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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. ll tcs(ll n) {
  36.    ll sum = 0;
  37.    do {
  38.      sum += n % 10;
  39.      n /= 10;
  40.    } while(n);
  41.    return sum;
  42. }
  43. int main() {
  44.     PhuocThien
  45.     file("NICETIFOOD")
  46.     ll n;
  47.     cin >> n;
  48.     if(tcs(n) % 10 == 9) cout << "Yes";
  49.     else cout << "No";
  50. }
  51. // :3 cute
  52.  
Success #stdin #stdout 0s 5320KB
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https://ideone.com/bhKXTS
language:
C++14 (clang 8.0)
created:
9 hours ago
visibility:
public

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