#pragma GCC optimize("Ofast")
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define sz(a) (int)(a.size())
#define all(a) a.begin(),a.end()
#define lb lower_bound
#define ub upper_bound
#define owo ios_base::sync_with_stdio(0);cin.tie(0);
#define MOD (ll)(1e9+7)
#define INF (ll)(1e18)
#define debug(...) fprintf(stderr, __VA_ARGS__),fflush(stderr)
#define time__(d) for(long blockTime = 0; (blockTime == 0 ? (blockTime=clock()) != 0 : false);\
debug("%s time : %.4fs\n", d, (double)(clock() - blockTime) / CLOCKS_PER_SEC))
typedef long long int ll;
typedef long double ld;
typedef pair<ll,ll> PII;
typedef pair<int,int> pii;
typedef vector<vector<int>> vii;
typedef vector<vector<ll>> VII;
ll gcd(ll a,ll b){if(!b)return a;else return gcd(b,a%b);}
const int sq = 300;
vector<vector<bool>>has(30001,vector<bool>(300));
vii power(30001);
vector<int>dist(30001,1e9);
int main()
{
owo
int n,m;
cin>>n>>m;
vector<int>b(m),p(m);
for(int i=0;i<m;i++){
cin>>b[i]>>p[i];
if(p[i] < sq){
if(!has[b[i]][p[i]])power[b[i]].pb(p[i]);
has[b[i]][p[i]] = 1;
}else{
power[b[i]].pb(p[i]);
}
}
dist[b[0]] = 0;
priority_queue<pii,vector<pii>,greater<pii>>pq;
pq.push({0,b[0]});
while(!pq.empty()){
int v = pq.top().se;
int d = pq.top().fi;
pq.pop();
if(d != dist[v])continue;
if(v == b[1]){
cout<<d;
return 0;
}
//cout<<v<<" "<<d<<'\n';
for(int p:power[v]){
for(int x=v+p;x<n;x+=p){
if(d + (x-v)/p < dist[x]){
dist[x] = d + (x-v)/p;
pq.push({dist[x],x});
}
if(p < sq && has[x][p])break; //has power no need to look further
}
for(int x=v-p;x>=0;x-=p){
if(d + (v-x)/p < dist[x]){
dist[x] = d + (v-x)/p;
pq.push({dist[x],x});
}
if(p < sq && has[x][p])break; //has power no need to look further
}
}
}
cout<<-1;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
8 ms |
3660 KB |
Output is correct |
2 |
Correct |
8 ms |
3660 KB |
Output is correct |
3 |
Correct |
8 ms |
3660 KB |
Output is correct |
4 |
Correct |
8 ms |
3740 KB |
Output is correct |
5 |
Correct |
8 ms |
3692 KB |
Output is correct |
6 |
Correct |
8 ms |
3652 KB |
Output is correct |
7 |
Correct |
8 ms |
3660 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
8 ms |
3736 KB |
Output is correct |
2 |
Correct |
8 ms |
3660 KB |
Output is correct |
3 |
Correct |
8 ms |
3660 KB |
Output is correct |
4 |
Correct |
10 ms |
3632 KB |
Output is correct |
5 |
Correct |
8 ms |
3736 KB |
Output is correct |
6 |
Correct |
9 ms |
3660 KB |
Output is correct |
7 |
Correct |
8 ms |
3660 KB |
Output is correct |
8 |
Correct |
8 ms |
3660 KB |
Output is correct |
9 |
Correct |
8 ms |
3660 KB |
Output is correct |
10 |
Correct |
8 ms |
3648 KB |
Output is correct |
11 |
Correct |
8 ms |
3744 KB |
Output is correct |
12 |
Correct |
9 ms |
3724 KB |
Output is correct |
13 |
Correct |
8 ms |
3660 KB |
Output is correct |
14 |
Correct |
9 ms |
3744 KB |
Output is correct |
15 |
Correct |
9 ms |
3736 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
8 ms |
3660 KB |
Output is correct |
2 |
Correct |
8 ms |
3700 KB |
Output is correct |
3 |
Correct |
8 ms |
3720 KB |
Output is correct |
4 |
Correct |
8 ms |
3660 KB |
Output is correct |
5 |
Correct |
8 ms |
3660 KB |
Output is correct |
6 |
Correct |
8 ms |
3696 KB |
Output is correct |
7 |
Correct |
8 ms |
3660 KB |
Output is correct |
8 |
Correct |
10 ms |
3660 KB |
Output is correct |
9 |
Correct |
9 ms |
3660 KB |
Output is correct |
10 |
Correct |
10 ms |
3736 KB |
Output is correct |
11 |
Correct |
8 ms |
3748 KB |
Output is correct |
12 |
Correct |
9 ms |
3660 KB |
Output is correct |
13 |
Correct |
9 ms |
3660 KB |
