#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
#define f(i,a,b) for( ll i = a; i < b ; i++ )
#define af(i,a,b) for( ll i = a; i >= b ; i--)
#define rep(i,a,b,k) for(ll i = a; i < b ; i+= k )
#define arep(i,a,b,k) for( ll i = a; i >= b ; i-= k)
#define ones(ini) (ll) __builtin_popcountll(x)
#define cuantos(a,x) count(all(a),x)
#define fs first
#define sc second
#define pb push_back
#define po pop_back
#define sz(a) (ll) a.size()
#define all(a) a.begin(), a.end()
#define sor(a) sort( a.begin(), a.end() )
#define fastio ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0)
#define ller ios::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr)
#define watch(x) cout << (#x) << " is " << (x) <<"\n"
#define test ll deftestcases;cin>>deftestcases;while(deftestcases--)
#define PI acos(-1)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> ii;
typedef vector<ll> vi;
typedef vector<ii> vii;
template<class T> using ordered_set =tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update> ;
const ll inf = 2e18;
const ll mod = 1e9+7;
const ll MAX = 1e6+10;
vii adj[MAX];
vi aux[MAX];
ll dis[MAX];
void dijkstra(ll root,ll n){
f(i,0,n+4){
dis[i] = -1;
}
priority_queue<ii,vii,greater<ii>> pq;
dis[root] = 0;
pq.push({dis[root],root});
while(sz(pq)){
ll u = pq.top().sc;
ll d = pq.top().fs;
pq.pop();
if(dis[u]!=d) continue;
for(auto v : adj[u]){
ll to = v.fs,w = v.sc;
if(dis[to]==-1 || dis[u]+w<dis[to]){
dis[to] = dis[u]+w;
pq.push({dis[to],to});
}
}
}
}
void ida(ll u,ll n){
for(auto pod : aux[u]){
ll to = 0,mul=1;
while(to<=n){
to = pod*mul+u;
if(to>n) break;
adj[u].pb({to,mul});
mul++;
}
}
}
void vuelta(ll u){
for(auto pod : aux[u]){
ll to = 0,mul=1;
while(to>=0){
to = u-pod*mul;
if(to<0) break;
adj[u].pb({to,mul});
mul++;
}
}
}
int main(){
fastio;
ll n,m;cin>>n>>m;
ll ini=0,meta=0;
f(i,0,m){
ll b,p;cin>>b>>p;
if(!i) ini = b;
if(i==1) {meta = b;continue;}
aux[b].pb(p);
}
f(u,0,n){
ida(u,n);
vuelta(u);
}
dijkstra(ini,n);
cout<<dis[meta]<<"\n";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
25 ms |
47180 KB |
Output is correct |
2 |
Correct |
25 ms |
47256 KB |
Output is correct |
3 |
Correct |
25 ms |
47208 KB |
Output is correct |
4 |
Correct |
25 ms |
47280 KB |
Output is correct |
5 |
Correct |
24 ms |
47236 KB |
Output is correct |
6 |
Correct |
25 ms |
47168 KB |
Output is correct |
7 |
Correct |
24 ms |
47180 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
29 ms |
47264 KB |
Output is correct |
2 |
Correct |
31 ms |
47268 KB |
Output is correct |
3 |
Correct |
25 ms |
47284 KB |
Output is correct |
4 |
Correct |
25 ms |
47192 KB |
Output is correct |
5 |
Correct |
24 ms |
47180 KB |
Output is correct |
6 |
Correct |
26 ms |
47172 KB |
Output is correct |
7 |
Correct |
25 ms |
47244 KB |
Output is correct |
8 |
Correct |
26 ms |
47264 KB |
Output is correct |
9 |
Correct |
25 ms |
47272 KB |
Output is correct |
10 |
Correct |
27 ms |
47280 KB |
Output is correct |
11 |
Correct |
28 ms |
47436 KB |
Output is correct |
12 |
Correct |
32 ms |
51476 KB |
Output is correct |
13 |
Correct |
33 ms |
51740 KB |
Output is correct |
14 |
Correct |
30 ms |
47308 KB |
Output is correct |
15 |
Correct |
26 ms |
47380 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
