#include<bits/stdc++.h>
using namespace std;
const int INF = 1e9;
const int LIM = 0;
int n,m;
int b[30005],p[30005];
set<pair<int,int>> ofrest[LIM+2][LIM+2][2];
int dist[300005];
priority_queue<pair<int,int>> pq;
vector<int> onpoz[30005];
signed main()
{
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];
onpoz[b[i]].push_back(i);
}
dist[b[0]]=0;
for(int i=0;i<n;i++)
{
for(int j=1;j<=LIM;j++)
{
ofrest[j][i%j][0].insert({dist[i]-i/j,i});
ofrest[j][i%j][1].insert({dist[i]+i/j,i});
}
}
pq.push({0,b[0]});
while(!pq.empty())
{
int cdist = -pq.top().first;
int poz = pq.top().second;
pq.pop();
if(dist[poz]!=cdist)
continue;
for(int id:onpoz[poz])
{
assert(b[id]==poz);
if(p[id] > LIM)
{
for(int i=1;poz+i*p[id]<n;i++)
{
int cpoz = poz+i*p[id];
if(dist[cpoz] > dist[poz]+i)
{
dist[cpoz] = dist[poz]+i;
pq.push({-dist[cpoz],cpoz});
}
}
for(int i=1;poz-i*p[id]>=0;i++)
{
int cpoz = poz-i*p[id];
if(dist[cpoz] > dist[poz]+i)
{
dist[cpoz] = dist[poz]+i;
pq.push({-dist[cpoz],cpoz});
}
}
}
else
{
}
}
}
if(dist[b[1]]==INF)
cout<<-1;
else
cout<<dist[b[1]];
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1112 KB |
Output is correct |
2 |
Correct |
0 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 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1116 KB |
Output is correct |
2 |
Correct |
0 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 |
1112 KB |
Output is correct |
9 |
Correct |
1 ms |
1112 KB |
Output is correct |
10 |
Correct |
1 ms |
1116 KB |
Output is correct |
11 |
Correct |
2 ms |
1116 KB |
Output is correct |
12 |
Correct |
1 ms |
1144 KB |
Output is correct |
13 |
Correct |
1 ms |
1116 KB |
Output is correct |
14 |
Correct |
1 ms |
1164 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 |
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 |
1128 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 |
2 ms |
1112 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 |
4 ms |
1296 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 |
1116 KB |
Output is correct |
26 |
Correct |
4 ms |
1116 KB |
Output is correct |
27 |
Correct |
3 ms |
1224 KB |
Output is correct |
28 |
Correct |
2 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 |
1112 KB |
Output is correct |
32 |
Correct |
1 ms |
1116 KB |
Output is correct |
33 |
Correct |
2 ms |
1364 KB |
Output is correct |
34 |
Correct |
2 ms |
1372 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 |
1148 KB |
Output is correct |
5 |
Correct |
1 ms |
1116 KB |
Output is correct |
6 |
Correct |
1 ms |
1116 KB |
Output is correct |
7 |
Correct |
0 ms |
1116 KB |
Output is correct |
8 |
Correct |
1 ms |
1152 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 |
1112 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 |
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 |
4 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 |
2 ms |
1116 KB |
Output is correct |
25 |
Correct |
2 ms |
1116 KB |
Output is correct |
26 |
Correct |
4 ms |
1116 KB |
Output is correct |
27 |
Correct |
4 ms |
1112 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 |
1116 KB |
Output is correct |
34 |
Correct |
2 ms |
1368 KB |
Output is correct |
35 |
Correct |
9 ms |
1656 KB |
Output is correct |
36 |
Correct |
3 ms |
1116 KB |
Output is correct |
37 |
Correct |
11 ms |
1636 KB |
Output is correct |
38 |
Correct |
13 ms |
1880 KB |
Output is correct |
39 |
Correct |
10 ms |
1880 KB |
Output is correct |
40 |
Correct |
11 ms |
1996 KB |
Output is correct |
41 |
Correct |
11 ms |
1880 KB |
Output is correct |
42 |
Correct |
48 ms |
1732 KB |
Output is correct |
43 |
Correct |
50 ms |
1628 KB |
Output is correct |
44 |
Correct |
47 ms |
1712 KB |
Output is correct |
45 |
Correct |
9 ms |
1884 KB |
Output is correct |
46 |
Correct |
10 ms |
1884 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 |
0 ms |
1116 KB |
Output is correct |
6 |
Correct |
0 ms |
1116 KB |
Output is correct |
7 |
Correct |
1 ms |
1112 KB |
Output is correct |
8 |
Correct |
1 ms |
1368 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 |
1172 KB |
Output is correct |
13 |
Correct |
1 ms |
1204 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 |
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 |
1112 KB |
Output is correct |
20 |
Correct |
5 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 |
1116 KB |
Output is correct |
26 |
Correct |
4 ms |
1116 KB |
Output is correct |
27 |
Correct |
3 ms |
1216 KB |
Output is correct |
28 |
Correct |
1 ms |
1116 KB |
Output is correct |
29 |
Correct |
2 ms |
1184 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 |
2 ms |
1156 KB |
Output is correct |
34 |
Correct |
2 ms |
1368 KB |
Output is correct |
35 |
Correct |
12 ms |
1628 KB |
Output is correct |
36 |
Correct |
2 ms |
1112 KB |
Output is correct |
37 |
Correct |
8 ms |
1628 KB |
Output is correct |
38 |
Correct |
11 ms |
1884 KB |
Output is correct |
39 |
Correct |
10 ms |
1936 KB |
Output is correct |
40 |
Correct |
11 ms |
1772 KB |
Output is correct |
41 |
Correct |
11 ms |
1872 KB |
Output is correct |
42 |
Correct |
48 ms |
1628 KB |
Output is correct |
43 |
Correct |
49 ms |
1624 KB |
Output is correct |
44 |
Correct |
47 ms |
1628 KB |
Output is correct |
45 |
Correct |
9 ms |
1880 KB |
Output is correct |
46 |
Correct |
10 ms |
1868 KB |
Output is correct |
47 |
Correct |
17 ms |
2520 KB |
Output is correct |
48 |
Correct |
10 ms |
1884 KB |
Output is correct |
49 |
Correct |
9 ms |
1868 KB |
Output is correct |
50 |
Correct |
7 ms |
1884 KB |
Output is correct |
51 |
Correct |
29 ms |
3556 KB |
Output is correct |
52 |
Correct |
24 ms |
2844 KB |
Output is correct |
53 |
Correct |
16 ms |
3036 KB |
Output is correct |
54 |
Correct |
2 ms |
1372 KB |
Output is correct |
55 |
Correct |
2 ms |
1412 KB |
Output is correct |
56 |
Correct |
764 ms |
2988 KB |
Output is correct |
57 |
Correct |
38 ms |
3544 KB |
Output is correct |
58 |
Correct |
783 ms |
1972 KB |
Output is correct |
59 |
Correct |
684 ms |
2088 KB |
Output is correct |
60 |
Correct |
811 ms |
2068 KB |
Output is correct |
61 |
Correct |
660 ms |
2108 KB |
Output is correct |
62 |
Correct |
23 ms |
2760 KB |
Output is correct |
63 |
Correct |
26 ms |
3032 KB |
Output is correct |
64 |
Correct |
28 ms |
2876 KB |
Output is correct |
65 |
Correct |
28 ms |
2880 KB |
Output is correct |
66 |
Correct |
38 ms |
3928 KB |
Output is correct |
67 |
Correct |
39 ms |
3952 KB |
Output is correct |