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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. int a=2;
  6. int n;
  7. cin>>n;
  8. while(a<=n){
  9. cout<<a<<endl;
  10. a=a*2;
  11. }
  12. return 0;
  13. }
Success #stdin #stdout 0.01s 5320KB
stdin
10
stdout
2
4
8