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Jun 22nd, 2019
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  1. #include <iostream>
  2. #include <string>
  3. #define lli long long int
  4. using namespace std;
  5.  
  6. void compute(lli n, lli& ans, bool flag = false) {
  7. if (n == 0) {
  8. ans += 1;
  9. return;
  10. }
  11.  
  12. compute(n - 1, ans, false);
  13. if (!flag) {
  14. compute(n - 1, ans, true);
  15. }
  16. }
  17.  
  18. int main()
  19. {
  20. lli t, n, ans, i=1;
  21. cin>>t;
  22. while(i<=t)
  23. {
  24. ans=0;
  25. cin >> n;
  26. compute(n, ans);
  27. cout << "#" << i << " : " << ans << endl;
  28. i++;
  29. }
  30. return 0;
  31. }
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