fork download
copy 
  1. #include <iostream>
  2. #include<cmath>
  3. using namespace std;
  4. int main() {
  5. int n;
  6. cin>>n;
  7. int x[100];
  8. x[0]=0;
  9. x[1]=1;
  10. for(int i=2;i<100;i++)
  11. {
  12.     x[i]=x[i-1]+x[i-2];
  13.     if(n==1)
  14.     {cout<<"0"<<endl;
  15.         break;
  16.     }
  17.    else if(n==x[i])
  18.     {cout<<x[i-1]<<endl;}
  19. }
  20.     return 0;
  21. }
  22.  
Success #stdin #stdout 0.01s 5284KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Standard output is empty
https://ideone.com/8zl30G
language:
C++ (gcc 8.3)
created:
5 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!