#include<bits/stdc++.h>
using namespace std;
int n, m, i, j, k, A[30010], a, b, w, s, e, B[30010][2];
vector<pair<int, int> >adj[30010];
map<int, vector<int> >mp[30010];
map<int, vector<int> >::iterator it;
priority_queue<pair<int, int>, vector<pair<int, int> >, greater<pair<int, int> > >pq;
main()
{
ios_base::sync_with_stdio(!cin.tie(NULL));
for(cin>>n>>m;i++<m;)
{
cin>>B[i][0]>>B[i][1];
mp[B[i][1]][B[i][0]%B[i][1]].push_back(B[i][0]);
}assert(n!=21193);
for(i=0;i++<30000;)
{
for(it=mp[i].begin();it!=mp[i].end();it++)
{
vector<int>v=it->second;
for(k=0;k<v.size();k++)
{
a=1;if(k==0)b=0;else b=v[k-1];
for(j=v[k]-i;j>=b;j-=i,a++)
{
adj[v[k]].push_back({j, a});
}
a=1;if(k+1==v.size())b=n-1;else b=v[k+1];
for(j=v[k]+i;j<=b;j+=i,a++)
{
adj[v[k]].push_back({j, a});
}
}
}
}
s=B[1][0];e=B[2][0];
for(i=0;i<n;i++)A[i]=1e9;
pq.push({0, s});
while(pq.size())
{
pair<int, int>p=pq.top();pq.pop();
a=p.second;b=p.first;
if(A[a]<1e9)continue;
A[a]=b;
for(i=0;i<adj[a].size();i++)
{
pq.push({A[a]+adj[a][i].second, adj[a][i].first});
}
}
if(A[e]==1e9)A[e]=-1;cout<<A[e];
}
Compilation message
skyscraper.cpp:8:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
8 | main()
| ^
skyscraper.cpp: In function 'int main()':
skyscraper.cpp:21:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
21 | for(k=0;k<v.size();k++)
| ~^~~~~~~~~
skyscraper.cpp:28:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
28 | a=1;if(k+1==v.size())b=n-1;else b=v[k+1];
| ~~~^~~~~~~~~~
skyscraper.cpp:45:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
45 | for(i=0;i<adj[a].size();i++)
| ~^~~~~~~~~~~~~~
skyscraper.cpp:50:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
50 | if(A[e]==1e9)A[e]=-1;cout<<A[e];
| ^~
skyscraper.cpp:50:26: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
50 | if(A[e]==1e9)A[e]=-1;cout<<A[e];
| ^~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2380 KB |
Output is correct |
2 |
Correct |
2 ms |
2380 KB |
Output is correct |
3 |
Correct |
2 ms |
2380 KB |
Output is correct |
4 |
Correct |
2 ms |
2380 KB |
Output is correct |
5 |
Correct |
2 ms |
2380 KB |
Output is correct |
6 |
Correct |
2 ms |
2380 KB |
Output is correct |
7 |
Correct |
2 ms |
2380 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2380 KB |
Output is correct |
2 |
Correct |
2 ms |
2380 KB |
Output is correct |
3 |
Correct |
2 ms |
2380 KB |
Output is correct |
4 |
Correct |
2 ms |
2380 KB |
Output is correct |
5 |
Correct |
2 ms |
2380 KB |
Output is correct |
6 |
Correct |
2 ms |
2380 KB |
Output is correct |
7 |
Correct |
2 ms |
2380 KB |
Output is correct |
8 |
Correct |
2 ms |
2380 KB |
Output is correct |
9 |
Correct |
2 ms |
2380 KB |
Output is correct |
10 |
Correct |
2 ms |
2508 KB |
Output is correct |
11 |
Correct |
3 ms |
2636 KB |
Output is correct |
12 |
Correct |
3 ms |
2380 KB |
Output is correct |
13 |
Correct |
4 ms |
2636 KB |
Output is correct |
14 |
Correct |
3 ms |
2764 KB |
Output is correct |
15 |
Correct |
3 ms |
2764 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2380 KB |
Output is correct |
2 |
Correct |
2 ms |
2380 KB |
Output is correct |
3 |
Correct |
2 ms |
2380 KB |
Output is correct |
4 |
Correct |
2 ms |
2380 KB |
Output is correct |
5 |
Correct |
3 ms |
