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Boule

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Jan 19th, 2017
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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main()
  5. {
  6. long long v[10000]={0},i,n,x,st=0,dr=0,mij=0;
  7. cin>>n;
  8. for(i=1; i<=n; i++)
  9. {
  10. cin>>x;
  11. if(x>mij)
  12. mij=x;
  13. v[x]++;
  14. }
  15. for(i=1; i<=mij; i++)
  16. {
  17. if(v[i]%2==1)
  18. st++;
  19. if(v[i]%2==0 && v[i]!=0)
  20. dr++;
  21. }
  22. if(st==0 || st==1)
  23. cout<<"DA";
  24. else
  25. cout<<"NU";
  26. return 0;
  27. }
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