25 ms |
47188 KB |
Output is correct |
2 |
Correct |
24 ms |
47284 KB |
Output is correct |
3 |
Correct |
24 ms |
47180 KB |
Output is correct |
4 |
Correct |
25 ms |
47248 KB |
Output is correct |
5 |
Correct |
26 ms |
47280 KB |
Output is correct |
6 |
Correct |
27 ms |
47208 KB |
Output is correct |
7 |
Correct |
25 ms |
47256 KB |
Output is correct |
8 |
Correct |
25 ms |
47288 KB |
Output is correct |
9 |
Correct |
25 ms |
47252 KB |
Output is correct |
10 |
Correct |
26 ms |
47368 KB |
Output is correct |
11 |
Correct |
27 ms |
47516 KB |
Output is correct |
12 |
Correct |
32 ms |
51524 KB |
Output is correct |
13 |
Correct |
30 ms |
51716 KB |
Output is correct |
14 |
Correct |
27 ms |
47396 KB |
Output is correct |
15 |
Correct |
26 ms |
47328 KB |
Output is correct |
16 |
Correct |
27 ms |
47308 KB |
Output is correct |
17 |
Correct |
27 ms |
47816 KB |
Output is correct |
18 |
Correct |
31 ms |
47388 KB |
Output is correct |
19 |
Correct |
25 ms |
47356 KB |
Output is correct |
20 |
Correct |
84 ms |
111460 KB |
Output is correct |
21 |
Correct |
28 ms |
47332 KB |
Output is correct |
22 |
Correct |
25 ms |
47436 KB |
Output is correct |
23 |
Correct |
26 ms |
47420 KB |
Output is correct |
24 |
Correct |
29 ms |
47568 KB |
Output is correct |
25 |
Correct |
27 ms |
47480 KB |
Output is correct |
26 |
Correct |
96 ms |
113176 KB |
Output is correct |
27 |
Correct |
95 ms |
113100 KB |
Output is correct |
28 |
Correct |
27 ms |
47684 KB |
Output is correct |
29 |
Correct |
28 ms |
48716 KB |
Output is correct |
30 |
Correct |
26 ms |
47716 KB |
Output is correct |
31 |
Correct |
28 ms |
48096 KB |
Output is correct |
32 |
Correct |
27 ms |
47816 KB |
Output is correct |
33 |
Correct |
30 ms |
49760 KB |
Output is correct |
34 |
Correct |
29 ms |
49616 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
25 ms |
47292 KB |
Output is correct |
2 |
Correct |
25 ms |
47180 KB |
Output is correct |
3 |
Correct |
26 ms |
47228 KB |
Output is correct |
4 |
Correct |
26 ms |
47156 KB |
Output is correct |
5 |
Correct |
26 ms |
47268 KB |
Output is correct |
6 |
Correct |
26 ms |
47180 KB |
Output is correct |
7 |
Correct |
26 ms |
47224 KB |
Output is correct |
8 |
Correct |
26 ms |
47248 KB |
Output is correct |
9 |
Correct |
25 ms |
47180 KB |
Output is correct |
10 |
Correct |
27 ms |
47240 KB |
Output is correct |
11 |
Correct |
26 ms |
47440 KB |
Output is correct |
12 |
Correct |
30 ms |
51524 KB |
Output is correct |
13 |
Correct |
30 ms |
51772 KB |
Output is correct |
14 |
Correct |
26 ms |
47308 KB |
Output is correct |
15 |
Correct |
26 ms |
47360 KB |
Output is correct |
16 |
Correct |
26 ms |
47436 KB |
Output is correct |
17 |
Correct |
27 ms |
47820 KB |
Output is correct |
18 |
Correct |
25 ms |
47432 KB |
Output is correct |
19 |
Correct |
26 ms |
47384 KB |
Output is correct |
20 |
Correct |
83 ms |
111508 KB |
Output is correct |
21 |
Correct |
26 ms |
47340 KB |
Output is correct |
22 |
Correct |
25 ms |
47436 KB |
Output is correct |
23 |
Correct |
26 ms |
47464 KB |
Output is correct |
24 |
Correct |
28 ms |
47668 KB |
Output is correct |
25 |
Correct |
27 ms |
47436 KB |
Output is correct |
26 |
Correct |
94 ms |
113356 KB |
Output is correct |
27 |
