#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define F first
#define S second
#define int long long
const int N=3e4+5;
int a[N],b[N],n,m,dis[N];
vector<pair<int,int>> adj[N];
vector<int> d[N],p[N];
bool vis[N];
priority_queue<pair<int,int>> pq;
void getdiv(int x){
for (int i=1;i*i<=x;i++){
if (x%i) continue;
int y=i,z=x/i;
d[x].pb(y);
if (y!=z) d[x].pb(z);
}sort(d[x].begin(),d[x].end());
return;
}
void dijkstra(){
pq.push({0,a[0]});
while (!pq.empty()){
pair<int,int> x=pq.top();
x.F*=-1;pq.pop();
if (vis[x.S]) continue;
vis[x.S]=true;
for (auto u:adj[x.S]){
if (dis[u.F]<=x.F+u.S) continue;
dis[u.F]=x.F+u.S;
pq.push({-dis[u.F],u.F});
}
}return;
}
int32_t main(){
for (int i=0;i<N;i++){
getdiv(i);
dis[i]=INT_MAX;
}cin>>n>>m;
for (int i=0;i<m;i++){
cin>>a[i]>>b[i];
p[a[i]].pb(b[i]);
}dis[a[0]]=0;
for (int i=0;i<n;i++) sort(p[i].begin(),p[i].end());
for (int i=0;i<n;i++){
for (int j=0;j<n;j++){
if (i==j) continue;
int dist=abs(i-j),x=0,y=0,ans=INT_MAX;
while (x<d[dist].size() && y<p[i].size()){
if (d[dist][x]==p[i][y]){
ans=dist/d[dist][x];
x++;
y++;
continue;
}
if (d[dist][x]<p[i][y]) x++;
else y++;
}
if (ans==INT_MAX) continue;
adj[i].pb({j,ans});
}
}dijkstra();
if (dis[a[1]]==INT_MAX) cout<<-1<<endl;
else cout<<dis[a[1]]<<endl;
return 0;
}
Compilation message
skyscraper.cpp: In function 'int32_t main()':
skyscraper.cpp:50:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
50 | while (x<d[dist].size() && y<p[i].size()){
| ~^~~~~~~~~~~~~~~
skyscraper.cpp:50:41: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
50 | while (x<d[dist].size() && y<p[i].size()){
| ~^~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
29 ms |
5964 KB |
Output is correct |
2 |
Correct |
29 ms |
6024 KB |
Output is correct |
3 |
Correct |
29 ms |
5952 KB |
Output is correct |
4 |
Correct |
30 ms |
6100 KB |
Output is correct |
5 |
Correct |
29 ms |
5972 KB |
Output is correct |
6 |
Correct |
30 ms |
5972 KB |
Output is correct |
7 |
Correct |
29 ms |
5996 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
29 ms |
5972 KB |
Output is correct |
2 |
Correct |
30 ms |
6088 KB |
Output is correct |
3 |
Correct |
29 ms |
6044 KB |
Output is correct |
4 |
Correct |
31 ms |
6068 KB |
Output is correct |
5 |
Correct |
33 ms |
6016 KB |
Output is correct |
6 |
Correct |
30 ms |
6024 KB |
Output is correct |
7 |
Correct |
30 ms |
6028 KB |
Output is correct |
8 |
Correct |
31 ms |
5964 KB |
Output is correct |
9 |
Correct |
30 ms |
6024 KB |
Output is correct |
10 |
Correct |
30 ms |
6028 KB |
Output is correct |
11 |
Correct |
33 ms |
6248 KB |
Output is correct |
12 |
Correct |
31 ms |
6092 KB |
Output is correct |
13 |
Correct |
32 ms |
6344 KB |
Output is correct |
14 |
Correct |
32 ms |
6092 KB |
Output is correct |
15 |
Correct |
31 ms |
6120 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
30 ms |
6080 KB |
Output is correct |
2 |
Correct |
30 ms |
6100 KB |
Output is correct |
3 |
Correct |
31 ms |
6044 KB |
Output is correct |
4 |
Correct |
30 ms |
5968 KB |
Output is correct |
5 |
Correct |
30 ms |
6004 KB |
Output is correct |
6 |
Correct |
30 ms |
6072 KB |
Output is correct |
7 |
Correct |
33 ms |
5992 KB |
Output is correct |
8 |
Correct |
30 ms |
6072 KB |
