Given two cells on the standard chess board, determine whether they have the same color or not.

Example

• For cell1 = "A1" and cell2 = "C3", the output should be

  solution(cell1, cell2) = true.

  

• For cell1 = "A1" and cell2 = "H3", the output should be

  solution(cell1, cell2) = false.

  

Input/Output

• [execution time limit] 3 seconds (java)

• [memory limit] 1 GB

• [input] string cell1

  Guaranteed constraints:

  cell1.length = 2,

  'A' ≤ cell1[0] ≤ 'H',

  1 ≤ cell1[1] ≤ 8.

• [input] string cell2

  Guaranteed constraints:

  cell2.length = 2,

  'A' ≤ cell2[0] ≤ 'H',

  1 ≤ cell2[1] ≤ 8.

• [output] boolean

  true if both cells have the same color, false otherwise.

풀이

boolean solution(String cell1, String cell2) {
    char c1 = cell1.charAt(0);
    char c2 = cell2.charAt(0);
    
    int n1 = Integer.parseInt(cell1.substring(1));
    int n2 = Integer.parseInt(cell2.substring(1));
    
    int result = Math.abs(c1 - c2) + Math.abs(n1 - n2);
    
    if (result % 2 > 0) return false;
    else return true;
}