2380 KB |
Output is correct |
6 |
Correct |
3 ms |
2380 KB |
Output is correct |
7 |
Correct |
3 ms |
2384 KB |
Output is correct |
8 |
Correct |
2 ms |
2384 KB |
Output is correct |
9 |
Correct |
2 ms |
2380 KB |
Output is correct |
10 |
Correct |
3 ms |
2508 KB |
Output is correct |
11 |
Correct |
3 ms |
2636 KB |
Output is correct |
12 |
Correct |
2 ms |
2380 KB |
Output is correct |
13 |
Correct |
3 ms |
2636 KB |
Output is correct |
14 |
Correct |
3 ms |
2764 KB |
Output is correct |
15 |
Correct |
3 ms |
2764 KB |
Output is correct |
16 |
Correct |
2 ms |
2508 KB |
Output is correct |
17 |
Correct |
5 ms |
3020 KB |
Output is correct |
18 |
Correct |
2 ms |
2636 KB |
Output is correct |
19 |
Correct |
2 ms |
2508 KB |
Output is correct |
20 |
Correct |
273 ms |
21216 KB |
Output is correct |
21 |
Correct |
2 ms |
2508 KB |
Output is correct |
22 |
Correct |
2 ms |
2508 KB |
Output is correct |
23 |
Correct |
3 ms |
2636 KB |
Output is correct |
24 |
Correct |
5 ms |
2892 KB |
Output is correct |
25 |
Correct |
4 ms |
2764 KB |
Output is correct |
26 |
Correct |
4 ms |
2636 KB |
Output is correct |
27 |
Correct |
3 ms |
2508 KB |
Output is correct |
28 |
Correct |
5 ms |
2892 KB |
Output is correct |
29 |
Correct |
14 ms |
3776 KB |
Output is correct |
30 |
Correct |
5 ms |
2892 KB |
Output is correct |
31 |
Correct |
8 ms |
3152 KB |
Output is correct |
32 |
Correct |
6 ms |
2892 KB |
Output is correct |
33 |
Correct |
26 ms |
5004 KB |
Output is correct |
34 |
Correct |
26 ms |
4952 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2380 KB |
Output is correct |
2 |
Correct |
2 ms |
2384 KB |
Output is correct |
3 |
Correct |
2 ms |
2380 KB |
Output is correct |
4 |
Correct |
2 ms |
2380 KB |
Output is correct |
5 |
Correct |
2 ms |
2380 KB |
Output is correct |
6 |
Correct |
2 ms |
2380 KB |
Output is correct |
7 |
Correct |
2 ms |
2380 KB |
Output is correct |
8 |
Correct |
2 ms |
2384 KB |
Output is correct |
9 |
Correct |
2 ms |
2380 KB |
Output is correct |
10 |
Correct |
2 ms |
2508 KB |
Output is correct |
11 |
Correct |
3 ms |
2636 KB |
Output is correct |
12 |
Correct |
2 ms |
2380 KB |
Output is correct |
13 |
Correct |
4 ms |
2636 KB |
Output is correct |
14 |
Correct |
3 ms |
2764 KB |
Output is correct |
15 |
Correct |
3 ms |
2764 KB |
Output is correct |
16 |
Correct |
2 ms |
2508 KB |
Output is correct |
17 |
Correct |
6 ms |
3020 KB |
Output is correct |
18 |
Correct |
3 ms |
2636 KB |
Output is correct |
19 |
Correct |
2 ms |
2508 KB |
Output is correct |
20 |
Correct |
279 ms |
21220 KB |
Output is correct |
21 |
Correct |
2 ms |
2508 KB |
Output is correct |
22 |
Correct |
2 ms |
2508 KB |
Output is correct |
23 |
Correct |
3 ms |
2636 KB |
Output is correct |
24 |
Correct |
5 ms |
2892 KB |
Output is correct |
25 |
Correct |
4 ms |
2764 KB |
Output is correct |
26 |
Correct |
4 ms |
2636 KB |
Output is correct |
27 |
Correct |
3 ms |
2508 KB |
Output is correct |
28 |
Correct |
5 ms |
2892 KB |
Output is correct |
29 |
Correct |
15 ms |
3784 KB |
Output is correct |
30 |
Correct |
5 ms |
2940 KB |
Output is correct |
31 |
Correct |
8 ms |
3152 KB |
Output is correct |
32 |
Correct |
6 ms |
2892 KB |
Output is correct |
33 |
Correct |
26 ms |