Correct |
93 ms |
113096 KB |
Output is correct |
28 |
Correct |
26 ms |
47780 KB |
Output is correct |
29 |
Correct |
29 ms |
48752 KB |
Output is correct |
30 |
Correct |
27 ms |
47800 KB |
Output is correct |
31 |
Correct |
27 ms |
48100 KB |
Output is correct |
32 |
Correct |
27 ms |
47824 KB |
Output is correct |
33 |
Correct |
29 ms |
49736 KB |
Output is correct |
34 |
Correct |
31 ms |
49740 KB |
Output is correct |
35 |
Correct |
34 ms |
50548 KB |
Output is correct |
36 |
Correct |
27 ms |
47728 KB |
Output is correct |
37 |
Correct |
36 ms |
53700 KB |
Output is correct |
38 |
Correct |
38 ms |
52540 KB |
Output is correct |
39 |
Correct |
38 ms |
52832 KB |
Output is correct |
40 |
Correct |
37 ms |
52576 KB |
Output is correct |
41 |
Correct |
38 ms |
52420 KB |
Output is correct |
42 |
Runtime error |
213 ms |
262148 KB |
Execution killed with signal 9 |
43 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
25 ms |
47280 KB |
Output is correct |
2 |
Correct |
26 ms |
47180 KB |
Output is correct |
3 |
Correct |
25 ms |
47180 KB |
Output is correct |
4 |
Correct |
25 ms |
47240 KB |
Output is correct |
5 |
Correct |
27 ms |
47212 KB |
Output is correct |
6 |
Correct |
26 ms |
47260 KB |
Output is correct |
7 |
Correct |
25 ms |
47172 KB |
Output is correct |
8 |
Correct |
25 ms |
47236 KB |
Output is correct |
9 |
Correct |
26 ms |
47188 KB |
Output is correct |
10 |
Correct |
26 ms |
47308 KB |
Output is correct |
11 |
Correct |
26 ms |
47420 KB |
Output is correct |
12 |
Correct |
30 ms |
51552 KB |
Output is correct |
13 |
Correct |
30 ms |
51756 KB |
Output is correct |
14 |
Correct |
26 ms |
47312 KB |
Output is correct |
15 |
Correct |
25 ms |
47428 KB |
Output is correct |
16 |
Correct |
28 ms |
47368 KB |
Output is correct |
17 |
Correct |
27 ms |
47736 KB |
Output is correct |
18 |
Correct |
26 ms |
47372 KB |
Output is correct |
19 |
Correct |
26 ms |
47428 KB |
Output is correct |
20 |
Correct |
82 ms |
111428 KB |
Output is correct |
21 |
Correct |
26 ms |
47320 KB |
Output is correct |
22 |
Correct |
27 ms |
47420 KB |
Output is correct |
23 |
Correct |
26 ms |
47480 KB |
Output is correct |
24 |
Correct |
27 ms |
47564 KB |
Output is correct |
25 |
Correct |
27 ms |
47428 KB |
Output is correct |
26 |
Correct |
98 ms |
113160 KB |
Output is correct |
27 |
Correct |
92 ms |
113172 KB |
Output is correct |
28 |
Correct |
28 ms |
47708 KB |
Output is correct |
29 |
Correct |
28 ms |
48764 KB |
Output is correct |
30 |
Correct |
27 ms |
47820 KB |
Output is correct |
31 |
Correct |
27 ms |
48072 KB |
Output is correct |
32 |
Correct |
27 ms |
47820 KB |
Output is correct |
33 |
Correct |
31 ms |
49728 KB |
Output is correct |
34 |
Correct |
30 ms |
49616 KB |
Output is correct |
35 |
Correct |
35 ms |
50500 KB |
Output is correct |
36 |
Correct |
27 ms |
47692 KB |
Output is correct |
37 |
Correct |
36 ms |
53764 KB |
Output is correct |
38 |
Correct |
37 ms |
52548 KB |
Output is correct |
39 |
Correct |
37 ms |
52864 KB |
Output is correct |
40 |
Correct |
38 ms |
52664 KB |
Output is correct |
41 |
Correct |
39 ms |
52496 KB |
Output is correct |
42 |
Runtime error |
206 ms |
262148 KB |
Execution killed with signal 9 |
43 |
Halted |
0 ms |
0 KB |
- |