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  1. //Binary Search » Step 2 » E.Equation
  2. #include<bits/stdc++.h>
  3. #define int long long
  4. using namespace std;
  5. signed main(){
  6. 	ios::sync_with_stdio(false); cin.tie(nullptr);
  7. 	double n; cin>>n;
  8. 	double l=0,r=n,mid;
  9. 	while(r-l>0.0000001){
  10. 		mid=(l+r)/2.0;
  11. 		if(mid*mid+sqrt(mid)>n) r=mid;
  12. 		else l=mid;
  13. 	}
  14. 	cout<<fixed<<setprecision(12)<<l;
  15. }
Success #stdin #stdout 0s 5280KB
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stdin
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Standard input is empty
stdout
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0.000000000000
https://ideone.com/N1g8b7
language:
C++ (gcc 8.3)
created:
5 days ago
visibility:
public

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