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- #include <iostream>
- using namespace std;
- int a[100], x;
- int nrap(int st, int dr)
- {
- int m;
- if(st==dr)
- return x==a[st];
- else
- {
- m=(st+dr)/2;
- return nrap(st, m)+ nrap(m+1, dr);
- }
- }
- int main()
- {
- int i, n,x;
- cin>>n;
- cin>>x;
- for(i=1; i<=n; i++)
- cin>>a[i];
- cout<<nrap(1, n);
- return 0;
- }
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