"King move : Chess king moves horizontally, vertically or diagonally to any adjacent cell. Given two different cells of the chessboard, determine whether a king can go from the first cell to the second in one move." - Snackify python coding question

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CODING QUESTION

Chess king moves horizontally, vertically or diagonally to any adjacent cell. Given two different cells of the chessboard, determine whether a king 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 king can go from the first cell to the second in one move, or NO otherwise.

SOLUTION

x1=int(input())
y1=int(input())
x2=int(input())
y2=int(input())

if abs(x1-x2)<2 and abs(y1-y2)<2:
    print('YES')
else:
    print('NO')

 

Input : 

4

4

5

5

Output : YES