//IN THE NAME OF GOD
#include<bits/stdc++.h>
#pragma GCC optimize("O2,unroll-loops")
#define endl '\n'
#define F first
#define S second
#define all(x) x.begin(),x.end()
#define pb push_back
using namespace std;
typedef long long ll;
#pragma GCC target("avx2")
const int N = 3e4+7, inf = 1e9;
int a[N], p[N], d[N], mark[N];
vector<int> g[N];
priority_queue<pair<int,int>,vector<pair<int,int>>,greater<pair<int,int>>> q;
int v,u;
void dij(int n){
fill(d,d+n,inf);
d[a[0]] = 0;
q.push({0,a[0]});
while(q.size()){
v = q.top().S;
q.pop();
if (v == a[1]) return;
if (mark[v]) continue;
mark[v] = 1;
for (int p : g[v]){
for(int i=1; v+i*p<n; i++){
u = v + i * p;
if (d[u] > d[v] + i){
d[u] = d[v] + i;
q.push({d[u],u});
}
}
for(int i=1; v-i*p>=0; i++){
u = v - i*p;
if (d[u] > d[v] + i){
d[u] = d[v] + i;
q.push({d[u],u});
}
}
}
}
}
int32_t main(){
ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
int n,m; cin >> n >> m;
for(int i=0; i<m; i++){
cin >> a[i] >> p[i];
g[a[i]].pb(p[i]);
}
dij(n);
cout << (d[a[1]] == inf ? -1 : d[a[1]]) << endl;
return 0;
}
# |
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 |
1116 KB |
Output is correct |
6 |
Correct |
1 ms |
1116 KB |
Output is correct |
7 |
Correct |
0 ms |
1116 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 |
0 ms |
1116 KB |
Output is correct |
4 |
Correct |
0 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 |
0 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 |
1112 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 |
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 |
0 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 |
1184 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 |
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 |
1368 KB |
Output is correct |
21 |
Correct |
1 ms |
1116 KB |
Output is correct |
22 |
Correct |
1 ms |
1160 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 |
1112 KB |
Output is correct |
26 |
Correct |
1 ms |
1112 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 |
1372 KB |
Output is correct |
30 |
Correct |
1 ms |
1116 KB |
Output is correct |
31 |
Correct |
1 ms |
1116 KB |
Output is correct |
32 |
Correct |
1 ms |
1116 KB |
Output is correct |
33 |
Correct |
2 ms |
1368 KB |
Output is correct |
34 |
Correct |
2 ms |
1368 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 |
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 |
1116 KB |
Output is correct |
9 |
Correct |
0 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 |
16 |
Correct |
1 ms |
1116 KB |
Output is correct |
17 |
Correct |
2 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 |
5 ms |
1112 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 |
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 |
1372 KB |
Output is correct |
30 |
Correct |
2 ms |
1116 KB |
Output is correct |
31 |
Correct |
2 ms |
1112 KB |
Output is correct |
32 |
Correct |
1 ms |
1116 KB |
Output is correct |
33 |
Correct |
2 ms |
1372 KB |
Output is correct |
34 |
Correct |
2 ms |
1372 KB |
Output is correct |
35 |
Correct |
5 ms |
1624 KB |
Output is correct |
36 |
Correct |
2 ms |
1116 KB |
Output is correct |
37 |
Correct |
4 ms |
1492 KB |
Output is correct |
38 |
Correct |
6 ms |
1664 KB |
Output is correct |
39 |
Correct |
5 ms |
1628 KB |
Output is correct |
40 |
Correct |
5 ms |
1628 KB |
Output is correct |
41 |
Correct |
5 ms |
1624 KB |
Output is correct |
42 |
Correct |
5 ms |
1624 KB |
Output is correct |
43 |
Correct |
4 ms |
1628 KB |
Output is correct |
44 |
Correct |
57 ms |
1640 KB |
Output is correct |
45 |
Correct |
8 ms |
1628 KB |
Output is correct |
46 |
Correct |
7 ms |
1780 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 |
1112 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 |
1116 KB |
Output is correct |
16 |
Correct |
1 ms |
1116 KB |
Output is correct |
17 |
Correct |
2 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 |
1368 KB |
Output is correct |
21 |
Correct |
1 ms |
1116 KB |
Output is correct |
22 |
Correct |
1 ms |
1112 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 |
3 ms |
1368 KB |
Output is correct |
30 |
Correct |
1 ms |
1116 KB |
Output is correct |
31 |
Correct |
1 ms |
1116 KB |
Output is correct |
32 |
Correct |
1 ms |
1112 KB |
Output is correct |
33 |
Correct |
3 ms |
1372 KB |
Output is correct |
34 |
Correct |
2 ms |
1372 KB |
Output is correct |
35 |
Correct |
7 ms |
1628 KB |
Output is correct |
36 |
Correct |
1 ms |
1112 KB |
Output is correct |
37 |
Correct |
6 ms |
1624 KB |
Output is correct |
38 |
Correct |
5 ms |
1628 KB |
Output is correct |
39 |
Correct |
5 ms |
1540 KB |
Output is correct |
40 |
Correct |
5 ms |
1624 KB |
Output is correct |
41 |
Correct |
5 ms |
1628 KB |
Output is correct |
42 |
Correct |
3 ms |
1628 KB |
Output is correct |
43 |
Correct |
4 ms |
1628 KB |
Output is correct |
44 |
Correct |
53 ms |
1624 KB |
Output is correct |
45 |
Correct |
5 ms |
1624 KB |
Output is correct |
46 |
Correct |
5 ms |
1628 KB |
Output is correct |
47 |
Correct |
7 ms |
2264 KB |
Output is correct |
48 |
Correct |
5 ms |
1884 KB |
Output is correct |
49 |
Correct |
4 ms |
1884 KB |
Output is correct |
50 |
Correct |
3 ms |
1628 KB |
Output is correct |
51 |
Correct |
11 ms |
3596 KB |
Output is correct |
52 |
Correct |
11 ms |
2776 KB |
Output is correct |
53 |
Correct |
6 ms |
2396 KB |
Output is correct |
54 |
Correct |
2 ms |
1628 KB |
Output is correct |
55 |
Correct |
2 ms |
1628 KB |
Output is correct |
56 |
Correct |
764 ms |
2836 KB |
Output is correct |
57 |
Correct |
3 ms |
2008 KB |
Output is correct |
58 |
Correct |
749 ms |
1988 KB |
Output is correct |
59 |
Correct |
6 ms |
2140 KB |
Output is correct |
60 |
Correct |
6 ms |
2152 KB |
Output is correct |
61 |
Correct |
6 ms |
2136 KB |
Output is correct |
62 |
Correct |
7 ms |
2856 KB |
Output is correct |
63 |
Correct |
24 ms |
3224 KB |
Output is correct |
64 |
Correct |
25 ms |
4048 KB |
Output is correct |
65 |
Correct |
30 ms |
4056 KB |
Output is correct |
66 |
Correct |
43 ms |
4112 KB |
Output is correct |
67 |
Correct |
31 ms |
4300 KB |
Output is correct |