Create xor-queries-of-a-subarray.py

Author: kamyu104

Python/xor-queries-of-a-subarray.py

@@ -0,0 +1,13 @@
+# Time:  O(n)
+# Space: O(1)
+
+class Solution(object):
+    def xorQueries(self, arr, queries):
+        """
+        :type arr: List[int]
+        :type queries: List[List[int]]
+        :rtype: List[int]
+        """
+        for i in xrange(1, len(arr)):
+            arr[i] ^= arr[i-1]
+        return [arr[right] ^ arr[left-1] if left else arr[right] for left, right in queries]