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Sep 18th, 2019
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C++ 0.80 KB | None | 0 0
  1. #include <iostream>
  2. #include <vector>
  3. #include <cstring>
  4. #include <algorithm>
  5. using namespace std;
  6.  
  7. #define pb push_back
  8. #define eb emplace_back
  9.  
  10. const long long N = 123456;
  11. long long wtf[N]; vector<long long> v;
  12.  
  13. void sievve()
  14. {
  15.     memset(wtf, 0, sizeof(wtf));
  16.     for(long long i = 2; i < N; i++)
  17.     {
  18.         if(wtf[i] == 0)
  19.         {
  20.             for(long long j = i; j < N; j = j + i)
  21.             {
  22.                 wtf[j]++;
  23.                 if(wtf[j] == 3)
  24.                 {
  25.                     v.pb(j);
  26.                 }
  27.             }
  28.         }
  29.     }
  30.     sort(v.begin(), v.end());
  31. }
  32.  
  33. int main()
  34. {
  35.     sievve();
  36.     long long t; cin >> t;
  37.     while(t--)
  38.     {
  39.         long long n; cin >> n;
  40.         cout << v[n - 1] << endl;
  41.     }
  42. }
  43.  
  44. /* g++ wtf.cpp -o wtf -std=c++11 */
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