/*
Editor: Abdelrahman Hossam
Nickname: Blobo2_Blobo2
IOI next year isA :)
*/
/*#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,sse4.2,popcnt,abm,mmx,avx2,tune=native")
#pragma GCC optimize("-ffast-math")
#pragma GCC optimize("-funroll-loops")
#pragma GCC optimize("-funroll-all-loops,-fpeel-loops,-funswitch-loops")*/
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define endl "\n"
#define all(v) v.begin(),v.end()
#define gen(arr,n,nxt) generate(arr,arr+n,nxt)
#define Blobo2_el_7akim_elly_3ayz_yro7_IOI_w_3ayz_yakol_jilaty ios_base::sync_with_stdio(false);cin.tie(0);
const int mo=1e9+7,INF=1e18;
int nxt(){int x;cin>>x;return x;}
signed main(){
Blobo2_el_7akim_elly_3ayz_yro7_IOI_w_3ayz_yakol_jilaty
int n=nxt(),m=nxt();
vector<pair<int,int> >v;
for(int i=0;i<m;i++){
int b=nxt(),p=nxt();
v.push_back({b,p});
}
int from = v[0].first,to = v[1].first;
sort(all(v));
vector<pair<int,int> >adj[n+1];
for(int i=0;i<v.size();i++){
for(int j=i+1;j<v.size();j++){
if(abs(v[i].first-v[j].first)%(v[i].second)==0){
adj[v[i].first].push_back({v[j].first,abs(v[i].first-v[j].first)/(v[i].second)});
if(v[i].second==v[j].second)
break;
}
}
}
for(int i=v.size()-1;i>=0;i--){
for(int j=i-1;j>=0;j--){
if(abs(v[i].first-v[j].first)%(v[i].second)==0){
adj[v[i].first].push_back({v[j].first,abs(v[i].first-v[j].first)/(v[i].second)});
if(v[i].second==v[j].second)
break;
}
}
}
int dis[n],vis[n];
for(int i=0;i<n;i++)
dis[i]=INF,vis[i]=0;
dis[from]=0;
priority_queue<pair<int,int> >q;
q.push({0,from});
while(!q.empty()) {
int a=q.top().second;q.pop();
if(vis[a])continue;
vis[a]=1;
for(auto u:adj[a]){
int b=u.first,w=u.second;
if(dis[a]+w<dis[b]){
dis[b]=dis[a]+w;
q.push({-dis[b],b});
}
}
}
if(dis[to]==INF)cout<<-1<<endl;
else cout<<dis[to]<<endl;
return 0;
}
Compilation message
skyscraper.cpp: In function 'int main()':
skyscraper.cpp:33:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
33 | for(int i=0;i<v.size();i++){
| ~^~~~~~~~~
skyscraper.cpp:34:24: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
34 | for(int j=i+1;j<v.size();j++){
| ~^~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
312 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
312 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
2 ms |
460 KB |
Output is correct |
11 |
Correct |
20 ms |
2484 KB |
Output is correct |
12 |
Correct |
2 ms |
956 KB |
Output is correct |
13 |
Correct |
1 ms |
460 KB |
Output is correct |
14 |
Correct |
24 ms |
2700 KB |
Output is correct |
15 |
Correct |
25 ms |
2816 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
316 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
2 ms |
460 KB |
Output is correct |
11 |
Correct |
20 ms |
2508 KB |
Output is correct |
12 |
Correct |
2 ms |
956 KB |
Output is correct |
13 |
Correct |
1 ms |
460 KB |
Output is correct |
14 |
Correct |
24 ms |
2716 KB |
Output is correct |
15 |
Correct |
24 ms |
2804 KB |
Output is correct |
16 |
Correct |
5 ms |
716 KB |
Output is correct |
17 |
Correct |
19 ms |
1288 KB |
Output is correct |
18 |
Correct |
6 ms |
440 KB |
Output is correct |
19 |
Correct |
2 ms |
332 KB |
Output is correct |
20 |
Correct |
1 ms |
588 KB |
Output is correct |
21 |
Correct |
8 ms |
472 KB |
Output is correct |
22 |
Correct |
4 ms |
332 KB |
Output is correct |
23 |
Correct |
6 ms |
460 KB |
Output is correct |
24 |
Correct |
21 ms |
708 KB |
Output is correct |
25 |
Correct |
23 ms |
692 KB |
Output is correct |
26 |
Correct |
3 ms |
1096 KB |
Output is correct |
27 |
Correct |
12 ms |
8752 KB |
Output is correct |
