#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
//#define int long long
#define mp make_pair
#define mt make_tuple
#define pb push_back
#define ppb pop_back
#define eb emplace_back
#define g0(a) get<0>(a)
#define g1(a) get<1>(a)
#define g2(a) get<2>(a)
#define g3(a) get<3>(a)
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
typedef double db;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> ii;
typedef tuple<int, int, int> iii;
typedef tuple<int, int, int, int> iiii;
typedef tree<ii, null_type, less<ii>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;
const int C = 200;
bool has[30005][205];
int N, M, st, ed, dist[30005];
vector<int> dog[30005];
priority_queue<ii, vector<ii>, greater<ii> > pq;
main() {
ios::sync_with_stdio(0);
cin.tie(0);
cin >> N >> M;
for (int i = 0, B, P; i < M; i++) {
cin >> B >> P;
dog[B].eb(P);
if (P <= C) has[B][P] = 1;
if (i == 0) st = B;
else if (i == 1) ed = B;
}
for (int i = 0; i < N; i++) dist[i] = 1e9;
dist[st] = 0;
pq.emplace(0, st);
while (!pq.empty()) {
auto [d, v] = pq.top();
pq.pop();
if (dist[v] != d) continue;
for (auto u : dog[v]) {
for (int i = v - u; i >= 0; i -= u) {
if (dist[i] > d + (v - i) / u) {
dist[i] = d + (v - i) / u;
pq.emplace(dist[i], i);
}
if (u <= C && has[i][u]) break;
}
for (int i = v + u; i < N; i += u) {
if (dist[i] > d + (i - v) / u) {
dist[i] = d + (i - v) / u;
pq.emplace(dist[i], i);
}
if (u <= C && has[i][u]) break;
}
}
}
cout << (dist[ed] == 1e9 ? -1 : dist[ed]) << '\n';
}
Compilation message
skyscraper.cpp:34:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
34 | main() {
| ^~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
972 KB |
Output is correct |
2 |
Correct |
1 ms |
972 KB |
Output is correct |
3 |
Correct |
1 ms |
972 KB |
Output is correct |
4 |
Correct |
1 ms |
972 KB |
Output is correct |
5 |
Correct |
1 ms |
972 KB |
Output is correct |
6 |
Correct |
1 ms |
972 KB |
Output is correct |
7 |
Correct |
1 ms |
972 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
972 KB |
Output is correct |
2 |
Correct |
1 ms |
972 KB |
Output is correct |
3 |
Correct |
1 ms |
972 KB |
Output is correct |
4 |
Correct |
1 ms |
1032 KB |
Output is correct |
5 |
Correct |
1 ms |
972 KB |
Output is correct |
6 |
Correct |
1 ms |
972 KB |
Output is correct |
7 |
Correct |
1 ms |
972 KB |
Output is correct |
8 |
Correct |
1 ms |
972 KB |
Output is correct |
9 |
Correct |
1 ms |
972 KB |
Output is correct |
10 |
Correct |
1 ms |
972 KB |
Output is correct |
11 |
Correct |
1 ms |
972 KB |
Output is correct |
12 |
Correct |
2 ms |
972 KB |
Output is correct |
13 |
Correct |
1 ms |
972 KB |
Output is correct |
14 |
Correct |
1 ms |
972 KB |
Output is correct |
15 |
Correct |
1 ms |
972 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
972 KB |
Output is correct |
2 |
Correct |
1 ms |
972 KB |
Output is correct |
3 |
Correct |
1 ms |
972 KB |
Output is correct |
4 |
Correct |
1 ms |
972 KB |
Output is correct |
5 |
Correct |
1 ms |
972 KB |
Output is correct |
6 |
Correct |
1 ms |
972 KB |
Output is correct |
7 |
Correct |
1 ms |
972 KB |
Output is correct |
8 |
Correct |
1 ms |
972 KB |
Output is correct |
9 |
Correct |
1 ms |
972 KB |
Output is correct |
10 |
Correct |
1 ms |
972 KB |
Output is correct |
11 |
Correct |
1 ms |
972 KB |
Output is correct |
12 |
Correct |