Output is correct |
9 |
Correct |
32 ms |
6064 KB |
Output is correct |
10 |
Correct |
34 ms |
6088 KB |
Output is correct |
11 |
Correct |
34 ms |
6184 KB |
Output is correct |
12 |
Correct |
32 ms |
6024 KB |
Output is correct |
13 |
Correct |
33 ms |
6236 KB |
Output is correct |
14 |
Correct |
31 ms |
6132 KB |
Output is correct |
15 |
Correct |
31 ms |
6148 KB |
Output is correct |
16 |
Correct |
31 ms |
6092 KB |
Output is correct |
17 |
Correct |
43 ms |
6640 KB |
Output is correct |
18 |
Correct |
61 ms |
6160 KB |
Output is correct |
19 |
Correct |
60 ms |
6148 KB |
Output is correct |
20 |
Correct |
110 ms |
70320 KB |
Output is correct |
21 |
Correct |
32 ms |
6132 KB |
Output is correct |
22 |
Correct |
56 ms |
6136 KB |
Output is correct |
23 |
Correct |
57 ms |
6288 KB |
Output is correct |
24 |
Correct |
83 ms |
6468 KB |
Output is correct |
25 |
Correct |
85 ms |
6356 KB |
Output is correct |
26 |
Correct |
49 ms |
6304 KB |
Output is correct |
27 |
Correct |
55 ms |
6184 KB |
Output is correct |
28 |
Correct |
110 ms |
6624 KB |
Output is correct |
29 |
Correct |
52 ms |
6788 KB |
Output is correct |
30 |
Correct |
44 ms |
6432 KB |
Output is correct |
31 |
Correct |
47 ms |
6748 KB |
Output is correct |
32 |
Correct |
45 ms |
6600 KB |
Output is correct |
33 |
Correct |
52 ms |
7252 KB |
Output is correct |
34 |
Correct |
59 ms |
7268 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
37 ms |
6076 KB |
Output is correct |
2 |
Correct |
31 ms |
6072 KB |
Output is correct |
3 |
Correct |
31 ms |
6072 KB |
Output is correct |
4 |
Correct |
30 ms |
5960 KB |
Output is correct |
5 |
Correct |
31 ms |
6060 KB |
Output is correct |
6 |
Correct |
31 ms |
6100 KB |
Output is correct |
7 |
Correct |
32 ms |
6088 KB |
Output is correct |
8 |
Correct |
37 ms |
6048 KB |
Output is correct |
9 |
Correct |
30 ms |
5976 KB |
Output is correct |
10 |
Correct |
31 ms |
6100 KB |
Output is correct |
11 |
Correct |
32 ms |
6220 KB |
Output is correct |
12 |
Correct |
42 ms |
6076 KB |
Output is correct |
13 |
Correct |
32 ms |
6240 KB |
Output is correct |
14 |
Correct |
32 ms |
6216 KB |
Output is correct |
15 |
Correct |
32 ms |
6212 KB |
Output is correct |
16 |
Correct |
34 ms |
6220 KB |
Output is correct |
17 |
Correct |
44 ms |
6588 KB |
Output is correct |
18 |
Correct |
62 ms |
6152 KB |
Output is correct |
19 |
Correct |
75 ms |
6140 KB |
Output is correct |
20 |
Correct |
113 ms |
70304 KB |
Output is correct |
21 |
Correct |
34 ms |
6092 KB |
Output is correct |
22 |
Correct |
60 ms |
6192 KB |
Output is correct |
23 |
Correct |
56 ms |
6156 KB |
Output is correct |
24 |
Correct |
91 ms |
6464 KB |
Output is correct |
25 |
Correct |
101 ms |
6348 KB |
Output is correct |
26 |
Correct |
68 ms |
6372 KB |
Output is correct |
27 |
Correct |
50 ms |
6184 KB |
Output is correct |
28 |
Correct |
113 ms |
6612 KB |
Output is correct |
29 |
Correct |
48 ms |
6804 KB |
Output is correct |
30 |
Correct |
46 ms |
6504 KB |
Output is correct |
31 |
Correct |
50 ms |
6836 KB |
Output is correct |
32 |
Correct |
50 ms |
6608 KB |
Output is correct |
33 |
Correct |
54 ms |
7256 KB |
Output is correct |
34 |
Correct |
56 ms |
7164 KB |
Output is correct |
35 |
