fork download 
  1. #include <iostream>
  2. int main() {
  3.     unsigned int a=1;
  4.     unsigned int b=2;
  5.     unsigned long sum=2;
  6.     const unsigned int max=4000000;
  7.     do {
  8.         a += b;
  9.         if (a>max) break;
  10.         b += a;
  11.         a += b;
  12.         sum += a;
  13.         b += a;
  14.         a += b;
  15.         b += a;
  16.         sum += b;
  17.     } while (1);
  18.     std::cout << sum;
  19.     return 0;
  20. }
Success #stdin #stdout 0.01s 2724KB
comments (?)
stdin 
Standard input is empty
stdout 
4613732
https://ideone.com/D6Fqn
language:
C++ (gcc 8.3)
created:
12 years 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!