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ShafiulAzim

Untitled

Mar 13th, 2020
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  1. #include<iostream>
  2. using namespace std;
  3. int main()
  4. {
  5. int n,i,t,j,k,c;
  6. cin>>t;
  7. while(t--)
  8. {
  9. cin>>n;
  10. c=0;
  11. int arr[n];
  12. for(i=0; i<n; i++)
  13. {
  14. cin>>arr[i];
  15. }
  16. for(i=0; i<n-1; i++)
  17. {
  18. k=arr[i]+arr[i+1];
  19. for(j=0; j<n; j++)
  20. {
  21. if(arr[j]==k)
  22. {
  23. c=1;
  24. break;
  25. }
  26. else
  27. c=0;
  28.  
  29. }
  30. }
  31. if(c==1)
  32. cout<<"yes"<<endl;
  33. else
  34. cout<<"no"<<endl;
  35.  
  36. }
  37. return 0;
  38. }
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