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  1. #pragma GCC optimize("Ofast,unroll-loops")
  2. #pragma GCC optimize("O3")
  3.  
  4. #include <bits/stdc++.h>
  5.  
  6. #define ll long long
  7. #define ld long double
  8. #define i128 __int128
  9.  
  10. #define all(x) x.begin(), x.end()
  11. #define sz(x) (ll)x.size()
  12.  
  13. #define pb push_back
  14. #define ppb pop_back
  15. #define gcd __gcd
  16. #define sq(n) (ll)sqrt(n)
  17. #define cb(n) (ll)cbrt(n)
  18. #define lcm(a, b) (a / gcd(a, b) * b)
  19. #define mem(a, x) memset(a, x, sizeof(a))
  20.  
  21. #define PhuocThien \
  22. ios_base::sync_with_stdio(false); \
  23. cin.tie(nullptr);
  24.  
  25. #define file(name)\
  26. freopen(name ".inp", "r", stdin);\
  27. freopen(name ".out", "w", stdout);
  28.  
  29. using namespace std;
  30.  
  31. const ll INF = 1e18;
  32. const ll NINF = -1e18;
  33. const ll mod = 1e9 + 7;
  34. const ll maxn = 1e6;
  35.  
  36. ll tcs(ll n) {
  37.    ll sum = 0;
  38.    do {
  39.      sum += n % 10;
  40.      n /= 10;
  41.    } while(n);
  42.    return sum;
  43. }
  44.  
  45. bool scp(ll n) {
  46.    return sq(n) * sq(n) == n;
  47. }
  48.  
  49. bool snt(ll n) {
  50.    if(n < 2) return 0;
  51.    if(n == 2 || n == 3) return 1;
  52.    if(n % 2 == 0 || n % 3 == 0) return 0;
  53.    for(ll i = 5; i * i <= n; i += 6)
  54.      if(n % i == 0 || n % (i + 2) == 0) return 0;
  55.    return 1;
  56. }
  57. int main() {
  58.     PhuocThien
  59.     ll n;
  60.     cin >> n;
  61.     if(scp(n) && snt(tcs(n))) cout << "YES";
  62.     else cout << "NO";
  63. }
  64. // :3 cute
  65.  
Success #stdin #stdout 0.01s 5312KB
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Standard input is empty
stdout
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NO
https://ideone.com/VygPVI
language:
C++14 (clang 8.0)
created:
9 hours ago
visibility:
public

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