#include <bits/stdc++.h>
#define N 50005
#define M 1000003
#define INF 2000000009
#define LINF 9000000000000000009
#define fi first
#define se second
#define eb emplace_back
#define lb lower_bound
#define all(x) (x).begin(),(x).end()
#define uniqv(x) (x).erase(unique(all(x)),(x).end())
#define fastio ios::sync_with_stdio(false);cin.tie(0)
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef pair<ll,pll> tri;
int n,m,k,q,s[N],cnt;
vector<pll> net[N];
vector<pll> dist[N];
set<int> vis[N];
void dijkstra(){
priority_queue<tri,vector<tri>,greater<tri> > Q;
for(int i=0;i<k;i++){
Q.push({0,{s[i],s[i]}});
}
while(!Q.empty()){
tri p=Q.top();
Q.pop();
int now=p.se.fi,from=p.se.se;
ll cost=p.fi;
if(vis[now].size()>cnt||vis[now].find(from)!=vis[now].end()) continue;
vis[now].insert(from);
dist[now].eb(cost,from);
for(auto i:net[now]){
int next=i.fi;
ll nextcost=cost+i.se;
Q.push({nextcost,{next,from}});
}
}
return;
}
int main(){
fastio;
cin>>n>>m>>k>>q;
for(int i=0;i<k;i++){
cin>>s[i];
}
cnt=10;
for(int i=0,t1,t2;i<m;i++){
ll val;
cin>>t1>>t2>>val;
net[t1].eb(t2,val);
net[t2].eb(t1,val);
}
dijkstra();
while(q--){
int st,num;
cin>>st>>num;
vector<bool> chk(n+1,false);
for(int i=0,t;i<num;i++){
cin>>t;
chk[t]=true;
}
ll ans1=LINF,ans2=LINF;
for(int i=0;i<dist[st].size();i++){
if(chk[dist[st][i].se]) continue;
if(dist[st][i].fi<ans2||(dist[st][i].fi==ans2&&dist[st][i].se<ans1)){
ans1=dist[st][i].fi;
ans2=dist[st][i].se;
}
}
cout<<ans2<<" "<<ans1<<"\n";
}
return 0;
}
Compilation message
mart.cpp: In function 'void dijkstra()':
mart.cpp:34:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(vis[now].size()>cnt||vis[now].find(from)!=vis[now].end()) continue;
~~~~~~~~~~~~~~~^~~~
mart.cpp: In function 'int main()':
mart.cpp:68:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0;i<dist[st].size();i++){
~^~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
5112 KB |
Output is correct |
| 2 |
Correct |
6 ms |
4984 KB |
Output is correct |
| 3 |
Correct |
6 ms |
5112 KB |
Output is correct |
| 4 |
Correct |
6 ms |
4988 KB |
Output is correct |
| 5 |
Correct |
7 ms |
5112 KB |
Output is correct |
| 6 |
Correct |
7 ms |
5112 KB |
Output is correct |
| 7 |
Correct |
10 ms |
5496 KB |
Output is correct |
| 8 |
Correct |
10 ms |
5496 KB |
Output is correct |
| 9 |
Incorrect |
102 ms |
12004 KB |
Output isn't correct |
| 10 |
Halted |
0 ms |
0 KB |
- |