28 |
Correct |
23 ms |
840 KB |
Output is correct |
29 |
Correct |
4 ms |
972 KB |
Output is correct |
30 |
Correct |
1 ms |
332 KB |
Output is correct |
31 |
Correct |
3 ms |
588 KB |
Output is correct |
32 |
Correct |
2 ms |
460 KB |
Output is correct |
33 |
Correct |
24 ms |
2844 KB |
Output is correct |
34 |
Correct |
24 ms |
2912 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
0 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
312 KB |
Output is correct |
10 |
Correct |
2 ms |
440 KB |
Output is correct |
11 |
Correct |
20 ms |
2456 KB |
Output is correct |
12 |
Correct |
2 ms |
968 KB |
Output is correct |
13 |
Correct |
1 ms |
460 KB |
Output is correct |
14 |
Correct |
24 ms |
2760 KB |
Output is correct |
15 |
Correct |
24 ms |
2776 KB |
Output is correct |
16 |
Correct |
5 ms |
716 KB |
Output is correct |
17 |
Correct |
19 ms |
1228 KB |
Output is correct |
18 |
Correct |
6 ms |
460 KB |
Output is correct |
19 |
Correct |
2 ms |
332 KB |
Output is correct |
20 |
Correct |
1 ms |
588 KB |
Output is correct |
21 |
Correct |
8 ms |
460 KB |
Output is correct |
22 |
Correct |
4 ms |
332 KB |
Output is correct |
23 |
Correct |
6 ms |
464 KB |
Output is correct |
24 |
Correct |
21 ms |
684 KB |
Output is correct |
25 |
Correct |
23 ms |
584 KB |
Output is correct |
26 |
Correct |
3 ms |
1096 KB |
Output is correct |
27 |
Correct |
13 ms |
8812 KB |
Output is correct |
28 |
Correct |
24 ms |
856 KB |
Output is correct |
29 |
Correct |
4 ms |
972 KB |
Output is correct |
30 |
Correct |
1 ms |
332 KB |
Output is correct |
31 |
Correct |
3 ms |
588 KB |
Output is correct |
32 |
Correct |
2 ms |
460 KB |
Output is correct |
33 |
Correct |
24 ms |
2972 KB |
Output is correct |
34 |
Correct |
24 ms |
2956 KB |
Output is correct |
35 |
Execution timed out |
1087 ms |
11736 KB |
Time limit exceeded |
36 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
312 KB |
Output is correct |
6 |
Correct |
0 ms |
208 KB |
Output is correct |
7 |
Correct |
0 ms |
208 KB |
Output is correct |
8 |
Correct |
0 ms |
204 KB |
Output is correct |
9 |
Correct |
0 ms |
204 KB |
Output is correct |
10 |
Correct |
2 ms |
460 KB |
Output is correct |
11 |
Correct |
22 ms |
2508 KB |
Output is correct |
12 |
Correct |
2 ms |
968 KB |
Output is correct |
13 |
Correct |
1 ms |
444 KB |
Output is correct |
14 |
Correct |
25 ms |
2768 KB |
Output is correct |
15 |
Correct |
24 ms |
2768 KB |
Output is correct |
16 |
Correct |
5 ms |
716 KB |
Output is correct |
17 |
Correct |
19 ms |
1384 KB |
Output is correct |
18 |
Correct |
6 ms |
460 KB |
Output is correct |
19 |
Correct |
2 ms |
332 KB |
Output is correct |
20 |
Correct |
1 ms |
588 KB |
Output is correct |
21 |
Correct |
8 ms |
460 KB |
Output is correct |
22 |
Correct |
4 ms |
332 KB |
Output is correct |
23 |
Correct |
6 ms |
460 KB |
Output is correct |
24 |
Correct |
21 ms |
716 KB |
Output is correct |
25 |
Correct |
23 ms |
580 KB |
Output is correct |
26 |
Correct |
3 ms |
1096 KB |
Output is correct |
27 |
Correct |
12 ms |
8748 KB |
Output is correct |
28 |
Correct |
24 ms |
832 KB |
Output is correct |
29 |
Correct |
4 ms |
972 KB |
Output is correct |
30 |
Correct |
1 ms |
332 KB |
Output is correct |
31 |
Correct |
3 ms |
588 KB |
Output is correct |
32 |
Correct |
2 ms |
460 KB |
Output is correct |
33 |
Correct |
24 ms |
2920 KB |
Output is correct |
34 |
Correct |
25 ms |
2888 KB |
Output is correct |
35 |
Execution timed out |
1088 ms |
11640 KB |
Time limit exceeded |
36 |
Halted |
0 ms |
0 KB |
- |