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  1. #include <iostream>
  2. #include <vector>
  3.  
  4.  
  5. using namespace std;
  6.  
  7. vector<int>lina;
  8.  
  9. int z, n, ruch, x;
  10.  
  11. int main()
  12. {
  13.     cin>>z;
  14.     while(z--)
  15.     {
  16.         lina.clear();
  17.         cin>>n;
  18.         for(int i=0; i<n; ++i)
  19.         {
  20.             cin>>x;
  21.             lina.push_back(x);
  22.         }
  23.         ruch=1;
  24.         if(n==1)
  25.         {
  26.             cout<<"1"<<endl;
  27.             continue;
  28.         }
  29.         for(int i=0; i<n-2; ++i)
  30.         {
  31.             if(lina[i]==1)
  32.             {
  33.                 if(ruch==1)
  34.                     ruch=2;
  35.                 else
  36.                     ruch=1;
  37.                 continue;
  38.             }
  39.             if(lina[i+1]==1)
  40.             {
  41.                 if(ruch==1)
  42.                     ruch=2;
  43.                 else
  44.                     ruch=1;
  45.                 continue;
  46.             }
  47.  
  48.         }
  49.         if(lina[n-2]==1)
  50.         {
  51.             if(ruch==1)
  52.             {
  53.                 cout<<"2"<<endl;
  54.             }
  55.             else
  56.                 cout<<"1"<<endl;
  57.         }
  58.         else
  59.             cout<<ruch<<endl;
  60.  
  61.     }
  62.     return 0;
  63. }
  64.  
Success #stdin #stdout 0s 3460KB
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https://ideone.com/9edjDb
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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