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Mar 31st, 2015
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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. long long int is_prime(long long int n) {
  5. int i;
  6. if(n == 1) return 0;
  7. else if(n == 2) return 1;
  8. else if(n % 2 == 0) return 0;
  9. else {
  10. for(i = 3; i <= sqrt(n); i = i + 2) {
  11. if(n % i == 0) return 0;
  12.  
  13. }
  14.  
  15.  
  16. }
  17. return 1;
  18.  
  19.  
  20.  
  21.  
  22. }
  23. main()
  24. {
  25. long long int p,q,i,T,t;
  26. scanf("%lld",&T);
  27. for(t = 1; t <= T; t++) {
  28. scanf("%lld %lld",&p,&q);
  29. for(i = p; i <= q; i++) {
  30. if(1 == is_prime(i))
  31. printf("%lld\n",i);
  32. }
  33. printf("\n");
  34. }
  35. return 0;
  36. }
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