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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define ll long long
  4. #define endl "\n"
  5. vector<ll> primes;
  6. vector<ll> is_prime(1000001);
  7. ll N=0;
  8. ll ans2;
  9. ll x;
  10. void solve()
  11. {
  12.     ll k;
  13.     x = 0;
  14.     k = 999983;
  15.     ll ans=0, mn=1e9;
  16.     for (int i=0;i<N;i++)
  17.     {
  18.         ans+=k*primes[i];
  19.         if (k%primes[i]==0)
  20.             x=i;
  21.         if (primes[i]==is_prime[k])
  22.             break;
  23.     }
  24.     // for (int i=0;i<N;i++)
  25.     // {
  26.     //     ans+=k*primes[i];
  27.     //     if (!(k%primes[i]))
  28.     //         break;
  29.     // }
  30.     x+=ans;
  31.     ans2 += ans % 10000;
  32. }
  33. int main()
  34. {
  35.     ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
  36.     ll t;
  37.     int n=1e6;
  38.     for (int i=0;i<n;i++)
  39.         is_prime[i]=i;
  40.     is_prime[0] = is_prime[1] = -1;
  41.     for (ll i = 2; i * i <= n; i++) {
  42.         if (is_prime[i]) {
  43.             for (ll j = i * i; j <= n; j += i)
  44.                 is_prime[j] = min(i, is_prime[j]);
  45.         }
  46.     }
  47.     for (int i=2;i<=n;i++)
  48.         if (is_prime[i]==i)
  49.             primes.push_back(i),N++;
  50.     t = 10000;
  51.     while(t--)
  52.     {
  53.         solve();
  54.     }
  55.     cout << ans2 << '\n';
  56.     return 0;
  57. }
Time limit exceeded #stdin #stdout 5s 11924KB
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https://ideone.com/ZYSlO2
language:
C++14 (gcc 8.3)
created:
151 days ago
visibility:
secret

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