#include <bits/stdc++.h>
using namespace std;
#define int long long
#define inf 0x3F3F3F3F3F3F3F3F
const int MXN = 3e4 + 5;
int b[MXN], p[MXN], dist[MXN];
vector<int> adj[MXN];
signed main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
int n, m;
cin >> n >> m;
for (int i = 0; i < n; i++) dist[i] = inf;
for (int i = 0; i < m; i++)
{
cin >> b[i] >> p[i];
adj[b[i]].push_back(p[i]);
}
priority_queue<array<int, 2>, vector<array<int, 2>>, greater<array<int, 2>>> pq;
dist[b[0]] = 0;
pq.push({0, b[0]});
while (!pq.empty())
{
array<int, 2> f = pq.top();
pq.pop();
if (f[0] > dist[f[1]]) continue;
for (int v : adj[f[1]])
{
for (int i = f[1] - v; i >= 0; i -= v)
{
if (dist[i] > dist[f[1]] + ((f[1] - i) / v))
{
dist[i] = dist[f[1]] + ((f[1] - i) / v);
pq.push({dist[i], i});
}
}
for (int i = f[1] + v; i < n; i += v)
{
if (dist[i] > dist[f[1]] + ((i - f[1]) / v))
{
dist[i] = dist[f[1]] + ((i - f[1]) / v);
pq.push({dist[i], i});
}
}
}
}
cout << (dist[b[1]] >= inf ? -1 : dist[b[1]]) << '\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1112 KB |
Output is correct |
2 |
Correct |
1 ms |
1116 KB |
Output is correct |
3 |
Correct |
1 ms |
1116 KB |
Output is correct |
4 |
Correct |
1 ms |
1368 KB |
Output is correct |
5 |
Correct |
1 ms |
1116 KB |
Output is correct |
6 |
Correct |
1 ms |
1116 KB |
Output is correct |
7 |
Correct |
1 ms |
1116 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1112 KB |
Output is correct |
2 |
Correct |
1 ms |
1116 KB |
Output is correct |
3 |
Correct |
0 ms |
1116 KB |
Output is correct |
4 |
Correct |
0 ms |
1116 KB |
Output is correct |
5 |
Correct |
1 ms |
1116 KB |
Output is correct |
6 |
Correct |
1 ms |
1116 KB |
Output is correct |
7 |
Correct |
1 ms |
1116 KB |
Output is correct |
8 |
Correct |
1 ms |
1116 KB |
Output is correct |
9 |
Correct |
1 ms |
1112 KB |
Output is correct |
10 |
Correct |
1 ms |
1116 KB |
Output is correct |
11 |
Correct |
1 ms |
1116 KB |
Output is correct |
12 |
Correct |
2 ms |
1116 KB |
Output is correct |
13 |
Correct |
2 ms |
1116 KB |
Output is correct |
14 |
Correct |
1 ms |
1112 KB |
Output is correct |
15 |
Correct |
1 ms |
1112 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1116 KB |
Output is correct |
2 |
Correct |
1 ms |
1116 KB |
Output is correct |
3 |
Correct |
1 ms |
1116 KB |
Output is correct |
4 |
Correct |
1 ms |
1116 KB |
Output is correct |
5 |
Correct |
1 ms |
1116 KB |
Output is correct |
6 |
Correct |
1 ms |
1116 KB |
Output is correct |
7 |
Correct |
1 ms |
1116 KB |
Output is correct |
8 |
Correct |
1 ms |
1116 KB |
Output is correct |
9 |
Correct |
1 ms |
1116 KB |
Output is correct |
10 |
Correct |
1 ms |
1116 KB |
Output is correct |
11 |
Correct |
1 ms |
1116 KB |
Output is correct |
12 |
Correct |
2 ms |
1116 KB |
Output is correct |
13 |
Correct |
2 ms |
1116 KB |
Output is correct |
14 |
Correct |
1 ms |
1116 KB |
Output is correct |
15 |
Correct |
1 ms |
1116 KB |
Output is correct |
16 |
Correct |
1 ms |
1116 KB |
Output is correct |
17 |
Correct |
1 ms |
1112 KB |
Output is correct |
18 |
Correct |
1 ms |
1116 KB |
Output is correct |
19 |
