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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. bool snt(long long n)
  4. {
  5.     if (n < 2)
  6.         return false;
  7.     for (long long i = 2; i * i <= n; i++)
  8.     {
  9.         if (n % i == 0)
  10.             return false;
  11.     }
  12.     return true;
  13. }
  14. bool ok(long long n)
  15. {
  16.     if (snt(n) == false)
  17.         return false;
  18.     long long t = n;
  19.     vector<long long> a = {};
  20.     while (t > 0)
  21.     {
  22.         a.push_back(t % 10);
  23.         t /= 10;
  24.     }
  25.     long long pt = 0;
  26.     do{
  27.         pt = 0;
  28.         for (long long i:a)
  29.             pt = pt * 10 + i;
  30.         if (snt(pt))
  31.             return true;
  32.     }while(next_permutation(a.begin(), a.end()));
  33.     return false;
  34. }
  35. int main()
  36. {
  37.     ios_base::sync_with_stdio(0);
  38.     cin.tie(0);
  39.     cout.tie(0);
  40.     long long n;
  41.     cin >> n;
  42.     vector<long long> FIB = {};
  43.     long long fib1 = 5;
  44.     long long fib2 = 8;
  45.     long long pt = 13;
  46.     while (pt <= n)
  47.     {
  48.         if (ok(pt))
  49.             FIB.push_back(pt);
  50.         fib1 = fib2;
  51.         fib2 = pt;
  52.         pt = fib1 + fib2;
  53.     }
  54.     for (long long i:FIB)
  55.         cout << i << '\n';
  56. }
Success #stdin #stdout 0.01s 5316KB
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13
1597
28657
514229
433494437
2971215073
https://ideone.com/1pFAqj
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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