#include <bits/stdc++.h>
using namespace std;
#define int long long
priority_queue<pair<int,pair<int,int>>> q;
vector<int> buildings[30001];
int power[30001];
bool visited[30000][174];
const int INF = 1e15;
int n;
const int threshold = 173;
inline void adddoge(int x,int building,int dist){
if(power[x]>threshold){
int minimum = building - power[x] * (building / power[x]);
for (int i = minimum; i < n; i += power[x])
if (!visited[i][0]) {
q.emplace(dist - (abs(building - i) / power[x]), make_pair(i,0));
}
} else {
if(!visited[building][power[x]])q.emplace(dist,make_pair(building,power[x]));
}
}
int32_t main(){
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int m;
cin >> n >> m;
int base,tar;
cin>>base>>power[0]>>tar>>power[1];
buildings[base].emplace_back(0);
buildings[tar].emplace_back(1);
for(int i=2;i<m;i++){
int b;cin>>b>>power[i];
buildings[b].emplace_back(i);
}
q.emplace(0, make_pair(base,0));
while(!q.empty()){
auto curr = q.top();q.pop();
if(visited[curr.second.first][curr.second.second])continue;
visited[curr.second.first][curr.second.second]=true;
if(curr.second.first==tar){
cout << -curr.first << '\n';
return 0;
}
if(curr.second.second==0)for(int&i:buildings[curr.second.first])adddoge(i,curr.second.first,curr.first);
else {
if(!visited[curr.second.first][0])q.emplace(curr.first, make_pair(curr.second.first,0));
if(curr.second.first+curr.second.second<n and !visited[curr.second.first+curr.second.second][curr.second.second])q.emplace(curr.first-1,make_pair(curr.second.first+curr.second.second,curr.second.second));
if(curr.second.first-curr.second.second>=0 and !visited[curr.second.first-curr.second.second][curr.second.second])q.emplace(curr.first-1,make_pair(curr.second.first-curr.second.second,curr.second.second));
}
}
cout << "-1\n";
}
| # |
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 |
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 |
1168 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 |
1168 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 |
1176 KB |
Output is correct |
| 12 |
Correct |
1 ms |
1124 KB |
Output is correct |
| 13 |
Correct |
1 ms |
1204 KB |
Output is correct |
| 14 |
Correct |
2 ms |
1120 KB |
Output is correct |
| 15 |
Correct |
1 ms |
1172 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
1144 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 |
1148 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1144 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1120 KB |
Output is correct |
| 9 |
Correct |
1 ms |
1120 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 11 |
Correct |
1 ms |
1120 KB |
Output is correct |
| 12 |
Correct |
1 ms |
1112 KB |
Output is correct |
| 13 |
Correct |
1 ms |
1184 KB |
Output is correct |
| 14 |
Correct |
2 ms |
1368 KB |
Output is correct |
| 15 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 16 |
Correct |
1 ms |
1120 KB |
Output is correct |
| 17 |
Correct |
1 ms |
1376 KB |
Output is correct |
| 18 |
Correct |
1 ms |
1120 KB |
Output is correct |
| 19 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 20 |
Correct |
1 ms |
1440 KB |
Output is correct |
| 21 |
Correct |
1 ms |
1180 KB |
Output is correct |
| 22 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 23 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 24 |
Correct |
2 ms |
1368 KB |
Output is correct |
| 25 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 26 |
Correct |
1 ms |
1624 KB |
Output is correct |
| 27 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 28 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 29 |
Correct |
6 ms |
1372 KB |
Output is correct |
| 30 |
Correct |
2 ms |
1524 KB |
Output is correct |
| 31 |
Correct |
4 ms |
1576 KB |
Output is correct |
| 32 |
Correct |
3 ms |
1372 KB |
Output is correct |
| 33 |
Correct |
13 ms |
1628 KB |
Output is correct |
| 34 |
Correct |
11 ms |
1484 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
1168 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 |
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 |
2 ms |
1116 KB |
Output is correct |
| 15 |
Correct |
2 ms |
1116 KB |
Output is correct |
| 16 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 17 |
Correct |
2 ms |
1532 KB |
Output is correct |
| 18 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 19 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 20 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 21 |
Correct |
1 ms |
1112 KB |