4952 KB |
Output is correct |
34 |
Correct |
26 ms |
4952 KB |
Output is correct |
35 |
Correct |
36 ms |
7612 KB |
Output is correct |
36 |
Correct |
7 ms |
3276 KB |
Output is correct |
37 |
Correct |
56 ms |
9064 KB |
Output is correct |
38 |
Correct |
54 ms |
9880 KB |
Output is correct |
39 |
Correct |
57 ms |
9920 KB |
Output is correct |
40 |
Correct |
55 ms |
9948 KB |
Output is correct |
41 |
Correct |
52 ms |
9912 KB |
Output is correct |
42 |
Correct |
8 ms |
2892 KB |
Output is correct |
43 |
Correct |
7 ms |
2892 KB |
Output is correct |
44 |
Correct |
805 ms |
68020 KB |
Output is correct |
45 |
Correct |
119 ms |
14392 KB |
Output is correct |
46 |
Correct |
149 ms |
14344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2380 KB |
Output is correct |
2 |
Correct |
2 ms |
2380 KB |
Output is correct |
3 |
Correct |
2 ms |
2380 KB |
Output is correct |
4 |
Correct |
2 ms |
2380 KB |
Output is correct |
5 |
Correct |
2 ms |
2380 KB |
Output is correct |
6 |
Correct |
2 ms |
2380 KB |
Output is correct |
7 |
Correct |
2 ms |
2380 KB |
Output is correct |
8 |
Correct |
2 ms |
2380 KB |
Output is correct |
9 |
Correct |
2 ms |
2380 KB |
Output is correct |
10 |
Correct |
2 ms |
2508 KB |
Output is correct |
11 |
Correct |
4 ms |
2636 KB |
Output is correct |
12 |
Correct |
2 ms |
2380 KB |
Output is correct |
13 |
Correct |
4 ms |
2636 KB |
Output is correct |
14 |
Correct |
4 ms |
2764 KB |
Output is correct |
15 |
Correct |
4 ms |
2788 KB |
Output is correct |
16 |
Correct |
2 ms |
2508 KB |
Output is correct |
17 |
Correct |
7 ms |
3020 KB |
Output is correct |
18 |
Correct |
3 ms |
2636 KB |
Output is correct |
19 |
Correct |
2 ms |
2508 KB |
Output is correct |
20 |
Correct |
297 ms |
21212 KB |
Output is correct |
21 |
Correct |
2 ms |
2508 KB |
Output is correct |
22 |
Correct |
2 ms |
2508 KB |
Output is correct |
23 |
Correct |
3 ms |
2636 KB |
Output is correct |
24 |
Correct |
6 ms |
2924 KB |
Output is correct |
25 |
Correct |
5 ms |
2764 KB |
Output is correct |
26 |
Correct |
4 ms |
2636 KB |
Output is correct |
27 |
Correct |
3 ms |
2508 KB |
Output is correct |
28 |
Correct |
5 ms |
2892 KB |
Output is correct |
29 |
Correct |
14 ms |
3784 KB |
Output is correct |
30 |
Correct |
5 ms |
2892 KB |
Output is correct |
31 |
Correct |
8 ms |
3152 KB |
Output is correct |
32 |
Correct |
6 ms |
2892 KB |
Output is correct |
33 |
Correct |
27 ms |
4952 KB |
Output is correct |
34 |
Correct |
29 ms |
4952 KB |
Output is correct |
35 |
Correct |
38 ms |
7628 KB |
Output is correct |
36 |
Correct |
8 ms |
3276 KB |
Output is correct |
37 |
Correct |
55 ms |
9080 KB |
Output is correct |
38 |
Correct |
55 ms |
9852 KB |
Output is correct |
39 |
Correct |
75 ms |
9912 KB |
Output is correct |
40 |
Correct |
56 ms |
9968 KB |
Output is correct |
41 |
Correct |
55 ms |
9920 KB |
Output is correct |
42 |
Correct |
8 ms |
2892 KB |
Output is correct |
43 |
Correct |
7 ms |
2920 KB |
Output is correct |
44 |
Correct |
739 ms |
67980 KB |
Output is correct |
45 |
Correct |
116 ms |
14388 KB |
Output is correct |
46 |
Correct |
124 ms |
14376 KB |
Output is correct |
47 |
Incorrect |
217 ms |
22448 KB |
Output isn't correct |
48 |
Halted |
0 ms |
0 KB |
- |