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Saleh127

lo 1010

Aug 8th, 2020
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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. int main()
  4. {
  5. int a,b,c,d,e,f,i,j,k,l;
  6. cin>>f;
  7. for(l=1; l<=f; l++)
  8. {
  9. d=0;
  10. c=0;
  11. cin>>a>>b;
  12. cout<<"Case "<<l<<": ";
  13. if(a==1 || b==1)
  14. {
  15. d=a*b;
  16. }
  17. else if(a==2 || b==2)
  18. {
  19. c=max(a,b);
  20. if(c%4==1 || c%4==3)
  21. {
  22. d=c+1;
  23. }
  24. else if(c%4==2)
  25. {
  26. d=c+2;
  27. }
  28. else
  29. {
  30. d=c;
  31. }
  32. }
  33. else
  34. {
  35. if(a*b%2==0)
  36. {
  37. d=(a*b)/2;
  38. }
  39. else
  40. {
  41. d=1+(a*b)/2;
  42. }
  43. }
  44. cout<<d<<endl;
  45. }
  46. return 0;
  47. }
  48.  
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