2 ms |
972 KB |
Output is correct |
13 |
Correct |
1 ms |
972 KB |
Output is correct |
14 |
Correct |
1 ms |
972 KB |
Output is correct |
15 |
Correct |
1 ms |
972 KB |
Output is correct |
16 |
Correct |
1 ms |
972 KB |
Output is correct |
17 |
Correct |
1 ms |
1228 KB |
Output is correct |
18 |
Correct |
1 ms |
1228 KB |
Output is correct |
19 |
Correct |
1 ms |
1100 KB |
Output is correct |
20 |
Correct |
1 ms |
1484 KB |
Output is correct |
21 |
Correct |
1 ms |
1100 KB |
Output is correct |
22 |
Correct |
1 ms |
1228 KB |
Output is correct |
23 |
Correct |
2 ms |
1228 KB |
Output is correct |
24 |
Correct |
2 ms |
1356 KB |
Output is correct |
25 |
Correct |
2 ms |
1100 KB |
Output is correct |
26 |
Correct |
23 ms |
1244 KB |
Output is correct |
27 |
Correct |
22 ms |
1188 KB |
Output is correct |
28 |
Correct |
2 ms |
1100 KB |
Output is correct |
29 |
Correct |
3 ms |
1228 KB |
Output is correct |
30 |
Correct |
1 ms |
1100 KB |
Output is correct |
31 |
Correct |
1 ms |
1100 KB |
Output is correct |
32 |
Correct |
1 ms |
1100 KB |
Output is correct |
33 |
Correct |
3 ms |
1228 KB |
Output is correct |
34 |
Correct |
3 ms |
1228 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
972 KB |
Output is correct |
2 |
Correct |
1 ms |
972 KB |
Output is correct |
3 |
Correct |
1 ms |
972 KB |
Output is correct |
4 |
Correct |
1 ms |
972 KB |
Output is correct |
5 |
Correct |
1 ms |
972 KB |
Output is correct |
6 |
Correct |
1 ms |
972 KB |
Output is correct |
7 |
Correct |
1 ms |
972 KB |
Output is correct |
8 |
Correct |
1 ms |
972 KB |
Output is correct |
9 |
Correct |
1 ms |
972 KB |
Output is correct |
10 |
Correct |
1 ms |
972 KB |
Output is correct |
11 |
Correct |
1 ms |
1020 KB |
Output is correct |
12 |
Correct |
2 ms |
972 KB |
Output is correct |
13 |
Correct |
1 ms |
972 KB |
Output is correct |
14 |
Correct |
1 ms |
972 KB |
Output is correct |
15 |
Correct |
1 ms |
972 KB |
Output is correct |
16 |
Correct |
1 ms |
972 KB |
Output is correct |
17 |
Correct |
1 ms |
1228 KB |
Output is correct |
18 |
Correct |
1 ms |
1228 KB |
Output is correct |
19 |
Correct |
1 ms |
1100 KB |
Output is correct |
20 |
Correct |
1 ms |
1484 KB |
Output is correct |
21 |
Correct |
1 ms |
1100 KB |
Output is correct |
22 |
Correct |
1 ms |
1228 KB |
Output is correct |
23 |
Correct |
1 ms |
1228 KB |
Output is correct |
24 |
Correct |
2 ms |
1356 KB |
Output is correct |
25 |
Correct |
1 ms |
1100 KB |
Output is correct |
26 |
Correct |
22 ms |
1228 KB |
Output is correct |
27 |
Correct |
21 ms |
1184 KB |
Output is correct |
28 |
Correct |
1 ms |
1100 KB |
Output is correct |
29 |
Correct |
2 ms |
1228 KB |
Output is correct |
30 |
Correct |
2 ms |
1100 KB |
Output is correct |
31 |
Correct |
2 ms |
1100 KB |
Output is correct |
32 |
Correct |
1 ms |
1100 KB |
Output is correct |
33 |
Correct |
3 ms |
1228 KB |
Output is correct |
34 |
Correct |
3 ms |
1228 KB |
Output is correct |
35 |
Correct |
6 ms |
1520 KB |
Output is correct |
36 |
Correct |
2 ms |
1228 KB |
Output is correct |
37 |
Correct |
5 ms |
1612 KB |
Output is correct |
38 |
Correct |
7 ms |
1740 KB |
Output is correct |
39 |
Correct |
7 ms |
1740 KB |
Output is correct |
40 |
Correct |
7 ms |
1740 KB |
Output is correct |
41 |
Correct |
7 ms |
1740 KB |
Output is correct |
42 |
Correct |
