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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. long long t, n, a[10000000];
  5.  
  6. int main()
  7. {
  8.     ios_base::sync_with_stdio(false);
  9.     cin.tie(NULL);cout.tie(NULL);
  10.     a[1] = 9;
  11.     for (int i = 2; i <= 4500; i++)
  12.     {
  13.         if (i%2 == 0) a[i] = 10 * a[i/2];
  14.         else a[i] = 10 * a[i/2] + 9;
  15.     }
  16.  
  17.     cin >> t;
  18.     for (int i = 1;i <= t; i++)
  19.     {
  20.         cin >> n;
  21.         for (int i = 1; i <= 4500; i++)
  22.             if (a[i] % n == 0)
  23.             {
  24.                 cout << a[i] << '\n';
  25.                 break;
  26.             }
  27.     }
  28.     return 0;
  29. }
  30.  
Success #stdin #stdout 0s 5304KB
comments (?)
stdin
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3
5
7
1
stdout
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90
9009
9
https://ideone.com/CRZr5z
language:
C++14 (gcc 8.3)
created:
3 hours ago
visibility:
public

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