Correct |
128 ms |
9612 KB |
Output is correct |
36 |
Correct |
87 ms |
6552 KB |
Output is correct |
37 |
Correct |
219 ms |
12520 KB |
Output is correct |
38 |
Correct |
220 ms |
11728 KB |
Output is correct |
39 |
Correct |
210 ms |
11964 KB |
Output is correct |
40 |
Correct |
214 ms |
11772 KB |
Output is correct |
41 |
Correct |
216 ms |
11428 KB |
Output is correct |
42 |
Correct |
114 ms |
7180 KB |
Output is correct |
43 |
Correct |
122 ms |
7132 KB |
Output is correct |
44 |
Correct |
172 ms |
71168 KB |
Output is correct |
45 |
Correct |
135 ms |
11284 KB |
Output is correct |
46 |
Correct |
126 ms |
11300 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
32 ms |
6044 KB |
Output is correct |
2 |
Correct |
30 ms |
5964 KB |
Output is correct |
3 |
Correct |
30 ms |
6080 KB |
Output is correct |
4 |
Correct |
30 ms |
5964 KB |
Output is correct |
5 |
Correct |
30 ms |
6100 KB |
Output is correct |
6 |
Correct |
29 ms |
6040 KB |
Output is correct |
7 |
Correct |
31 ms |
6100 KB |
Output is correct |
8 |
Correct |
29 ms |
6072 KB |
Output is correct |
9 |
Correct |
30 ms |
6064 KB |
Output is correct |
10 |
Correct |
30 ms |
6028 KB |
Output is correct |
11 |
Correct |
31 ms |
6220 KB |
Output is correct |
12 |
Correct |
31 ms |
6088 KB |
Output is correct |
13 |
Correct |
31 ms |
6260 KB |
Output is correct |
14 |
Correct |
33 ms |
6092 KB |
Output is correct |
15 |
Correct |
34 ms |
6176 KB |
Output is correct |
16 |
Correct |
33 ms |
6120 KB |
Output is correct |
17 |
Correct |
42 ms |
6612 KB |
Output is correct |
18 |
Correct |
62 ms |
6132 KB |
Output is correct |
19 |
Correct |
58 ms |
6196 KB |
Output is correct |
20 |
Correct |
105 ms |
70376 KB |
Output is correct |
21 |
Correct |
36 ms |
6092 KB |
Output is correct |
22 |
Correct |
59 ms |
6208 KB |
Output is correct |
23 |
Correct |
57 ms |
6204 KB |
Output is correct |
24 |
Correct |
81 ms |
6424 KB |
Output is correct |
25 |
Correct |
84 ms |
6344 KB |
Output is correct |
26 |
Correct |
55 ms |
6316 KB |
Output is correct |
27 |
Correct |
48 ms |
6220 KB |
Output is correct |
28 |
Correct |
103 ms |
6608 KB |
Output is correct |
29 |
Correct |
48 ms |
6848 KB |
Output is correct |
30 |
Correct |
44 ms |
6440 KB |
Output is correct |
31 |
Correct |
54 ms |
6732 KB |
Output is correct |
32 |
Correct |
50 ms |
6624 KB |
Output is correct |
33 |
Correct |
51 ms |
7224 KB |
Output is correct |
34 |
Correct |
51 ms |
7244 KB |
Output is correct |
35 |
Correct |
120 ms |
9616 KB |
Output is correct |
36 |
Correct |
59 ms |
6592 KB |
Output is correct |
37 |
Correct |
204 ms |
12472 KB |
Output is correct |
38 |
Correct |
208 ms |
11644 KB |
Output is correct |
39 |
Correct |
218 ms |
11932 KB |
Output is correct |
40 |
Correct |
212 ms |
11676 KB |
Output is correct |
41 |
Correct |
212 ms |
11576 KB |
Output is correct |
42 |
Correct |
125 ms |
7176 KB |
Output is correct |
43 |
Correct |
114 ms |
7112 KB |
Output is correct |
44 |
Correct |
176 ms |
71192 KB |
Output is correct |
45 |
Correct |
124 ms |
11368 KB |
Output is correct |
46 |
Correct |
124 ms |
11492 KB |
Output is correct |
47 |
Execution timed out |
1094 ms |
12480 KB |
Time limit exceeded |
48 |
Halted |
0 ms |
0 KB |
- |