Correct |
1 ms |
1116 KB |
Output is correct |
20 |
Correct |
23 ms |
1116 KB |
Output is correct |
21 |
Correct |
1 ms |
1116 KB |
Output is correct |
22 |
Correct |
1 ms |
1116 KB |
Output is correct |
23 |
Correct |
1 ms |
1116 KB |
Output is correct |
24 |
Correct |
2 ms |
1116 KB |
Output is correct |
25 |
Correct |
2 ms |
1372 KB |
Output is correct |
26 |
Correct |
21 ms |
1116 KB |
Output is correct |
27 |
Correct |
20 ms |
1116 KB |
Output is correct |
28 |
Correct |
1 ms |
1116 KB |
Output is correct |
29 |
Correct |
2 ms |
1500 KB |
Output is correct |
30 |
Correct |
2 ms |
1372 KB |
Output is correct |
31 |
Correct |
2 ms |
1372 KB |
Output is correct |
32 |
Correct |
1 ms |
1372 KB |
Output is correct |
33 |
Correct |
3 ms |
1628 KB |
Output is correct |
34 |
Correct |
3 ms |
1628 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1116 KB |
Output is correct |
2 |
Correct |
1 ms |
1116 KB |
Output is correct |
3 |
Correct |
1 ms |
1116 KB |
Output is correct |
4 |
Correct |
1 ms |
1116 KB |
Output is correct |
5 |
Correct |
1 ms |
1116 KB |
Output is correct |
6 |
Correct |
1 ms |
1116 KB |
Output is correct |
7 |
Correct |
1 ms |
1112 KB |
Output is correct |
8 |
Correct |
1 ms |
1112 KB |
Output is correct |
9 |
Correct |
1 ms |
1116 KB |
Output is correct |
10 |
Correct |
1 ms |
1116 KB |
Output is correct |
11 |
Correct |
1 ms |
1116 KB |
Output is correct |
12 |
Correct |
2 ms |
1112 KB |
Output is correct |
13 |
Correct |
2 ms |
1116 KB |
Output is correct |
14 |
Correct |
1 ms |
1116 KB |
Output is correct |
15 |
Correct |
1 ms |
1116 KB |
Output is correct |
16 |
Correct |
1 ms |
1116 KB |
Output is correct |
17 |
Correct |
1 ms |
1116 KB |
Output is correct |
18 |
Correct |
1 ms |
1116 KB |
Output is correct |
19 |
Correct |
1 ms |
1116 KB |
Output is correct |
20 |
Correct |
23 ms |
1116 KB |
Output is correct |
21 |
Correct |
1 ms |
1116 KB |
Output is correct |
22 |
Correct |
1 ms |
1116 KB |
Output is correct |
23 |
Correct |
1 ms |
1116 KB |
Output is correct |
24 |
Correct |
1 ms |
1116 KB |
Output is correct |
25 |
Correct |
1 ms |
1372 KB |
Output is correct |
26 |
Correct |
21 ms |
1276 KB |
Output is correct |
27 |
Correct |
20 ms |
1116 KB |
Output is correct |
28 |
Correct |
1 ms |
1116 KB |
Output is correct |
29 |
Correct |
3 ms |
1500 KB |
Output is correct |
30 |
Correct |
2 ms |
1372 KB |
Output is correct |
31 |
Correct |
2 ms |
1420 KB |
Output is correct |
32 |
Correct |
2 ms |
1372 KB |
Output is correct |
33 |
Correct |
3 ms |
1648 KB |
Output is correct |
34 |
Correct |
3 ms |
1628 KB |
Output is correct |
35 |
Correct |
5 ms |
2136 KB |
Output is correct |
36 |
Correct |
2 ms |
1372 KB |
Output is correct |
37 |
Correct |
6 ms |
2140 KB |
Output is correct |
38 |
Correct |
7 ms |
2396 KB |
Output is correct |
39 |
Correct |
7 ms |
2396 KB |
Output is correct |
40 |
Correct |
7 ms |
2420 KB |
Output is correct |
41 |
Correct |
7 ms |
2392 KB |
Output is correct |
42 |
Correct |
337 ms |
2536 KB |
Output is correct |
43 |
Correct |
329 ms |
2012 KB |
Output is correct |
44 |
Correct |
342 ms |
2048 KB |
