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  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4. int main()
  5. {
  6.     string cell;
  7.     cin>>cell;
  8.     if((cell.size()==5) &&
  9.         (((cell[0]>='A' && cell[0]<='H') || (cell[0]>='a' && cell[0]<='h')) && //x1
  10.         (cell[1]>='1' && cell[1]<='8')) &&                                     //y1
  11.         (cell[2]=='-') &&                                                      //-
  12.         (((cell[3]>='A' && cell[3]<='H') || (cell[3]>='a' && cell[3]<='h')) &&  //x2
  13.         (cell[4]>='1' && cell[4]<='8')))                                        //y2
  14.         {
  15.             int x1 = tolower(cell[0]) - 'a' + 1;
  16.             int y1 = cell[1] - '0';
  17.             int x2 = tolower(cell[3]) - 'a' + 1;
  18.             int y2 = cell[4] - '0';
  19.             if(x1==x2 && y1==y2)
  20.                 cout<<"ERROR";
  21.            else if( ((abs(x1 - x2)==1) && (abs(y1 - y2)==2)) ||
  22.                ((abs(x1 - x2)==2) && (abs(y1 - y2)==1)) )
  23.                 cout<<"YES";
  24.             else
  25.                 cout<<"NO";
  26.         }
  27.     else
  28.         cout<<"ERROR";
  29.     return 0;
  30. }
Success #stdin #stdout 0.01s 5320KB
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Standard input is empty
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ERROR
https://ideone.com/ErPjDR
language:
C++ (gcc 8.3)
created:
15 days ago
visibility:
public

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