 KB |
Output is correct |
25 |
Correct |
51 ms |
600 KB |
Output is correct |
26 |
Correct |
53 ms |
604 KB |
Output is correct |
27 |
Correct |
45 ms |
604 KB |
Output is correct |
28 |
Correct |
81 ms |
872 KB |
Output is correct |
29 |
Correct |
43 ms |
756 KB |
Output is correct |
30 |
Correct |
2 ms |
604 KB |
Output is correct |
31 |
Correct |
2 ms |
604 KB |
Output is correct |
32 |
Correct |
177 ms |
860 KB |
Output is correct |
33 |
Correct |
137 ms |
964 KB |
Output is correct |
34 |
Correct |
147 ms |
748 KB |
Output is correct |
35 |
Correct |
169 ms |
928 KB |
Output is correct |
36 |
Correct |
138 ms |
856 KB |
Output is correct |
37 |
Correct |
150 ms |
692 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
3021 ms |
5968 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |