#include <bits/stdc++.h>
using namespace std;
#ifdef MIKU
string dbmc = "\033[1;38;2;57;197;187m", dbrs = "\033[0m";
#define debug(x...) cout << dbmc << "[" << #x << "]: ", dout(x)
void dout() { cout << dbrs << endl; }
template <typename T, typename ...U>
void dout(T t, U ...u) { cout << t << (sizeof...(u) ? ", " : ""); dout(u...); }
#else
#define debug(...) 39
#endif
#define fs first
#define sc second
#define mp make_pair
#define FOR(i, j, k) for (int i = j, Z = k; i < Z; i++)
using ll = long long;
typedef pair<int, int> pii;
const int MXN = 30005, INF = 1e9;
int n, m, pos[MXN], p[MXN];
int dis[MXN];
vector<int> v[MXN];
priority_queue<pii, vector<pii>, greater<pii>> pq;
bool PUSH(int to, int len, int t) {
if (len < dis[to]) {
dis[to] = len;
pq.push(mp(len, to));
}
auto it = lower_bound(v[to].begin(), v[to].end(), t);
if (it != v[to].end() && *it == t) return false;
return true;
}
void DIJKSTRA(int sr) {
fill(dis, dis + n, INF);
dis[sr] = 0;
pq.push(mp(0, sr));
while (pq.size()) {
auto [len, id] = pq.top();
pq.pop();
if (dis[id] < len) continue;
// dis[id] = len;
if (id == pos[1]) break;
for (auto &t : v[id]) {
for (int i = 1; id + t * i < n; i++) {
int to = id + t * i;
if (!PUSH(to, len + i, t)) break;
}
for (int i = 1; id - t * i >= 0; i++) {
int to = id - t * i;
if (!PUSH(to, len + i, t)) break;
}
}
}
}
void miku() {
cin >> n >> m;
FOR(i, 0, m) {
cin >> pos[i] >> p[i];
v[pos[i]].push_back(p[i]);
}
FOR(i, 0, n) {
sort(v[i].begin(), v[i].end());
v[i].erase(unique(v[i].begin(), v[i].end()), v[i].end());
}
DIJKSTRA(pos[0]);
cout << (dis[pos[1]] == INF ? -1 : dis[pos[1]]) << '\n';
}
int32_t main() {
cin.tie(0) -> sync_with_stdio(false);
cin.exceptions(cin.failbit);
miku();
return 0;
}
# |
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 |
1112 KB |
Output is correct |
7 |
Correct |
1 ms |
1116 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 |
1112 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 |
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 |
1 ms |
1116 KB |
Output is correct |
13 |
Correct |
1 ms |
1116 KB |
Output is correct |
14 |
Correct |
1 ms |
1116 KB |
Output is correct |
15 |
Correct |
1 ms |
1224 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 |
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 |
1268 KB |
Output is correct |
10 |
Correct |
1 ms |
1156 KB |
Output is correct |
11 |
Correct |
1 ms |
1116 KB |
Output is correct |
12 |
Correct |
1 ms |
1116 KB |
Output is correct |
13 |
Correct |
1 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 |
1 ms |
1116 KB |
Output is correct |
21 |
Correct |
1 ms |
1112 KB |
Output is correct |
22 |
Correct |
1 ms |
1116 KB |
Output is correct |
23 |
Correct |
2 ms |
1116 KB |
Output is correct |
24 |
Correct |
1 ms |
1116 KB |
Output is correct |
25 |
Correct |
1 ms |
1112 KB |
Output is correct |
26 |
Correct |
1 ms |
1116 KB |
Output is correct |
27 |
Correct |
1 ms |
1116 KB |
Output is correct |
28 |
Correct |
1 ms |
1116 KB |
Output is correct |
29 |
Correct |
2 ms |
1432 KB |
Output is correct |
30 |
Correct |
1 ms |
1116 KB |
Output is correct |
31 |
Correct |
1 ms |
1112 KB |
Output is correct |
32 |
Correct |
1 ms |
1116 KB |
Output is correct |
33 |
Correct |
3 ms |
1504 KB |
Output is correct |
34 |
Correct |
3 ms |
1500 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1112 KB |
Output is correct |
2 |
Correct |
1 ms |
1112 KB |
Output is correct |
3 |
Correct |
1 ms |
1116 KB |
Output is correct |
4 |
Correct |
1 ms |
1112 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 |
1368 KB |
Output is correct |
11 |
Correct |
1 ms |
1112 KB |
Output is correct |
12 |
Correct |
1 ms |
1116 KB |
Output is correct |
13 |
Correct |
1 ms |
1116 KB |
Output is correct |
14 |
Correct |
1 ms |
1116 KB |
Output is correct |
15 |
Correct |
1 ms |
1112 KB |
Output is correct |
16 |
Correct |
1 ms |
1128 KB |
Output is correct |
17 |
Correct |
1 ms |
1124 KB |
Output is correct |
18 |
Correct |
1 ms |
1300 KB |
Output is correct |
19 |
Correct |
1 ms |
1116 KB |
Output is correct |
20 |
Correct |
1 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 |
1112 KB |
Output is correct |
25 |
Correct |
1 ms |
1112 KB |
Output is correct |
26 |
Correct |
1 ms |
1112 KB |
Output is correct |
27 |
Correct |
1 ms |
1116 KB |
Output is correct |
28 |
Correct |
2 ms |
1116 KB |
Output is correct |
29 |
Correct |
3 ms |
1372 KB |
Output is correct |
30 |
Correct |
1 ms |
1116 KB |
Output is correct |
31 |
Correct |
2 ms |
1116 KB |
Output is correct |
32 |
Correct |
1 ms |
1116 KB |
Output is correct |
33 |
Correct |
4 ms |
1504 KB |
Output is correct |
34 |
Correct |
3 ms |
1504 KB |
Output is correct |
35 |
Correct |
7 ms |
1632 KB |
Output is correct |
36 |
Correct |
2 ms |
1272 KB |
Output is correct |
37 |
Correct |
6 ms |
1628 KB |
Output is correct |
38 |
Correct |
6 ms |
1576 KB |
Output is correct |
39 |
Correct |
5 ms |
1628 KB |
Output is correct |
40 |
Correct |
5 ms |
1628 KB |
Output is correct |
41 |
Correct |
5 ms |
1628 KB |
Output is correct |
42 |
Correct |
4 ms |
1628 KB |
Output is correct |
43 |
Correct |
5 ms |
1884 KB |
Output is correct |
44 |
Correct |
4 ms |
1628 KB |
Output is correct |
45 |
Correct |
9 ms |
1900 KB |
Output is correct |
46 |
Correct |
8 ms |
1916 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1112 KB |
Output is correct |
2 |
Correct |
1 ms |
1128 KB |
Output is correct |
3 |
Correct |
1 ms |
1128 KB |
Output is correct |
4 |
Correct |
1 ms |
1112 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 |
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 |
1112 KB |
Output is correct |
12 |
Correct |
1 ms |
1112 KB |
Output is correct |
13 |
Correct |
1 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 |
1 ms |
1116 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 |
1116 KB |
Output is correct |
26 |
Correct |
1 ms |
1116 KB |
Output is correct |
27 |
Correct |
1 ms |
1116 KB |
Output is correct |
28 |
Correct |
1 ms |
1116 KB |
Output is correct |
29 |
Correct |
2 ms |
1368 KB |
Output is correct |
30 |
Correct |
1 ms |
1116 KB |
Output is correct |
31 |
Correct |
2 ms |
1116 KB |
Output is correct |
32 |
Correct |
1 ms |
1116 KB |
Output is correct |
33 |
Correct |
4 ms |
1504 KB |
Output is correct |
34 |
Correct |
3 ms |
1504 KB |
Output is correct |
35 |
Correct |
8 ms |
1628 KB |
Output is correct |
36 |
Correct |
2 ms |
1156 KB |
Output is correct |
37 |
Correct |
6 ms |
1372 KB |
Output is correct |
38 |
Correct |
6 ms |
1628 KB |
Output is correct |
39 |
Correct |
5 ms |
1540 KB |
Output is correct |
40 |
Correct |
5 ms |
1628 KB |
Output is correct |
41 |
Correct |
6 ms |
1656 KB |
Output is correct |
42 |
Correct |
4 ms |
1628 KB |
Output is correct |
43 |
Correct |
4 ms |
1628 KB |
Output is correct |
44 |
Correct |
4 ms |
1628 KB |
Output is correct |
45 |
Correct |
9 ms |
1884 KB |
Output is correct |
46 |
Correct |
8 ms |
1884 KB |
Output is correct |
47 |
Correct |
12 ms |
2264 KB |
Output is correct |
48 |
Correct |
5 ms |
1880 KB |
Output is correct |
49 |
Correct |
5 ms |
1884 KB |
Output is correct |
50 |
Correct |
3 ms |
1628 KB |
Output is correct |
51 |
Correct |
15 ms |
2604 KB |
Output is correct |
52 |
Correct |
15 ms |
2520 KB |
Output is correct |
53 |
Correct |
7 ms |
2140 KB |
Output is correct |
54 |
Correct |
2 ms |
1372 KB |
Output is correct |
55 |
Correct |
2 ms |
1372 KB |
Output is correct |
56 |
Correct |
6 ms |
2392 KB |
Output is correct |
57 |
Correct |
2 ms |
1624 KB |
Output is correct |
58 |
Correct |
6 ms |
1884 KB |
Output is correct |
59 |
Correct |
6 ms |
1884 KB |
Output is correct |
60 |
Correct |
6 ms |
1884 KB |
Output is correct |
61 |
Correct |
6 ms |
1884 KB |
Output is correct |
62 |
Correct |
10 ms |
2396 KB |
Output is correct |
63 |
Correct |
35 ms |
3852 KB |
Output is correct |
64 |
Correct |
39 ms |
3820 KB |
Output is correct |
65 |
Correct |
47 ms |
3796 KB |
Output is correct |
66 |
Correct |
92 ms |
6604 KB |
Output is correct |
67 |
Correct |
65 ms |
6600 KB |
Output is correct |