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  1. #include <iostream>
  2. using namespace std;
  3. int main()
  4. {
  5.     long a,b,test,reszta;
  6.     cin>>test;
  7.     for(int i=1;i<=test;i++)
  8.     {
  9.         cin>>a>>b;
  10.         if(b==0)
  11.             cout<<"1";
  12.         reszta=a%10;
  13.         if(reszta==0)
  14.             cout<<"0";
  15.         if(reszta==1)
  16.             cout<<"1";
  17.         if(reszta==5)
  18.             cout<<"5";
  19.         if(reszta==6)
  20.             cout<<"6";
  21.         if(reszta==4)
  22.         {
  23.             if(b%2==0)
  24.                 cout<<"6"<<endl;
  25.             else
  26.                 cout<<"4"<<endl;
  27.         }
  28.         if(reszta==2)
  29.         {
  30.             if(b%4==0)
  31.                 cout<<"6"<<endl;
  32.             if(b%4==1)
  33.                 cout<<"2"<<endl;
  34.             if(b%4==2)
  35.                 cout<<"4"<<endl;
  36.             if(b%4==3)
  37.                 cout<<"8"<<endl;
  38.  
  39.         }
  40.         if(reszta==3)
  41.         {
  42.             if(b%4==0)
  43.                 cout<<"1"<<endl;
  44.             if(b%4==1)
  45.                 cout<<"3"<<endl;
  46.             if(b%4==2)
  47.                 cout<<"9"<<endl;
  48.             if(b%4==3)
  49.                 cout<<"7"<<endl;
  50.  
  51.         }
  52.         if(reszta==7)
  53.         {
  54.             if(b%4==0)
  55.                 cout<<"1"<<endl;
  56.             if(b%4==1)
  57.                 cout<<"7"<<endl;
  58.             if(b%4==2)
  59.                 cout<<"9"<<endl;
  60.             if(b%4==3)
  61.                 cout<<"3"<<endl;
  62.         }
  63.         if(reszta==8)
  64.         {
  65.             if(b%4==0)
  66.                 cout<<"6"<<endl;
  67.             if(b%4==1)
  68.                 cout<<"8"<<endl;
  69.             if(b%4==2)
  70.                 cout<<"4"<<endl;
  71.             if(b%4==3)
  72.                 cout<<"2"<<endl;
  73.         }
  74.         if(reszta==9)
  75.         {
  76.             if(b%2==0)
  77.                 cout<<"1"<<endl;
  78.             else
  79.                 cout<<"9"<<endl;
  80.         }
  81.     }
  82. }
Time limit exceeded #stdin #stdout 5s 3460KB
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https://ideone.com/yVPvff
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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