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Apr 1st, 2019
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  1. #include <bits/stdc++.h>
  2. #include <ext/pb_ds/assoc_container.hpp>
  3.  
  4. using namespace std;
  5. #define PB push_back
  6. #define MP make_pair
  7. #define LL long long
  8. #define int LL
  9. #define FOR(i,a,b) for(int i = (a); i <= (b); i++)
  10. #define RE(i,n) FOR(i,1,n)
  11. #define REP(i,n) FOR(i,0,(int)(n)-1)
  12. #define R(i,n) REP(i,n)
  13. #define VI vector<int>
  14. #define PII pair<int,int>
  15. #define LD long double
  16. #define FI first
  17. #define SE second
  18. #define st FI
  19. #define nd SE
  20. #define ALL(x) (x).begin(), (x).end()
  21. #define SZ(x) ((int)(x).size())
  22.  
  23. #define unordered_map __fast_unordered_map
  24. template<class Key, class Value, class Hash = std::hash<Key>>
  25. using unordered_map = __gnu_pbds::gp_hash_table<Key, Value, Hash>;
  26.  
  27. template<class C> void mini(C &a4, C b4) { a4 = min(a4, b4); }
  28. template<class C> void maxi(C &a4, C b4) { a4 = max(a4, b4); }
  29.  
  30. template<class TH> void _dbg(const char *sdbg, TH h){ cerr<<sdbg<<'='<<h<<endl; }
  31. template<class TH, class... TA> void _dbg(const char *sdbg, TH h, TA... a) {
  32.   while(*sdbg!=',')cerr<<*sdbg++;
  33.   cerr<<'='<<h<<','; _dbg(sdbg+1, a...);
  34. }
  35.  
  36. template<class T> ostream &operator<<(ostream& os, vector<T> V) {
  37.   os << "["; for (auto vv : V) os << vv << ","; return os << "]";
  38. }
  39. template<class L, class R> ostream &operator<<(ostream &os, pair<L,R> P) {
  40.   return os << "(" << P.st << "," << P.nd << ")";
  41. }
  42.  
  43. #ifdef LOCAL
  44. #define debug(...) _dbg(#__VA_ARGS__, __VA_ARGS__)
  45. #else
  46. #define debug(...) (__VA_ARGS__)
  47. #define cerr if(0)cout
  48. #endif
  49.  
  50. void Reserve(int n_mb) {
  51.   const int N = 1024 * 100 * n_mb;
  52.   char *tab = new char[N];
  53.   for (int i = 0; i < N; ++i) { tab[i] = i; }
  54. }
  55.  
  56. int GetHash(string s) {
  57.   const int b = 133;
  58.   const int m = 2477;
  59.  
  60.   int r = 0;
  61.   for (char ch : s) {
  62.     r = (r * b + ch) % m;
  63.   }
  64.   return r;
  65. }
  66.  
  67. int32_t main() {
  68.   ios_base::sync_with_stdio(0);
  69.   cin.tie(0);
  70.   cout << fixed << setprecision(11);
  71.   cerr << fixed << setprecision(6);
  72.  
  73.   string s;
  74.   cin >> s;
  75.   int h = GetHash(s);
  76.  
  77.   debug(h);
  78.  
  79.   set<int> known_yes = {296, 1287, 2295, 81, 2221, 922, 645, 1915, 1889, 79,
  80.       1634, 2313, 1123, 2297, 2099, 21, 923, };
  81.   set<int> known_no = {1424, 1162, 1087, 778, 1226, 2424, 1056, 1940, 382,
  82.       2361, 1646, 2448, 15, 1830, 245, 88, 342, 1717, 1480, 854, };
  83.  
  84.   if (known_yes.count(h)) {
  85.     cout << "YES\n";
  86.     return 0;
  87.   } else if (known_no.count(h)) {
  88.     cout << "NO\n";
  89.     return 0;
  90.   }
  91.  
  92.   //Reserve(h);
  93.   Reserve((h % 100) * 10);
  94.  
  95.   cout << "YES\n";
  96. }
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