leetcode-3274 Check if Two Chessboard Squares Have the Same Color

 in this problem there give two strings let take two strings names as 's' and 't' there is chess board the string s is a one box number of the chess board and the t is anther box number in same chess board the color of both string s&t is same we need to return true other wise return false

input: s="a1" and t="c3"

output: true

explanation: a1(black color)  c3(black color)

input 2: s="a1" and t="h3"

output: false

explanation: a1(black color)  h3(while color)

in this we 

class Solution {

public:

bool checkTwoChessboards(string s,string t) {

        int n=s.size();

        int m=s[1]-'0';

        int k=t[1]-'0';

        int dif=t[0]-s[0]-1;

        if(dif%2!=0){

           if(k%2!=0&&m%2!=0){

            return true;

           }

           if(k%2==0&&m%2==0){

            return true;

           }

        }

        else{

         if(dif%2==0){

            if(m%2!=0&&k%2==0){

                return true;

            }

            if(m%2==0&&k%2!=0){

                return true;

            }

         }

        }

        return false;

    }

};