359 ms |
1448 KB |
Output is correct |
43 |
Correct |
358 ms |
1400 KB |
Output is correct |
44 |
Correct |
5 ms |
1612 KB |
Output is correct |
45 |
Correct |
8 ms |
1484 KB |
Output is correct |
46 |
Correct |
8 ms |
1484 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
972 KB |
Output is correct |
2 |
Correct |
1 ms |
972 KB |
Output is correct |
3 |
Correct |
1 ms |
972 KB |
Output is correct |
4 |
Correct |
1 ms |
972 KB |
Output is correct |
5 |
Correct |
1 ms |
976 KB |
Output is correct |
6 |
Correct |
1 ms |
972 KB |
Output is correct |
7 |
Correct |
1 ms |
972 KB |
Output is correct |
8 |
Correct |
1 ms |
976 KB |
Output is correct |
9 |
Correct |
1 ms |
972 KB |
Output is correct |
10 |
Correct |
1 ms |
972 KB |
Output is correct |
11 |
Correct |
1 ms |
976 KB |
Output is correct |
12 |
Correct |
2 ms |
976 KB |
Output is correct |
13 |
Correct |
1 ms |
976 KB |
Output is correct |
14 |
Correct |
1 ms |
972 KB |
Output is correct |
15 |
Correct |
1 ms |
972 KB |
Output is correct |
16 |
Correct |
1 ms |
972 KB |
Output is correct |
17 |
Correct |
1 ms |
1232 KB |
Output is correct |
18 |
Correct |
1 ms |
1320 KB |
Output is correct |
19 |
Correct |
1 ms |
1104 KB |
Output is correct |
20 |
Correct |
1 ms |
1488 KB |
Output is correct |
21 |
Correct |
1 ms |
1104 KB |
Output is correct |
22 |
Correct |
1 ms |
1232 KB |
Output is correct |
23 |
Correct |
1 ms |
1232 KB |
Output is correct |
24 |
Correct |
1 ms |
1360 KB |
Output is correct |
25 |
Correct |
2 ms |
1108 KB |
Output is correct |
26 |
Correct |
23 ms |
1232 KB |
Output is correct |
27 |
Correct |
21 ms |
1104 KB |
Output is correct |
28 |
Correct |
1 ms |
1104 KB |
Output is correct |
29 |
Correct |
2 ms |
1232 KB |
Output is correct |
30 |
Correct |
1 ms |
1104 KB |
Output is correct |
31 |
Correct |
1 ms |
1104 KB |
Output is correct |
32 |
Correct |
1 ms |
1104 KB |
Output is correct |
33 |
Correct |
3 ms |
1232 KB |
Output is correct |
34 |
Correct |
3 ms |
1232 KB |
Output is correct |
35 |
Correct |
5 ms |
1616 KB |
Output is correct |
36 |
Correct |
2 ms |
1232 KB |
Output is correct |
37 |
Correct |
6 ms |
1616 KB |
Output is correct |
38 |
Correct |
7 ms |
1752 KB |
Output is correct |
39 |
Correct |
8 ms |
1752 KB |
Output is correct |
40 |
Correct |
7 ms |
1740 KB |
Output is correct |
41 |
Correct |
7 ms |
1776 KB |
Output is correct |
42 |
Correct |
363 ms |
1452 KB |
Output is correct |
43 |
Correct |
353 ms |
1396 KB |
Output is correct |
44 |
Correct |
5 ms |
1612 KB |
Output is correct |
45 |
Correct |
8 ms |
1484 KB |
Output is correct |
46 |
Correct |
8 ms |
1484 KB |
Output is correct |
47 |
Correct |
17 ms |
4600 KB |
Output is correct |
48 |
Correct |
6 ms |
2324 KB |
Output is correct |
49 |
Correct |
6 ms |
2252 KB |
Output is correct |
50 |
Correct |
4 ms |
2052 KB |
Output is correct |
51 |
Correct |
23 ms |
3336 KB |
Output is correct |
52 |
Correct |
25 ms |
3528 KB |
Output is correct |
53 |
Correct |
14 ms |
2760 KB |
Output is correct |
54 |
Correct |
3 ms |
1292 KB |
Output is correct |
55 |
Correct |
3 ms |
1272 KB |
Output is correct |
56 |
Correct |
12 ms |
8268 KB |
Output is correct |
57 |
Correct |
25 ms |
6600 KB |
Output is correct |
58 |
Execution timed out |
1039 ms |
1612 KB |
Time limit exceeded |
59 |
Halted |
0 ms |
0 KB |
- |