#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define inf 1e18+100
using namespace std;
const ll N=30300;
priority_queue<pair<ll,ll>>q;
ll n,m;
ll b[N],p[N],dist[N];
vector<ll>a[N];
vector<pair<ll,ll>>v[N];
void fil(ll id){
for(ll i=0;i<n;i++){
if(i==id||a[i].empty())continue;
for(auto j:a[id]){
if((i%p[j])==(id%p[j])){
v[id].pb({i,abs(i-id)/p[j]});
}
}
}
}
int main(){
ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
cin>>n>>m;
for(ll i=0;i<m;i++){
cin>>b[i]>>p[i];
a[b[i]].pb(i);
}
for(ll i=0;i<n;i++){
if(!a[i].empty())fil(i);
}
/*for(ll i=0;i<n;i++){
if(v[i].empty())continue;
cout<<i<<": ";
for(auto j:v[i])cout<<'('<<j.first<<' '<<j.second<<')'<<" ";cout<<endl;
}*/
for(ll i=0;i<n;i++){
dist[i]=inf;
}
q.push({0,b[0]});
dist[b[0]]=0;
while(!q.empty()){
ll u=q.top().second,d=-q.top().first;
q.pop();
if(d>dist[u])continue;
for(auto i:v[u]){
ll ch=i.first,chd=i.second;
if(chd+d<dist[ch]){
dist[ch]=chd+d;
q.push({-dist[ch],ch});
}
}
}
if(dist[b[1]]==inf){cout<<-1<<endl;return 0;}
cout<<dist[b[1]]<<endl;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
1868 KB |
Output is correct |
2 |
Correct |
3 ms |
1792 KB |
Output is correct |
3 |
Correct |
4 ms |
1792 KB |
Output is correct |
4 |
Correct |
4 ms |
1792 KB |
Output is correct |
5 |
Correct |
4 ms |
1792 KB |
Output is correct |
6 |
Correct |
4 ms |
1792 KB |
Output is correct |
7 |
Correct |
3 ms |
1792 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
1792 KB |
Output is correct |
2 |
Correct |
3 ms |
1792 KB |
Output is correct |
3 |
Correct |
3 ms |
1792 KB |
Output is correct |
4 |
Correct |
3 ms |
1792 KB |
Output is correct |
5 |
Correct |
3 ms |
1792 KB |
Output is correct |
6 |
Correct |
4 ms |
1792 KB |
Output is correct |
7 |
Correct |
3 ms |
1792 KB |
Output is correct |
8 |
Correct |
2 ms |
1792 KB |
Output is correct |
9 |
Correct |
3 ms |
1792 KB |
Output is correct |
10 |
Correct |
4 ms |
1792 KB |
Output is correct |
11 |
Correct |
9 ms |
2048 KB |
Output is correct |
12 |
Correct |
5 ms |
2184 KB |
Output is correct |
13 |
Correct |
17 ms |
6256 KB |
Output is correct |
14 |
Correct |
7 ms |
1920 KB |
Output is correct |
15 |
Correct |
8 ms |
1920 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
1792 KB |
Output is correct |
2 |
Correct |
4 ms |
1792 KB |
Output is correct |
3 |
Correct |
3 ms |
1792 KB |
Output is correct |
4 |
Correct |
4 ms |
1792 KB |
Output is correct |
5 |
Correct |
4 ms |
1792 KB |
Output is correct |
6 |
Correct |
4 ms |
1792 KB |
Output is correct |
7 |
Correct |
3 ms |
1792 KB |
Output is correct |
8 |
Correct |
4 ms |
1792 KB |
Output is correct |
9 |
Correct |
4 ms |
1792 KB |
Output is correct |
10 |
Correct |
5 ms |
1792 KB |
Output is correct |
11 |
Correct |
10 ms |
2048 KB |
Output is correct |
12 |
Correct |
5 ms |
2304 KB |
Output is correct |
13 |
Correct |
16 ms |
6256 KB |
Output is correct |
14 |
Correct |
7 ms |
1920 KB |
Output is correct |
15 |
Correct |
6 ms |
1920 KB |
Output is correct |
16 |
Correct |
9 ms |
1920 KB |
Output is correct |
17 |
Correct |
38 ms |
2296 KB |
Output is correct |
18 |
Correct |
28 ms |
1920 KB |
Output is correct |
19 |
Correct |
16 ms |
1792 KB |
Output is correct |
20 |
Correct |
219 ms |
66196 KB |
Output is correct |
21 |
Correct |
12 ms |
1820 KB |
Output is correct |
22 |
Correct |
18 ms |
1916 KB |
Output is correct |
23 |
Correct |
28 ms |
1920 KB |
Output is correct |
24 |
Correct |
65 ms |
2040 KB |
Output is correct |
25 |
Correct |
65 ms |
2044 KB |
Output is correct |
26 |
Correct |
12 ms |
6140 KB |
Output is correct |
27 |
Correct |
12 ms |
4096 KB |
Output is correct |
28 |
Correct |
105 ms |
2424 KB |
Output is correct |
29 |
Correct |
6 ms |
1792 KB |
Output is correct |
30 |
Correct |
3 ms |
1792 KB |
Output is correct |
31 |
Correct |
4 ms |
1792 KB |
Output is correct |
32 |
Correct |
4 ms |
1792 KB |
Output is correct |
33 |
Correct |
6 ms |
1920 KB |
Output is correct |
34 |
Correct |
6 ms |
1920 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
1792 KB |
Output is correct |
