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- #include <iostream>
- #include <fstream>
- using namespace std;
- ifstream f("subarbore2.in");
- ofstream g("subarbore2.out");
- int t[101],c[101],viz[101],sum,n,m,k;
- void citire()
- {
- f>>n>>k;
- for(int i=1;i<=n;i++)
- f>>t[i];
- for(int i=1;i<=n;i++)
- f>>c[i];
- }
- void DFS(int x)
- {
- viz[x]=1;
- for(int i=1;i<=n;i++)
- if(t[i]==x and viz[i]==0)
- DFS(i);
- }
- int main()
- {
- citire();
- DFS(k);
- for(int i=1;i<=n;i++)
- if(viz[i])
- sum+=c[i];
- g<<sum;
- return 0;
- }
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