Advertisement
Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- #include <fstream>
- #define inf 1000000
- using namespace std;
- ifstream fin("parc.in");
- ofstream fout("parc.out");
- int n,m,viz[101],c,a[101][101],porti[101],p,d[101];
- void citire()
- {
- fin>>n>>m>>c;
- for(int i=1;i<=n;i++)
- for(int j=1;j<i;j++)
- a[i][j]=a[j][i]=inf;
- int x,y,cost;
- for(int i=1;i<=m;i++)
- {
- fin>>x>>y>>cost;
- a[x][y]=a[y][x]=cost;
- }
- fin>>p;
- for(int i=1;i<=p;i++)
- fin>>porti[i];
- }
- void init()
- {
- for(int i=1;i<=n;i++)
- d[i]=a[c][i];
- viz[c]=1;
- }
- void dijkstra()
- {
- int minim,pozmin;
- for(int k=1;k<n;k++)
- {
- minim=inf,pozmin=0;
- for(int i=1;i<=n;i++)
- if(d[i]<minim&&!viz[i])
- {
- minim=d[i];
- pozmin=i;
- }
- if(pozmin!=0)
- {
- viz[pozmin]=1;
- for(int i=1;i<=n;i++)
- if(d[i]>d[pozmin]+a[i][pozmin]&&viz[i]==0)
- d[i]=a[i][pozmin]+d[pozmin];
- }
- }
- }
- int main()
- {
- citire();
- init();
- dijkstra();
- int mn,pmn;
- mn=inf,pmn=0;
- for(int i=1;i<=p;i++)
- {
- if(d[porti[i]]<mn)
- {
- mn=d[porti[i]];
- pmn=porti[i];
- }
- }
- fout<<pmn;
- return 0;
- }
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement