389. Find the Difference

Author: SjxSubham

389. Find the Difference

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+So, here also let's say our character are:
+s = abc
+t = cabx
+
+if we take XOR of every character. all the n character of s "abc" is similar to n character of t "cab". So, they will cancel each other. 
+And we left with our answer.
+
+s =   abc
+t =   cbax
+------------
+ans -> x
+
+char findTheDifference(string s, string t) {
+      char c = 0;
+      for(char cs : s) c^=cs;       //Xoring all charecter to extract unique one 
+      for(char ct : t) c^=ct;
+      return c;
+    }