#include <bits/stdc++.h>
typedef long long ll;
#define FOR(i, x, y) for(ll i=x; i<y; i++)
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define ordered_set tree<ll, null_type,greater_equal<int>, rb_tree_tag,tree_order_statistics_node_update>
ll n,m;
ll a,b,baka,imposter,sus, countz,sussy;
vector<vector<ll> > edges[30001];
unordered_set <ll> stuff[30001];
ll dists[30001];
int main(){
FOR(i, 0, 30001){
dists[i] = 1000000000000;
}
cin >> n>>m;
FOR(i, 0, m){
cin >> a >> b;
if(i==0) imposter = a;
if (i==1) baka = a;
stuff[a].insert(b);
}
FOR(k, 0, n){
for(auto&i : stuff[k]){
sus = k;
sussy = i;
countz = 0;
while ((sus+sussy)<n){
sus += sussy;
countz++;
edges[k].push_back({sus, countz});
}
sus = k;
countz = 0;
while ((sus-sussy)>0){
sus -= sussy;
countz++;
edges[k].push_back({sus, countz});
}
}
}
ll src=imposter;
priority_queue<vector<ll>,vector<vector<ll>>, greater<vector<ll>>> pq;
dists[src] = 0;
pq.push({0, src});
while (pq.size()) {
vector<ll> suz = pq.top();
ll cdist, node;
pq.pop();
cdist = suz[0];node=suz[1];
if (cdist != dists[node]) continue;
for (auto& i : edges[node]) {
if (cdist+i[1] < dists[i[0]]) {
pq.push({dists[i[0]] = cdist+i[1], i[0]});
}
}
}
if (dists[baka] != 1000000000000){
cout << dists[baka];
}else{
cout << -1;
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
2764 KB |
Output is correct |
2 |
Correct |
1 ms |
2764 KB |
Output is correct |
3 |
Correct |
2 ms |
2764 KB |
Output is correct |
4 |
Correct |
2 ms |
2764 KB |
Output is correct |
5 |
Correct |
3 ms |
2764 KB |
Output is correct |
6 |
Correct |
2 ms |
2764 KB |
Output is correct |
7 |
Correct |
2 ms |
2764 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
2764 KB |
Output is correct |
2 |
Correct |
2 ms |
2764 KB |
Output is correct |
3 |
Correct |
1 ms |
2764 KB |
Output is correct |
4 |
Correct |
2 ms |
2764 KB |
Output is correct |
5 |
Correct |
2 ms |
2764 KB |
Output is correct |
6 |
Correct |
2 ms |
2764 KB |
Output is correct |
7 |
Correct |
2 ms |
2764 KB |
Output is correct |
8 |
Correct |
2 ms |
2764 KB |
Output is correct |
9 |
Correct |
1 ms |
2892 KB |
Output is correct |
10 |
Correct |
2 ms |
2892 KB |
Output is correct |
11 |
Correct |
3 ms |
3404 KB |
Output is correct |
12 |
Correct |
2 ms |
2892 KB |
Output is correct |
13 |
Correct |
3 ms |
3404 KB |
Output is correct |
14 |
Correct |
4 ms |
3148 KB |
Output is correct |
15 |
Correct |
3 ms |
3148 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
2764 KB |
Output is correct |
2 |
Correct |
2 ms |
2880 KB |
Output is correct |
3 |
Correct |
2 ms |
2764 KB |
Output is correct |
4 |
Correct |
2 ms |
2764 KB |
Output is correct |
5 |
Correct |
2 ms |
2764 KB |
Output is correct |
6 |
Correct |
2 ms |
2764 KB |
Output is correct |
7 |
Correct |
1 ms |
2764 KB |
Output is correct |
8 |
Correct |
2 ms |
2892 KB |
Output is correct |
9 |
Correct |
2 ms |
2892 KB |
Output is correct |
10 |
Correct |
2 ms |
2892 KB |
Output is correct |
11 |
Correct |
3 ms |
3404 KB |
Output is correct |
12 |
Correct |
3 ms |
2892 KB |
Output is correct |
13 |
Correct |
3 ms |
3404 KB |
Output is correct |
14 |
Correct |
4 ms |
3276 KB |
Output is correct |
15 |
Correct |
3 ms |
3148 KB |
Output is correct |
16 |
Correct |
2 ms |
3148 KB |
Output is correct |
17 |
Correct |
4 ms |
4300 KB |
Output is correct |
18 |
Correct |
4 ms |
3276 KB |
Output is correct |
19 |
Correct |
3 ms |
3148 KB |
Output is correct |
20 |
Correct |
247 ms |
224744 KB |