2 |
Correct |
4 ms |
1792 KB |
Output is correct |
3 |
Correct |
4 ms |
1792 KB |
Output is correct |
4 |
Correct |
4 ms |
1792 KB |
Output is correct |
5 |
Correct |
8 ms |
1792 KB |
Output is correct |
6 |
Correct |
3 ms |
1792 KB |
Output is correct |
7 |
Correct |
3 ms |
1792 KB |
Output is correct |
8 |
Correct |
3 ms |
1792 KB |
Output is correct |
9 |
Correct |
3 ms |
1792 KB |
Output is correct |
10 |
Correct |
4 ms |
1792 KB |
Output is correct |
11 |
Correct |
8 ms |
2048 KB |
Output is correct |
12 |
Correct |
5 ms |
2304 KB |
Output is correct |
13 |
Correct |
14 ms |
6256 KB |
Output is correct |
14 |
Correct |
6 ms |
1920 KB |
Output is correct |
15 |
Correct |
6 ms |
1920 KB |
Output is correct |
16 |
Correct |
10 ms |
1920 KB |
Output is correct |
17 |
Correct |
34 ms |
2360 KB |
Output is correct |
18 |
Correct |
24 ms |
1920 KB |
Output is correct |
19 |
Correct |
12 ms |
1892 KB |
Output is correct |
20 |
Correct |
189 ms |
66168 KB |
Output is correct |
21 |
Correct |
13 ms |
1792 KB |
Output is correct |
22 |
Correct |
21 ms |
1920 KB |
Output is correct |
23 |
Correct |
27 ms |
1920 KB |
Output is correct |
24 |
Correct |
70 ms |
2040 KB |
Output is correct |
25 |
Correct |
76 ms |
2040 KB |
Output is correct |
26 |
Correct |
18 ms |
6140 KB |
Output is correct |
27 |
Correct |
14 ms |
3968 KB |
Output is correct |
28 |
Correct |
142 ms |
2400 KB |
Output is correct |
29 |
Correct |
4 ms |
1792 KB |
Output is correct |
30 |
Correct |
4 ms |
1792 KB |
Output is correct |
31 |
Correct |
4 ms |
1792 KB |
Output is correct |
32 |
Correct |
4 ms |
1792 KB |
Output is correct |
33 |
Correct |
8 ms |
1920 KB |
Output is correct |
34 |
Correct |
9 ms |
1920 KB |
Output is correct |
35 |
Correct |
840 ms |
5944 KB |
Output is correct |
36 |
Correct |
115 ms |
2356 KB |
Output is correct |
37 |
Correct |
961 ms |
8952 KB |
Output is correct |
38 |
Execution timed out |
1058 ms |
6604 KB |
Time limit exceeded |
39 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
1792 KB |
Output is correct |
2 |
Correct |
4 ms |
1792 KB |
Output is correct |
3 |
Correct |
4 ms |
1792 KB |
Output is correct |
4 |
Correct |
4 ms |
1792 KB |
Output is correct |
5 |
Correct |
4 ms |
1792 KB |
Output is correct |
6 |
Correct |
3 ms |
1792 KB |
Output is correct |
7 |
Correct |
4 ms |
1792 KB |
Output is correct |
8 |
Correct |
3 ms |
1792 KB |
Output is correct |
9 |
Correct |
3 ms |
1792 KB |
Output is correct |
10 |
Correct |
4 ms |
1792 KB |
Output is correct |
11 |
Correct |
8 ms |
2048 KB |
Output is correct |
12 |
Correct |
4 ms |
2184 KB |
Output is correct |
13 |
Correct |
19 ms |
6428 KB |
Output is correct |
14 |
Correct |
7 ms |
1920 KB |
Output is correct |
15 |
Correct |
7 ms |
1920 KB |
Output is correct |
16 |
Correct |
10 ms |
1920 KB |
Output is correct |
17 |
Correct |
40 ms |
2296 KB |
Output is correct |
18 |
Correct |
29 ms |
1900 KB |
Output is correct |
19 |
Correct |
15 ms |
1792 KB |
Output is correct |
20 |
Correct |
254 ms |
66140 KB |
Output is correct |
21 |
Correct |
16 ms |
1920 KB |
Output is correct |
22 |
Correct |
20 ms |
1920 KB |
Output is correct |
23 |
Correct |
26 ms |
1920 KB |
Output is correct |
24 |
Correct |
73 ms |
2168 KB |
Output is correct |
25 |
Correct |
79 ms |
2048 KB |
Output is correct |
26 |
Correct |
13 ms |
6140 KB |
Output is correct |
27 |
Correct |
14 ms |
4096 KB |
Output is correct |
28 |
Correct |
114 ms |
2388 KB |
Output is correct |
29 |
Correct |
5 ms |
1868 KB |
Output is correct |
30 |
Correct |
4 ms |
1792 KB |
Output is correct |
31 |
Correct |
4 ms |
1792 KB |
Output is correct |
32 |
Correct |
5 ms |
1764 KB |
Output is correct |
33 |
Correct |
7 ms |
1920 KB |
Output is correct |
34 |
Correct |
8 ms |
1920 KB |
Output is correct |
35 |
Correct |
926 ms |
5884 KB |
Output is correct |
36 |
Correct |
137 ms |
2424 KB |
Output is correct |
37 |
Correct |
934 ms |
8956 KB |
Output is correct |
38 |
Execution timed out |
1064 ms |
6736 KB |
Time limit exceeded |
39 |
Halted |
0 ms |
0 KB |
- |