Saleh127

UVA 10042

Jul 19th, 2020
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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define test int t; cin>>t; while (t--)
  4. #define ll long long int
  5. #define maX 1000008
  6. bool marked[maX];
  7. vector<ll>p;
  8. void sieve()
  9. {
  10. marked[0]=1;
  11. marked[1]=1;
  12. p.push_back(2);
  13. for(ll i=4; i<=maX; i+=2)
  14. {
  15. marked[i]=1;
  16. }
  17. for(ll i=3; i<=maX; i+=2)
  18. {
  19. if(marked[i]==0)
  20. {
  21. p.push_back(i);
  22. for(ll j=i*i; j<=maX; j+=i+i)
  23. {
  24. marked[j]=1;
  25. }
  26. }
  27. }
  28. }
  29. ll sumdigit(ll x)
  30. {
  31. ll sum=0;
  32. while(x)
  33. {
  34. sum+=(x%10);
  35. x/=10;
  36. }
  37. return sum;
  38. }
  39. int main()
  40. {
  41. sieve();
  42. test
  43. {
  44. ll a,c,d,e,f,i,j,k,l;
  45. cin>>a;
  46. while(1)
  47. {
  48. a++;
  49. d=a;
  50. ll sum1=0;
  51. ll sum2=sumdigit(a);
  52. f=0;
  53. for(i=0;i<p.size() && p[i]*p[i]<=d; i++)
  54. {
  55. if(d%p[i]==0)
  56. {
  57. while(d%p[i]==0)
  58. {
  59. sum1+=sumdigit(p[i]);
  60. d/=p[i];
  61. f++;
  62. }
  63. }
  64. }
  65. if(d>1)
  66. {
  67. sum1+=sumdigit(d);
  68. f++;
  69. }
  70. if(sum1==sum2 && f>1)
  71. {
  72. cout<<a<<endl;
  73. break;
  74. }
  75. }
  76. }
  77. return 0;
  78. }
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