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Saleh127

Untitled

Apr 15th, 2020
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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. int main()
  4. {
  5. long long int a,b,c,d,e,f,i,j,k,t;
  6. cin>>t;
  7. while(t--)
  8. {
  9. d=0;
  10. cin>>a>>b;
  11. for(i=a; i<=b; i++)
  12. {
  13. c=i%10;
  14. if(c==2 || c==3 || c==9)
  15. {
  16. d++;
  17. }
  18. }
  19. cout<<d<<endl;
  20. }
  21. return 0;
  22. }
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