#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<ll,ll>
priority_queue<pii,vector<pii>,greater<pii>> pq;
vector<ll> doges[30002];
bool vis[30002];
ll jmp[30002];
ll odl[30002];
ll n,m,oo=1e14;
void Dijkstra(ll pos, ll kon){
fill(odl,odl+n,oo);
odl[pos]=0;
pq.push({0,pos});
ll iter;
while(pq.size()){
auto [d,v]=pq.top();
pq.pop();
if (d>odl[v])continue;
if (v==kon)break;
for (auto u : doges[v]) if (!vis[u]){
vis[u]=true;
iter=1;
for (ll i = v+jmp[u]; i<n; i+=jmp[u]){
if (odl[i]>d+iter){
odl[i]=d+iter;
pq.push({d+iter,i});
}
iter++;
}
iter=1;
for (ll i = v-jmp[u]; i>=0; i-=jmp[u]){
if (odl[i]>d+iter){
odl[i]=d+iter;
pq.push({d+iter,i});
}
iter++;
}
}
}
if (odl[kon]==oo)cout << "-1\n";
else cout << odl[kon] << '\n';
}
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
ll b,p,st,nd;
cin >> n >> m;
cin >> st >> jmp[1];
doges[st].push_back(1);
cin >> nd >> p;
for (ll i = 2; i<m; i++){
cin >> b >> jmp[i];
doges[b].push_back(i);
}
Dijkstra(st,nd);
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
1112 KB |
Output is correct |
| 2 |
Correct |
1 ms |
1112 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 |
| # |
결과 |
실행 시간 |
메모리 |
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 |
1112 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 |
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 |
| # |
결과 |
실행 시간 |
메모리 |
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 |
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 |
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 |
1112 KB |
Output is correct |
| 16 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 17 |
Correct |
1 ms |
1220 KB |
Output is correct |
| 18 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 19 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 20 |
Correct |
3 ms |
1116 KB |
Output is correct |
| 21 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 22 |
Correct |
1 ms |
1368 KB |
Output is correct |
| 23 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 24 |
Correct |
2 ms |
1368 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 |
2 ms |
1500 KB |
Output is correct |
| 30 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 31 |
Correct |
1 ms |
1368 KB |
Output is correct |
| 32 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 33 |
Correct |
2 ms |
1628 KB |
Output is correct |
| 34 |
Correct |
2 ms |
1624 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
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 |
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 |
1112 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 |
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 |
4 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 |
1500 KB |
Output is correct |
| 30 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 31 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 32 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 33 |
Correct |
2 ms |
1452 KB |
Output is correct |
| 34 |
Correct |
2 ms |
1628 KB |
Output is correct |
| 35 |
Correct |
5 ms |
1884 KB |
Output is correct |
| 36 |
Correct |
1 ms |
1112 KB |
Output is correct |
| 37 |
Correct |
4 ms |
1628 KB |
Output is correct |
| 38 |
Correct |
5 ms |
1884 KB |
Output is correct |
| 39 |
Correct |
5 ms |
1884 KB |
Output is correct |
| 40 |
Correct |
5 ms |
1884 KB |
Output is correct |
| 41 |
Correct |
5 ms |
1884 KB |
Output is correct |
| 42 |
Correct |
4 ms |
1756 KB |
Output is correct |
| 43 |
Correct |
3 ms |
1756 KB |
Output is correct |
| 44 |
Correct |
40 ms |
1796 KB |
Output is correct |
| 45 |
Correct |
6 ms |
2140 KB |
Output is correct |
| 46 |
Correct |
5 ms |
2260 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
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 |
1368 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 |
1112 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 |
4 ms |
1116 KB |
Output is correct |
| 21 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 22 |
Correct |
1 ms |
1120 KB |
Output is correct |
| 23 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 24 |
Correct |
1 ms |
1124 KB |
Output is correct |
| 25 |
Correct |
2 ms |
1124 KB |
Output is correct |
| 26 |
Correct |
1 ms |
1124 KB |
Output is correct |
| 27 |
Correct |
1 ms |
1124 KB |
Output is correct |
| 28 |
Correct |
1 ms |
1120 KB |
Output is correct |
| 29 |
Correct |
2 ms |
1500 KB |
Output is correct |
| 30 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 31 |
Correct |
1 ms |
1368 KB |
Output is correct |
| 32 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 33 |
Correct |
2 ms |
1628 KB |
Output is correct |
| 34 |
Correct |
2 ms |
1628 KB |
Output is correct |
| 35 |
Correct |
5 ms |
1884 KB |
Output is correct |
| 36 |
Correct |
2 ms |
1116 KB |
Output is correct |
| 37 |
Correct |
4 ms |
1624 KB |
Output is correct |
| 38 |
Correct |
5 ms |
1884 KB |
Output is correct |
| 39 |
Correct |
5 ms |
1768 KB |
Output is correct |
| 40 |
Correct |
5 ms |
1884 KB |
Output is correct |
| 41 |
Correct |
5 ms |
1884 KB |
Output is correct |
| 42 |
Correct |
5 ms |
1756 KB |
Output is correct |
| 43 |
Correct |
4 ms |
1752 KB |
Output is correct |
| 44 |
Correct |
42 ms |
1796 KB |
Output is correct |
| 45 |
Correct |
6 ms |
2392 KB |
Output is correct |
| 46 |
Correct |
5 ms |
2184 KB |
Output is correct |
| 47 |
Correct |
8 ms |
3044 KB |
Output is correct |
| 48 |
Correct |
5 ms |
1884 KB |
Output is correct |
| 49 |
Correct |
4 ms |
2008 KB |
Output is correct |
| 50 |
Correct |
4 ms |
1880 KB |
Output is correct |
| 51 |
Correct |
13 ms |
4308 KB |
Output is correct |
| 52 |
Correct |
12 ms |
3288 KB |
Output is correct |
| 53 |
Correct |
7 ms |
2648 KB |
Output is correct |
| 54 |
Correct |
2 ms |
1756 KB |
Output is correct |
| 55 |
Correct |
2 ms |
1680 KB |
Output is correct |
| 56 |
Correct |
516 ms |
3036 KB |
Output is correct |
| 57 |
Correct |
3 ms |
2768 KB |
Output is correct |
| 58 |
Correct |
473 ms |
2496 KB |
Output is correct |
| 59 |
Correct |
6 ms |
2392 KB |
Output is correct |
| 60 |
Correct |
6 ms |
2396 KB |
Output is correct |
| 61 |
Correct |
6 ms |
2524 KB |
Output is correct |
| 62 |
Correct |
7 ms |
2888 KB |
Output is correct |
| 63 |
Correct |
26 ms |
4560 KB |
Output is correct |
| 64 |
Correct |
27 ms |
7636 KB |
Output is correct |
| 65 |
Correct |
31 ms |
6600 KB |
Output is correct |
| 66 |
Correct |
44 ms |
8356 KB |
Output is correct |
| 67 |
Correct |
38 ms |
7376 KB |
Output is correct |