Output is correct |
45 |
Correct |
7 ms |
2652 KB |
Output is correct |
46 |
Correct |
7 ms |
2652 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1116 KB |
Output is correct |
2 |
Correct |
1 ms |
1116 KB |
Output is correct |
3 |
Correct |
1 ms |
1116 KB |
Output is correct |
4 |
Correct |
1 ms |
1116 KB |
Output is correct |
5 |
Correct |
0 ms |
1116 KB |
Output is correct |
6 |
Correct |
1 ms |
1116 KB |
Output is correct |
7 |
Correct |
1 ms |
1116 KB |
Output is correct |
8 |
Correct |
1 ms |
1112 KB |
Output is correct |
9 |
Correct |
1 ms |
1116 KB |
Output is correct |
10 |
Correct |
1 ms |
1116 KB |
Output is correct |
11 |
Correct |
1 ms |
1156 KB |
Output is correct |
12 |
Correct |
2 ms |
1116 KB |
Output is correct |
13 |
Correct |
2 ms |
1116 KB |
Output is correct |
14 |
Correct |
1 ms |
1116 KB |
Output is correct |
15 |
Correct |
1 ms |
1116 KB |
Output is correct |
16 |
Correct |
1 ms |
1116 KB |
Output is correct |
17 |
Correct |
1 ms |
1116 KB |
Output is correct |
18 |
Correct |
1 ms |
1116 KB |
Output is correct |
19 |
Correct |
1 ms |
1116 KB |
Output is correct |
20 |
Correct |
23 ms |
1352 KB |
Output is correct |
21 |
Correct |
1 ms |
1112 KB |
Output is correct |
22 |
Correct |
1 ms |
1116 KB |
Output is correct |
23 |
Correct |
1 ms |
1116 KB |
Output is correct |
24 |
Correct |
1 ms |
1116 KB |
Output is correct |
25 |
Correct |
1 ms |
1624 KB |
Output is correct |
26 |
Correct |
21 ms |
1116 KB |
Output is correct |
27 |
Correct |
20 ms |
1272 KB |
Output is correct |
28 |
Correct |
1 ms |
1116 KB |
Output is correct |
29 |
Correct |
2 ms |
1424 KB |
Output is correct |
30 |
Correct |
1 ms |
1372 KB |
Output is correct |
31 |
Correct |
2 ms |
1372 KB |
Output is correct |
32 |
Correct |
2 ms |
1372 KB |
Output is correct |
33 |
Correct |
3 ms |
1628 KB |
Output is correct |
34 |
Correct |
3 ms |
1628 KB |
Output is correct |
35 |
Correct |
5 ms |
2140 KB |
Output is correct |
36 |
Correct |
2 ms |
1372 KB |
Output is correct |
37 |
Correct |
6 ms |
2140 KB |
Output is correct |
38 |
Correct |
7 ms |
2396 KB |
Output is correct |
39 |
Correct |
7 ms |
2392 KB |
Output is correct |
40 |
Correct |
7 ms |
2396 KB |
Output is correct |
41 |
Correct |
7 ms |
2476 KB |
Output is correct |
42 |
Correct |
337 ms |
2012 KB |
Output is correct |
43 |
Correct |
329 ms |
2008 KB |
Output is correct |
44 |
Correct |
340 ms |
2052 KB |
Output is correct |
45 |
Correct |
7 ms |
2648 KB |
Output is correct |
46 |
Correct |
7 ms |
2652 KB |
Output is correct |
47 |
Correct |
17 ms |
3292 KB |
Output is correct |
48 |
Correct |
5 ms |
2196 KB |
Output is correct |
49 |
Correct |
5 ms |
2396 KB |
Output is correct |
50 |
Correct |
3 ms |
2392 KB |
Output is correct |
51 |
Correct |
23 ms |
5016 KB |
Output is correct |
52 |
Correct |
23 ms |
3796 KB |
Output is correct |
53 |
Correct |
12 ms |
3800 KB |
Output is correct |
54 |
Correct |
3 ms |
1676 KB |
Output is correct |
55 |
Correct |
3 ms |
1760 KB |
Output is correct |
56 |
Execution timed out |
1092 ms |
3488 KB |
Time limit exceeded |
57 |
Halted |
0 ms |
0 KB |
- |