recurs
unknown
c_cpp
3 years ago
233 B
12
Indexable
#include <bits/stdc++.h> using namespace std; long double f(long double n) { if(n==***) return ***(2.0); else return sqrt(2.0+f(***)); } int main() { long long n; cin>>n; cout<<fixed<<setprecision(9)<<f(n); }
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