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Jan 23rd, 2020
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  1. /*
  2. _____ _ _ _ _
  3. |_ _| |__ ___ / \ _ __ ___| |__ _ _| |
  4. | | | '_ \ / _ \ / _ \ | '_ \/ __| '_ \| | | | |
  5. | | | | | | __// ___ \| | | \__ \ | | | |_| | |
  6. |_| |_| |_|\___/_/ \_\_| |_|___/_| |_|\__,_|_|
  7.  
  8. */
  9. #include<bits/stdc++.h>
  10. #include <ext/pb_ds/assoc_container.hpp>
  11. #include <ext/pb_ds/tree_policy.hpp>
  12. #define ll long long
  13. #define pb push_back
  14. #define ppb pop_back
  15. #define endl '\n'
  16. #define mii map<ll,ll>
  17. #define msi map<string,ll>
  18. #define mis map<ll, string>
  19. #define rep(i,a,b) for(ll i=a;i<b;i++)
  20. #define repr(i,a,b) for(ll i=b-1;i>=a;i--)
  21. #define trav(a, x) for(auto& a : x)
  22. #define pii pair<ll,ll>
  23. #define vi vector<ll>
  24. #define vii vector<pair<ll, ll>>
  25. #define vs vector<string>
  26. #define all(a) (a).begin(),(a).end()
  27. #define F first
  28. #define S second
  29. #define sz(x) (ll)x.size()
  30. #define hell 1000000007
  31. #define lbnd lower_bound
  32. #define ubnd upper_bound
  33. #define max(a,b) (a>b?a:b)
  34. #define min(a,b) (a<b?a:b)
  35.  
  36. /* For Debugging */
  37. #define DEBUG cerr<<"/n>>>I'm Here<<</n"<<endl;
  38. #define display(x) trav(a,x) cout<<a<<" ";cout<<endl;
  39. #define what_is(x) cerr << #x << " is " << x << endl;
  40.  
  41. std::mt19937_64 rng(std::chrono::steady_clock::now().time_since_epoch().count());
  42. #define ordered_set tree<ll, null_type,less<ll>, rb_tree_tag,tree_order_statistics_node_update>
  43. #define TIME cerr << "\nTime elapsed: " << setprecision(5) <<1000.0 * clock() / CLOCKS_PER_SEC << "ms\n";
  44. #define DECIMAL(n) cout << fixed ; cout << setprecision(n);
  45. #define FAST ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
  46. using namespace __gnu_pbds;
  47. using namespace std;
  48. #define PI 3.141592653589793
  49. #define N 5000005
  50. ll dp[N];
  51. ll ans[N];
  52. ll fun(ll n)
  53. {
  54. if(n<N && dp[n]!=-1)
  55. return dp[n];
  56. if(n<N)
  57. {
  58. dp[n]=(n&1?fun(3*n+1)+1:fun(n/2)+1);
  59. return dp[n];
  60. }
  61. else
  62. {
  63. return (n&1?fun(3*n+1)+1:fun(n/2)+1);
  64. }
  65. }
  66. void solve()
  67. {
  68. ll n;
  69. cin>>n;
  70. cout<<ans[n]<<endl;
  71. return;
  72. }
  73. int main()
  74. {
  75. FAST
  76. rep(i,1,N)
  77. dp[i]=-1;
  78.  
  79. dp[0]=0;
  80. dp[1]=0;
  81. // dp[2]=1;
  82. rep(i,2,N)
  83. {
  84. fun(i);
  85. }
  86.  
  87. // cout<<dp[18]<<" "<<dp[19]<<endl;
  88.  
  89. ans[1]=1;
  90. rep(i,2,N)
  91. {
  92. if(dp[i]>=dp[ans[i-1]])
  93. ans[i]=i;
  94. else
  95. ans[i]=ans[i-1];
  96. }
  97.  
  98. int TESTS=1;
  99. cin>>TESTS;
  100. while(TESTS--)
  101. {
  102. solve();
  103. }
  104. TIME
  105. return 0;
  106. }
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