Output is correct |
21 |
Correct |
3 ms |
3020 KB |
Output is correct |
22 |
Correct |
2 ms |
3148 KB |
Output is correct |
23 |
Correct |
3 ms |
3344 KB |
Output is correct |
24 |
Correct |
4 ms |
3788 KB |
Output is correct |
25 |
Correct |
5 ms |
3660 KB |
Output is correct |
26 |
Correct |
4 ms |
3532 KB |
Output is correct |
27 |
Correct |
4 ms |
3276 KB |
Output is correct |
28 |
Incorrect |
7 ms |
4428 KB |
Output isn't correct |
29 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
2764 KB |
Output is correct |
2 |
Correct |
2 ms |
2764 KB |
Output is correct |
3 |
Correct |
2 ms |
2764 KB |
Output is correct |
4 |
Correct |
2 ms |
2764 KB |
Output is correct |
5 |
Correct |
2 ms |
2764 KB |
Output is correct |
6 |
Correct |
2 ms |
2764 KB |
Output is correct |
7 |
Correct |
2 ms |
2764 KB |
Output is correct |
8 |
Correct |
2 ms |
2764 KB |
Output is correct |
9 |
Correct |
2 ms |
2892 KB |
Output is correct |
10 |
Correct |
2 ms |
2892 KB |
Output is correct |
11 |
Correct |
3 ms |
3404 KB |
Output is correct |
12 |
Correct |
2 ms |
2892 KB |
Output is correct |
13 |
Correct |
3 ms |
3404 KB |
Output is correct |
14 |
Correct |
3 ms |
3148 KB |
Output is correct |
15 |
Correct |
3 ms |
3148 KB |
Output is correct |
16 |
Correct |
2 ms |
3148 KB |
Output is correct |
17 |
Correct |
5 ms |
4428 KB |
Output is correct |
18 |
Correct |
3 ms |
3276 KB |
Output is correct |
19 |
Correct |
2 ms |
3148 KB |
Output is correct |
20 |
Correct |
292 ms |
224684 KB |
Output is correct |
21 |
Correct |
2 ms |
3020 KB |
Output is correct |
22 |
Correct |
2 ms |
3276 KB |
Output is correct |
23 |
Correct |
3 ms |
3276 KB |
Output is correct |
24 |
Correct |
4 ms |
3788 KB |
Output is correct |
25 |
Correct |
5 ms |
3660 KB |
Output is correct |
26 |
Correct |
4 ms |
3532 KB |
Output is correct |
27 |
Correct |
3 ms |
3276 KB |
Output is correct |
28 |
Incorrect |
5 ms |
4428 KB |
Output isn't correct |
29 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
2764 KB |
Output is correct |
2 |
Correct |
3 ms |
2764 KB |
Output is correct |
3 |
Correct |
2 ms |
2764 KB |
Output is correct |
4 |
Correct |
2 ms |
2764 KB |
Output is correct |
5 |
Correct |
2 ms |
2764 KB |
Output is correct |
6 |
Correct |
2 ms |
2832 KB |
Output is correct |
7 |
Correct |
2 ms |
2764 KB |
Output is correct |
8 |
Correct |
2 ms |
2764 KB |
Output is correct |
9 |
Correct |
2 ms |
2892 KB |
Output is correct |
10 |
Correct |
2 ms |
2892 KB |
Output is correct |
11 |
Correct |
3 ms |
3404 KB |
Output is correct |
12 |
Correct |
2 ms |
2832 KB |
Output is correct |
13 |
Correct |
3 ms |
3404 KB |
Output is correct |
14 |
Correct |
4 ms |
3148 KB |
Output is correct |
15 |
Correct |
3 ms |
3148 KB |
Output is correct |
16 |
Correct |
3 ms |
3148 KB |
Output is correct |
17 |
Correct |
5 ms |
4300 KB |
Output is correct |
18 |
Correct |
3 ms |
3276 KB |
Output is correct |
19 |
Correct |
4 ms |
3104 KB |
Output is correct |
20 |
Correct |
236 ms |
224640 KB |
Output is correct |
21 |
Correct |
2 ms |
3020 KB |
Output is correct |
22 |
Correct |
3 ms |
3276 KB |
Output is correct |
23 |
Correct |
3 ms |
3388 KB |
Output is correct |
24 |
Correct |
4 ms |
3788 KB |
Output is correct |
25 |
Correct |
4 ms |
3660 KB |
Output is correct |
26 |
Correct |
4 ms |
3532 KB |
Output is correct |
27 |
Correct |
4 ms |
3328 KB |
Output is correct |
28 |
Incorrect |
4 ms |
4428 KB |
Output isn't correct |
29 |
Halted |
0 ms |
0 KB |
- |