#include <bits/stdc++.h>
using namespace std;
struct info{
int badge;
int cur_pos;
int nr_of_jumps;
int type;
};
bool vis[30002];
deque<info> dq;
vector<int> doges[30002];
int jmp[30002];
int n,m;
void bfs01(int doge, int pos, int kon){
dq.push_back({doge,pos,0,1});
dq.push_back({doge,pos,0,-1});
while(dq.size()){
info now=dq.front();
dq.pop_front();
if (now.cur_pos==kon){
cout << now.nr_of_jumps << '\n';
return;
}
for (auto u : doges[now.cur_pos])if (!vis[u]){
vis[u]=true;
if (jmp[u]==jmp[now.badge])continue;
dq.push_front({u,now.cur_pos,now.nr_of_jumps,1});
dq.push_front({u,now.cur_pos,now.nr_of_jumps,-1});
}
if (now.cur_pos>=jmp[now.badge] && now.type==-1){
dq.push_back({now.badge,now.cur_pos-jmp[now.badge],now.nr_of_jumps+1,now.type});
}
if (now.cur_pos+jmp[now.badge]<n && now.type==1){
dq.push_back({now.badge,now.cur_pos+jmp[now.badge],now.nr_of_jumps+1,now.type});
}
}
cout << "-1\n";
}
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
int b,p,st,nd;
cin >> n >> m;
cin >> st >> jmp[0];
doges[st].push_back(0);
cin >> nd >> p;
for (int i = 2; i<m; i++){
cin >> b >> jmp[i];
doges[b].push_back(i);
}
bfs01(0,st,nd);
}
# |
Verdict |
Execution time |
Memory |
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 |
# |
Verdict |
Execution time |
Memory |
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 |
0 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 |
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 |
1116 KB |
Output is correct |
13 |
Correct |
1 ms |
1024 KB |
Output is correct |
14 |
Correct |
2 ms |
1116 KB |
Output is correct |
15 |
Correct |
1 ms |
1116 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
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 |
1112 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 |
1112 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 |
1112 KB |
Output is correct |
15 |
Correct |
1 ms |
1116 KB |
Output is correct |
16 |
Correct |
1 ms |
1112 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 |
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 |
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 |
1116 KB |
Output is correct |
30 |
Correct |
1 ms |
1112 KB |
Output is correct |
31 |
Correct |
2 ms |
1112 KB |
Output is correct |
32 |
Correct |
1 ms |
1116 KB |
Output is correct |
33 |
Correct |
3 ms |
1116 KB |
Output is correct |
34 |
Correct |
2 ms |
1116 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
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 |
0 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 |
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 |
1112 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 |
1140 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 |
1 ms |
1116 KB |
Output is correct |
30 |
Correct |
1 ms |
1112 KB |
Output is correct |
31 |
Correct |
1 ms |
1116 KB |
Output is correct |
32 |
Correct |
1 ms |
1116 KB |
Output is correct |
33 |
Correct |
2 ms |
1200 KB |
Output is correct |
34 |
Correct |
2 ms |
1116 KB |
Output is correct |
35 |
Correct |
7 ms |
1884 KB |
Output is correct |
36 |
Correct |
1 ms |
1112 KB |
Output is correct |
37 |
Correct |
4 ms |
1884 KB |
Output is correct |
38 |
Correct |
5 ms |
1884 KB |
Output is correct |
39 |
Correct |
5 ms |
1628 KB |
Output is correct |
40 |
Correct |
5 ms |
1628 KB |
Output is correct |
41 |
Correct |
7 ms |
2136 KB |
Output is correct |
42 |
Correct |
3 ms |
1628 KB |
Output is correct |
43 |
Correct |
4 ms |
1624 KB |
Output is correct |
44 |
Correct |
3 ms |
1668 KB |
Output is correct |
45 |
Correct |
24 ms |
2136 KB |
Output is correct |
46 |
Correct |
19 ms |
2136 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
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 |
1164 KB |
Output is correct |
9 |
Correct |
1 ms |
1112 KB |
Output is correct |
10 |
Correct |
1 ms |
1112 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 |
1200 KB |
Output is correct |
22 |
Correct |
1 ms |
1116 KB |
Output is correct |
23 |
Correct |
1 ms |
1368 KB |
Output is correct |
24 |
Correct |
1 ms |
1120 KB |
Output is correct |
25 |
Correct |
1 ms |
1236 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 |
1 ms |
1116 KB |
Output is correct |
30 |
Correct |
1 ms |
1116 KB |
Output is correct |
31 |
Correct |
1 ms |
1116 KB |
Output is correct |
32 |
Correct |
1 ms |
1116 KB |
Output is correct |
33 |
Correct |
2 ms |
1212 KB |
Output is correct |
34 |
Correct |
2 ms |
1116 KB |
Output is correct |
35 |
Correct |
6 ms |
2120 KB |
Output is correct |
36 |
Correct |
1 ms |
1116 KB |
Output is correct |
37 |
Correct |
4 ms |
1884 KB |
Output is correct |
38 |
Correct |
5 ms |
1884 KB |
Output is correct |
39 |
Correct |
5 ms |
1624 KB |
Output is correct |
40 |
Correct |
5 ms |
1628 KB |
Output is correct |
41 |
Correct |
7 ms |
2140 KB |
Output is correct |
42 |
Correct |
3 ms |
1628 KB |
Output is correct |
43 |
Correct |
5 ms |
1628 KB |
Output is correct |
44 |
Correct |
4 ms |
1628 KB |
Output is correct |
45 |
Correct |
22 ms |
2140 KB |
Output is correct |
46 |
Correct |
19 ms |
2140 KB |
Output is correct |
47 |
Correct |
6 ms |
1884 KB |
Output is correct |
48 |
Correct |
4 ms |
1884 KB |
Output is correct |
49 |
Correct |
5 ms |
1880 KB |
Output is correct |
50 |
Correct |
3 ms |
1628 KB |
Output is correct |
51 |
Correct |
10 ms |
2140 KB |
Output is correct |
52 |
Correct |
11 ms |
2136 KB |
Output is correct |
53 |
Correct |
6 ms |
2140 KB |
Output is correct |
54 |
Correct |
1 ms |
1116 KB |
Output is correct |
55 |
Correct |
1 ms |
1112 KB |
Output is correct |
56 |
Correct |
6 ms |
2392 KB |
Output is correct |
57 |
Correct |
1 ms |
1116 KB |
Output is correct |
58 |
Execution timed out |
1084 ms |
2532 KB |
Time limit exceeded |
59 |
Halted |
0 ms |
0 KB |
- |