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- #include <iostream>
- #include <fstream>
- #include <cstring>
- using namespace std;
- ifstream f("inaltime.in");
- ofstream g("inaltime.out");
- int p,i,n,v[1001],q,maxx;
- int main()
- {
- f>>n;
- for(i=1; i<=n; i++)
- {
- f>>p;
- v[i]=p;
- }
- for(i=1; i<=n; i++)
- {
- q=1;
- p=i;
- while(v[p]!=0)
- {
- q++;
- p=v[p];
- }
- if(q>maxx)
- maxx=q;
- }
- g<<maxx;
- }
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