#include <bits/stdc++.h>
typedef long long ll;
#define FOR(i, x, y) for(ll i=x; i<y; i++)
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define ordered_set tree<ll, null_type,greater_equal<int>, rb_tree_tag,tree_order_statistics_node_update>
int n,m;
int a,b,baka,imposter,sus, countz,sussy;
vector<vector<int> > edges[30000];
set <int> stuff[30000];
int dists[30001];
int main(){
FOR(i, 0, 30001){
dists[i] = 2147483647;
}
cin >> n>>m;
FOR(i, 0, m){
cin >> a >> b;
if(i==0) imposter = a;
if (i==1) baka = a;
stuff[a].insert(b);
}
FOR(k, 0, n){
for(auto&i : stuff[k]){
sus = k;
sussy = i;
countz = 0;
while ((sus+sussy)<n){
sus += sussy;
countz++;
edges[k].push_back({sus, countz});
if (stuff[sus].find(i) != stuff[sus].end()) break;
}
sus = k;
countz = 0;
while ((sus-sussy)>=0){
sus -= sussy;
countz++;
edges[k].push_back({sus, countz});
if (stuff[sus].find(i) != stuff[sus].end()) break;
}
}
}
int src=imposter;
priority_queue<vector<int>,vector<vector<int>>, greater<vector<int>>> pq;
dists[src] = 0;
pq.push({0, src});
while (pq.size()) {
vector<int> suz = pq.top();
int cdist, node;
pq.pop();
cdist = suz[0];node=suz[1];
if (cdist != dists[node]) continue;
for (auto& i : edges[node]) {
if (cdist+i[1] < dists[i[0]]) {
pq.push({dists[i[0]] = cdist+i[1], i[0]});
}
}
}
if (dists[baka] != 2147483647){
cout << dists[baka];
}else{
cout << -1;
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2508 KB |
Output is correct |
2 |
Correct |
1 ms |
2508 KB |
Output is correct |
3 |
Correct |
2 ms |
2508 KB |
Output is correct |
4 |
Correct |
2 ms |
2508 KB |
Output is correct |
5 |
Correct |
1 ms |
2508 KB |
Output is correct |
6 |
Correct |
2 ms |
2508 KB |
Output is correct |
7 |
Correct |
1 ms |
2508 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2508 KB |
Output is correct |
2 |
Correct |
1 ms |
2508 KB |
Output is correct |
3 |
Correct |
1 ms |
2508 KB |
Output is correct |
4 |
Correct |
1 ms |
2508 KB |
Output is correct |
5 |
Correct |
1 ms |
2508 KB |
Output is correct |
6 |
Correct |
1 ms |
2508 KB |
Output is correct |
7 |
Correct |
2 ms |
2464 KB |
Output is correct |
8 |
Correct |
1 ms |
2508 KB |
Output is correct |
9 |
Correct |
2 ms |
2508 KB |
Output is correct |
10 |
Correct |
2 ms |
2636 KB |
Output is correct |
11 |
Correct |
3 ms |
2764 KB |
Output is correct |
12 |
Correct |
2 ms |
2508 KB |
Output is correct |
13 |
Correct |
2 ms |
2508 KB |
Output is correct |
14 |
Correct |
4 ms |
2864 KB |
Output is correct |
15 |
Correct |
3 ms |
2892 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2508 KB |
Output is correct |
2 |
Correct |
1 ms |
2508 KB |
Output is correct |
3 |
Correct |
1 ms |
2508 KB |
Output is correct |
4 |
Correct |
1 ms |
2456 KB |
Output is correct |
5 |
Correct |
2 ms |
2508 KB |
Output is correct |
6 |
Correct |
1 ms |
2508 KB |
Output is correct |
7 |
Correct |
1 ms |
2508 KB |
Output is correct |
8 |
Correct |
2 ms |
2508 KB |
Output is correct |
9 |
Correct |
1 ms |
2508 KB |
Output is correct |
10 |
Correct |
2 ms |
2636 KB |
Output is correct |
11 |
Correct |
3 ms |
2764 KB |
Output is correct |
12 |
Correct |
2 ms |
2508 KB |
Output is correct |
13 |
Correct |
2 ms |
2508 KB |
Output is correct |
14 |
Correct |
3 ms |
2892 KB |
Output is correct |
15 |
Correct |
3 ms |
2892 KB |
Output is correct |
16 |
Correct |
3 ms |
2764 KB |
Output is correct |
17 |
Correct |
4 ms |
3532 KB |
Output is correct |
18 |
Correct |
