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  1. #include<bits/stdc++.h>
  2. #define int long long
  3. using namespace std;
  4. int32_t main()
  5. {
  6.     int t=1;
  7. //   cin>>t;
  8.     while(t--)
  9.     {
  10.         int x,y;
  11.         cin>>x>>y;
  12.         for(int i=1; i<=1000; i++)
  13.         {
  14.             if((i*x)%10==0)
  15.             {
  16.                 cout<<i;
  17.                 break;
  18.             }
  19.             if((i*x)%10==y)
  20.             {
  21.                 cout<<i;
  22.                 break;
  23.             }
  24.         }
  25.         return 0;
  26.     }
  27. }
Success #stdin #stdout 0s 5312KB
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https://ideone.com/DDOPlK
language:
C++ (gcc 8.3)
created:
8 hours ago
visibility:
public

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