Output is correct |
14 |
Correct |
9 ms |
3688 KB |
Output is correct |
15 |
Correct |
9 ms |
3660 KB |
Output is correct |
16 |
Correct |
9 ms |
3668 KB |
Output is correct |
17 |
Correct |
9 ms |
3788 KB |
Output is correct |
18 |
Correct |
8 ms |
3740 KB |
Output is correct |
19 |
Correct |
8 ms |
3664 KB |
Output is correct |
20 |
Correct |
9 ms |
3744 KB |
Output is correct |
21 |
Correct |
8 ms |
3660 KB |
Output is correct |
22 |
Correct |
9 ms |
3740 KB |
Output is correct |
23 |
Correct |
9 ms |
3680 KB |
Output is correct |
24 |
Correct |
9 ms |
3788 KB |
Output is correct |
25 |
Correct |
9 ms |
3740 KB |
Output is correct |
26 |
Correct |
8 ms |
3660 KB |
Output is correct |
27 |
Correct |
8 ms |
3660 KB |
Output is correct |
28 |
Correct |
9 ms |
3788 KB |
Output is correct |
29 |
Correct |
10 ms |
3868 KB |
Output is correct |
30 |
Correct |
9 ms |
3824 KB |
Output is correct |
31 |
Correct |
9 ms |
3788 KB |
Output is correct |
32 |
Correct |
9 ms |
3768 KB |
Output is correct |
33 |
Correct |
11 ms |
3916 KB |
Output is correct |
34 |
Correct |
11 ms |
3992 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
9 ms |
3660 KB |
Output is correct |
2 |
Correct |
8 ms |
3640 KB |
Output is correct |
3 |
Correct |
8 ms |
3632 KB |
Output is correct |
4 |
Correct |
10 ms |
3728 KB |
Output is correct |
5 |
Correct |
8 ms |
3660 KB |
Output is correct |
6 |
Correct |
8 ms |
3660 KB |
Output is correct |
7 |
Correct |
8 ms |
3660 KB |
Output is correct |
8 |
Correct |
8 ms |
3732 KB |
Output is correct |
9 |
Correct |
8 ms |
3692 KB |
Output is correct |
10 |
Correct |
8 ms |
3660 KB |
Output is correct |
11 |
Correct |
9 ms |
3744 KB |
Output is correct |
12 |
Correct |
8 ms |
3660 KB |
Output is correct |
13 |
Correct |
8 ms |
3744 KB |
Output is correct |
14 |
Correct |
8 ms |
3736 KB |
Output is correct |
15 |
Correct |
9 ms |
3660 KB |
Output is correct |
16 |
Correct |
8 ms |
3740 KB |
Output is correct |
17 |
Correct |
9 ms |
3748 KB |
Output is correct |
18 |
Correct |
9 ms |
3740 KB |
Output is correct |
19 |
Correct |
8 ms |
3660 KB |
Output is correct |
20 |
Correct |
9 ms |
3788 KB |
Output is correct |
21 |
Correct |
8 ms |
3760 KB |
Output is correct |
22 |
Correct |
8 ms |
3660 KB |
Output is correct |
23 |
Correct |
9 ms |
3788 KB |
Output is correct |
24 |
Correct |
11 ms |
3740 KB |
Output is correct |
25 |
Correct |
9 ms |
3748 KB |
Output is correct |
26 |
Correct |
10 ms |
3744 KB |
Output is correct |
27 |
Correct |
8 ms |
3660 KB |
Output is correct |
28 |
Correct |
9 ms |
3736 KB |
Output is correct |
29 |
Correct |
11 ms |
3916 KB |
Output is correct |
30 |
Correct |
9 ms |
3788 KB |
Output is correct |
31 |
Correct |
9 ms |
3772 KB |
Output is correct |
32 |
Correct |
9 ms |
3788 KB |
Output is correct |
33 |
Correct |
11 ms |
3916 KB |
Output is correct |
34 |
Correct |
10 ms |
3904 KB |
Output is correct |
35 |
Correct |
15 ms |
4308 KB |
Output is correct |
36 |
Correct |
9 ms |
3788 KB |
Output is correct |
37 |
Correct |
14 ms |
4260 KB |
Output is correct |
38 |
Correct |
15 ms |
4560 KB |
Output is correct |
39 |
Correct |
15 ms |
4380 KB |
Output is correct |
40 |
Correct |
15 ms |
4448 KB |
Output is correct |
41 |
Correct |
15 ms |
4516 KB |
Output is correct |
42 |
Correct |
13 ms |
4072 KB |
Output is correct |
43 |
Correct |
13 ms |
4172 KB |
Output is correct |
44 |
Correct |
13 ms |
4176 KB |
Output is correct |
45 |
Correct |
19 ms |
4596 KB |
Output is correct |
46 |
Correct |
18 ms |