2 ms |
2892 KB |
Output is correct |
19 |
Correct |
2 ms |
2764 KB |
Output is correct |
20 |
Correct |
3 ms |
2764 KB |
Output is correct |
21 |
Correct |
2 ms |
2636 KB |
Output is correct |
22 |
Correct |
2 ms |
2764 KB |
Output is correct |
23 |
Correct |
3 ms |
2892 KB |
Output is correct |
24 |
Correct |
4 ms |
3404 KB |
Output is correct |
25 |
Correct |
4 ms |
3148 KB |
Output is correct |
26 |
Correct |
3 ms |
3148 KB |
Output is correct |
27 |
Correct |
3 ms |
2892 KB |
Output is correct |
28 |
Correct |
5 ms |
3916 KB |
Output is correct |
29 |
Correct |
10 ms |
6792 KB |
Output is correct |
30 |
Correct |
4 ms |
3916 KB |
Output is correct |
31 |
Correct |
6 ms |
4940 KB |
Output is correct |
32 |
Correct |
4 ms |
4300 KB |
Output is correct |
33 |
Correct |
17 ms |
10632 KB |
Output is correct |
34 |
Correct |
17 ms |
10632 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2508 KB |
Output is correct |
2 |
Correct |
2 ms |
2508 KB |
Output is correct |
3 |
Correct |
1 ms |
2416 KB |
Output is correct |
4 |
Correct |
1 ms |
2508 KB |
Output is correct |
5 |
Correct |
1 ms |
2508 KB |
Output is correct |
6 |
Correct |
1 ms |
2508 KB |
Output is correct |
7 |
Correct |
1 ms |
2508 KB |
Output is correct |
8 |
Correct |
1 ms |
2508 KB |
Output is correct |
9 |
Correct |
1 ms |
2508 KB |
Output is correct |
10 |
Correct |
2 ms |
2636 KB |
Output is correct |
11 |
Correct |
3 ms |
2764 KB |
Output is correct |
12 |
Correct |
2 ms |
2508 KB |
Output is correct |
13 |
Correct |
2 ms |
2508 KB |
Output is correct |
14 |
Correct |
3 ms |
2892 KB |
Output is correct |
15 |
Correct |
3 ms |
2892 KB |
Output is correct |
16 |
Correct |
2 ms |
2764 KB |
Output is correct |
17 |
Correct |
4 ms |
3532 KB |
Output is correct |
18 |
Correct |
2 ms |
2892 KB |
Output is correct |
19 |
Correct |
2 ms |
2764 KB |
Output is correct |
20 |
Correct |
3 ms |
2764 KB |
Output is correct |
21 |
Correct |
2 ms |
2636 KB |
Output is correct |
22 |
Correct |
2 ms |
2764 KB |
Output is correct |
23 |
Correct |
5 ms |
2924 KB |
Output is correct |
24 |
Correct |
6 ms |
3404 KB |
Output is correct |
25 |
Correct |
4 ms |
3148 KB |
Output is correct |
26 |
Correct |
3 ms |
3040 KB |
Output is correct |
27 |
Correct |
3 ms |
2892 KB |
Output is correct |
28 |
Correct |
4 ms |
3916 KB |
Output is correct |
29 |
Correct |
13 ms |
6792 KB |
Output is correct |
30 |
Correct |
4 ms |
3916 KB |
Output is correct |
31 |
Correct |
6 ms |
4940 KB |
Output is correct |
32 |
Correct |
7 ms |
4300 KB |
Output is correct |
33 |
Correct |
17 ms |
10632 KB |
Output is correct |
34 |
Correct |
17 ms |
10632 KB |
Output is correct |
35 |
Correct |
32 ms |
9444 KB |
Output is correct |
36 |
Correct |
5 ms |
3660 KB |
Output is correct |
37 |
Correct |
37 ms |
14788 KB |
Output is correct |
38 |
Correct |
42 ms |
13636 KB |
Output is correct |
39 |
Correct |
46 ms |
13824 KB |
Output is correct |
40 |
Correct |
43 ms |
13700 KB |
Output is correct |
41 |
Correct |
40 ms |
13668 KB |
Output is correct |
42 |
Correct |
13 ms |
3048 KB |
Output is correct |
43 |
Correct |
13 ms |
2920 KB |
Output is correct |
44 |
Correct |
12 ms |
2812 KB |
Output is correct |
45 |
Correct |
76 ms |
30748 KB |
Output is correct |
46 |
Correct |
74 ms |
30784 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2508 KB |
Output is correct |
2 |
Correct |
1 ms |
2508 KB |
Output is correct |
3 |
Correct |
1 ms |