Output is correct |
| 22 |
Correct |
1 ms |
1112 KB |
Output is correct |
| 23 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 24 |
Correct |
2 ms |
1368 KB |
Output is correct |
| 25 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 26 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 27 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 28 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 29 |
Correct |
6 ms |
1372 KB |
Output is correct |
| 30 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 31 |
Correct |
4 ms |
1372 KB |
Output is correct |
| 32 |
Correct |
3 ms |
1372 KB |
Output is correct |
| 33 |
Correct |
13 ms |
1668 KB |
Output is correct |
| 34 |
Correct |
8 ms |
1628 KB |
Output is correct |
| 35 |
Correct |
6 ms |
2592 KB |
Output is correct |
| 36 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 37 |
Correct |
5 ms |
2908 KB |
Output is correct |
| 38 |
Correct |
8 ms |
3160 KB |
Output is correct |
| 39 |
Correct |
5 ms |
2392 KB |
Output is correct |
| 40 |
Correct |
6 ms |
2612 KB |
Output is correct |
| 41 |
Correct |
8 ms |
3340 KB |
Output is correct |
| 42 |
Correct |
4 ms |
2268 KB |
Output is correct |
| 43 |
Correct |
6 ms |
2268 KB |
Output is correct |
| 44 |
Correct |
4 ms |
2308 KB |
Output is correct |
| 45 |
Correct |
73 ms |
9680 KB |
Output is correct |
| 46 |
Correct |
48 ms |
9680 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
1116 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 |
1164 KB |
Output is correct |
| 5 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1168 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1168 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 |
1176 KB |
Output is correct |
| 14 |
Correct |
2 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 |
2 ms |
1372 KB |
Output is correct |
| 18 |
Correct |
1 ms |
1112 KB |
Output is correct |
| 19 |
Correct |
1 ms |
1116 KB |
Output is correct |
| 20 |
Correct |
1 ms |
1372 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 |
1368 KB |
Output is correct |
| 24 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 25 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 26 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 27 |
Correct |
1 ms |
1580 KB |
Output is correct |
| 28 |
Correct |
2 ms |
1372 KB |
Output is correct |
| 29 |
Correct |
6 ms |
1372 KB |
Output is correct |
| 30 |
Correct |
2 ms |
1420 KB |
Output is correct |
| 31 |
Correct |
4 ms |
1372 KB |
Output is correct |
| 32 |
Correct |
3 ms |
1424 KB |
Output is correct |
| 33 |
Correct |
14 ms |
1668 KB |
Output is correct |
| 34 |
Correct |
8 ms |
1652 KB |
Output is correct |
| 35 |
Correct |
6 ms |
2592 KB |
Output is correct |
| 36 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 37 |
Correct |
5 ms |
2908 KB |
Output is correct |
| 38 |
Correct |
8 ms |
3160 KB |
Output is correct |
| 39 |
Correct |
5 ms |
2140 KB |
Output is correct |
| 40 |
Correct |
5 ms |
2656 KB |
Output is correct |
| 41 |
Correct |
8 ms |
3164 KB |
Output is correct |
| 42 |
Correct |
4 ms |
2268 KB |
Output is correct |
| 43 |
Correct |
4 ms |
2268 KB |
Output is correct |
| 44 |
Correct |
4 ms |
2308 KB |
Output is correct |
| 45 |
Correct |
78 ms |
9020 KB |
Output is correct |
| 46 |
Correct |
48 ms |
8396 KB |
Output is correct |
| 47 |
Correct |
9 ms |
5448 KB |
Output is correct |
| 48 |
Correct |
5 ms |
1880 KB |
Output is correct |
| 49 |
Correct |
5 ms |
1884 KB |
Output is correct |
| 50 |
Correct |
3 ms |
1712 KB |
Output is correct |
| 51 |
Correct |
15 ms |
8276 KB |
Output is correct |
| 52 |
Correct |
23 ms |
9108 KB |
Output is correct |
| 53 |
Correct |
7 ms |
3932 KB |
Output is correct |
| 54 |
Correct |
3 ms |
6236 KB |
Output is correct |
| 55 |
Correct |
4 ms |
6236 KB |
Output is correct |
| 56 |
Correct |
9 ms |
7516 KB |
Output is correct |
| 57 |
Correct |
1 ms |
1372 KB |
Output is correct |
| 58 |
Correct |
10 ms |
7644 KB |
Output is correct |
| 59 |
Correct |
9 ms |
6880 KB |
Output is correct |
| 60 |
Correct |
9 ms |
6944 KB |
Output is correct |
| 61 |
Correct |
8 ms |
7132 KB |
Output is correct |
| 62 |
Correct |
20 ms |
7772 KB |
Output is correct |
| 63 |
Correct |
269 ms |
28068 KB |
Output is correct |
| 64 |
Correct |
315 ms |
30884 KB |
Output is correct |
| 65 |
Correct |
948 ms |
52628 KB |
Output is correct |
| 66 |
Execution timed out |
1055 ms |
101760 KB |
Time limit exceeded |
| 67 |
Halted |
0 ms |
0 KB |
- |