4556 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
8 ms |
3660 KB |
Output is correct |
2 |
Correct |
8 ms |
3660 KB |
Output is correct |
3 |
Correct |
8 ms |
3660 KB |
Output is correct |
4 |
Correct |
8 ms |
3732 KB |
Output is correct |
5 |
Correct |
8 ms |
3660 KB |
Output is correct |
6 |
Correct |
8 ms |
3660 KB |
Output is correct |
7 |
Correct |
10 ms |
3664 KB |
Output is correct |
8 |
Correct |
8 ms |
3732 KB |
Output is correct |
9 |
Correct |
10 ms |
3660 KB |
Output is correct |
10 |
Correct |
8 ms |
3688 KB |
Output is correct |
11 |
Correct |
9 ms |
3660 KB |
Output is correct |
12 |
Correct |
11 ms |
3712 KB |
Output is correct |
13 |
Correct |
8 ms |
3660 KB |
Output is correct |
14 |
Correct |
10 ms |
3788 KB |
Output is correct |
15 |
Correct |
8 ms |
3744 KB |
Output is correct |
16 |
Correct |
8 ms |
3660 KB |
Output is correct |
17 |
Correct |
9 ms |
3704 KB |
Output is correct |
18 |
Correct |
8 ms |
3740 KB |
Output is correct |
19 |
Correct |
8 ms |
3700 KB |
Output is correct |
20 |
Correct |
9 ms |
3788 KB |
Output is correct |
21 |
Correct |
8 ms |
3680 KB |
Output is correct |
22 |
Correct |
9 ms |
3660 KB |
Output is correct |
23 |
Correct |
9 ms |
3788 KB |
Output is correct |
24 |
Correct |
9 ms |
3816 KB |
Output is correct |
25 |
Correct |
9 ms |
3788 KB |
Output is correct |
26 |
Correct |
8 ms |
3748 KB |
Output is correct |
27 |
Correct |
9 ms |
3660 KB |
Output is correct |
28 |
Correct |
10 ms |
3740 KB |
Output is correct |
29 |
Correct |
10 ms |
3916 KB |
Output is correct |
30 |
Correct |
9 ms |
3788 KB |
Output is correct |
31 |
Correct |
11 ms |
3788 KB |
Output is correct |
32 |
Correct |
9 ms |
3728 KB |
Output is correct |
33 |
Correct |
13 ms |
3920 KB |
Output is correct |
34 |
Correct |
12 ms |
3916 KB |
Output is correct |
35 |
Correct |
15 ms |
4368 KB |
Output is correct |
36 |
Correct |
9 ms |
3856 KB |
Output is correct |
37 |
Correct |
14 ms |
4252 KB |
Output is correct |
38 |
Correct |
15 ms |
4520 KB |
Output is correct |
39 |
Correct |
16 ms |
4428 KB |
Output is correct |
40 |
Correct |
15 ms |
4460 KB |
Output is correct |
41 |
Correct |
15 ms |
4556 KB |
Output is correct |
42 |
Correct |
14 ms |
4084 KB |
Output is correct |
43 |
Correct |
13 ms |
4172 KB |
Output is correct |
44 |
Correct |
14 ms |
4220 KB |
Output is correct |
45 |
Correct |
17 ms |
4584 KB |
Output is correct |
46 |
Correct |
17 ms |
4556 KB |
Output is correct |
47 |
Correct |
19 ms |
5144 KB |
Output is correct |
48 |
Correct |
14 ms |
4516 KB |
Output is correct |
49 |
Correct |
14 ms |
4560 KB |
Output is correct |
50 |
Correct |
12 ms |
4296 KB |
Output is correct |
51 |
Correct |
25 ms |
5492 KB |
Output is correct |
52 |
Correct |
28 ms |
5448 KB |
Output is correct |
53 |
Correct |
18 ms |
5068 KB |
Output is correct |
54 |
Correct |
10 ms |
3864 KB |
Output is correct |
55 |
Correct |
10 ms |
3984 KB |
Output is correct |
56 |
Correct |
24 ms |
5112 KB |
Output is correct |
57 |
Correct |
12 ms |
4172 KB |
Output is correct |
58 |
Correct |
15 ms |
4300 KB |
Output is correct |
59 |
Correct |
16 ms |
4332 KB |
Output is correct |
60 |
Correct |
16 ms |
4428 KB |
Output is correct |
61 |
Correct |
18 ms |
4428 KB |
Output is correct |
62 |
Correct |
26 ms |
5124 KB |
Output is correct |
63 |
Correct |
53 ms |
5572 KB |
Output is correct |
64 |
Correct |
58 ms |
5516 KB |
Output is correct |
65 |
Correct |
74 ms |
6540 KB |
Output is correct |
66 |
Correct |
110 ms |
6500 KB |
Output is correct |
67 |
Correct |
103 ms |
6552 KB |
Output is correct |