2508 KB |
Output is correct |
4 |
Correct |
2 ms |
2508 KB |
Output is correct |
5 |
Correct |
1 ms |
2508 KB |
Output is correct |
6 |
Correct |
1 ms |
2508 KB |
Output is correct |
7 |
Correct |
2 ms |
2508 KB |
Output is correct |
8 |
Correct |
2 ms |
2508 KB |
Output is correct |
9 |
Correct |
2 ms |
2508 KB |
Output is correct |
10 |
Correct |
3 ms |
2508 KB |
Output is correct |
11 |
Correct |
3 ms |
2764 KB |
Output is correct |
12 |
Correct |
2 ms |
2508 KB |
Output is correct |
13 |
Correct |
2 ms |
2508 KB |
Output is correct |
14 |
Correct |
3 ms |
2892 KB |
Output is correct |
15 |
Correct |
3 ms |
2892 KB |
Output is correct |
16 |
Correct |
2 ms |
2764 KB |
Output is correct |
17 |
Correct |
4 ms |
3532 KB |
Output is correct |
18 |
Correct |
2 ms |
2892 KB |
Output is correct |
19 |
Correct |
2 ms |
2764 KB |
Output is correct |
20 |
Correct |
3 ms |
2840 KB |
Output is correct |
21 |
Correct |
2 ms |
2648 KB |
Output is correct |
22 |
Correct |
2 ms |
2764 KB |
Output is correct |
23 |
Correct |
3 ms |
2892 KB |
Output is correct |
24 |
Correct |
4 ms |
3404 KB |
Output is correct |
25 |
Correct |
4 ms |
3148 KB |
Output is correct |
26 |
Correct |
3 ms |
3148 KB |
Output is correct |
27 |
Correct |
3 ms |
2892 KB |
Output is correct |
28 |
Correct |
5 ms |
3916 KB |
Output is correct |
29 |
Correct |
9 ms |
6792 KB |
Output is correct |
30 |
Correct |
4 ms |
3916 KB |
Output is correct |
31 |
Correct |
6 ms |
4940 KB |
Output is correct |
32 |
Correct |
5 ms |
4300 KB |
Output is correct |
33 |
Correct |
19 ms |
10584 KB |
Output is correct |
34 |
Correct |
19 ms |
10644 KB |
Output is correct |
35 |
Correct |
29 ms |
9424 KB |
Output is correct |
36 |
Correct |
7 ms |
3632 KB |
Output is correct |
37 |
Correct |
42 ms |
14864 KB |
Output is correct |
38 |
Correct |
41 ms |
13632 KB |
Output is correct |
39 |
Correct |
42 ms |
13736 KB |
Output is correct |
40 |
Correct |
41 ms |
13672 KB |
Output is correct |
41 |
Correct |
41 ms |
13716 KB |
Output is correct |
42 |
Correct |
13 ms |
3148 KB |
Output is correct |
43 |
Correct |
13 ms |
2920 KB |
Output is correct |
44 |
Correct |
13 ms |
2868 KB |
Output is correct |
45 |
Correct |
62 ms |
30736 KB |
Output is correct |
46 |
Correct |
62 ms |
30776 KB |
Output is correct |
47 |
Correct |
120 ms |
54164 KB |
Output is correct |
48 |
Correct |
37 ms |
16584 KB |
Output is correct |
49 |
Correct |
29 ms |
11176 KB |
Output is correct |
50 |
Correct |
23 ms |
11140 KB |
Output is correct |
51 |
Correct |
92 ms |
25464 KB |
Output is correct |
52 |
Correct |
92 ms |
28020 KB |
Output is correct |
53 |
Correct |
40 ms |
11416 KB |
Output is correct |
54 |
Correct |
6 ms |
5000 KB |
Output is correct |
55 |
Correct |
10 ms |
7940 KB |
Output is correct |
56 |
Correct |
23 ms |
7692 KB |
Output is correct |
57 |
Correct |
103 ms |
50656 KB |
Output is correct |
58 |
Correct |
21 ms |
8592 KB |
Output is correct |
59 |
Correct |
27 ms |
10012 KB |
Output is correct |
60 |
Correct |
31 ms |
13728 KB |
Output is correct |
61 |
Correct |
27 ms |
9468 KB |
Output is correct |
62 |
Correct |
69 ms |
32204 KB |
Output is correct |
63 |
Correct |
266 ms |
141428 KB |
Output is correct |
64 |
Correct |
314 ms |
168892 KB |
Output is correct |
65 |
Correct |
406 ms |
235916 KB |
Output is correct |
66 |
Runtime error |
234 ms |
262148 KB |
Execution killed with signal 9 |
67 |
Halted |
0 ms |
0 KB |
- |