Queen move. Chess queen moves horizontally, vertically or diagonally to any number of cells. Given two different cells of the chessboard, determine whether a queen can go from the first cell to the second in one move.
The program receives the input of four numbers from 1 to 8, each specifying the column and row number, first two – for the first cell, and then the last two – for the second cell. The program should output YES if a queen can go from the first cell to the second in one move, or NO otherwise.
|
Input |
Output |
|
1 |
YES |
|
1 |
NO |
|
5 |
NO |