2020-08-17

Author: JiayangWu

1486.数组异或操作/1486-数组异或操作.py

@@ -0,0 +1,11 @@
+class Solution(object):
+    def xorOperation(self, n, start):
+        """
+        :type n: int
+        :type start: int
+        :rtype: int
+        """
+        res = start 
+        for i in range(1, n):
+            res ^= start + 2 * i 
+        return res

1528.重新排列字符串/1528-重新排列字符串.py

@@ -0,0 +1,11 @@
+class Solution(object):
+    def restoreString(self, s, indices):
+        """
+        :type s: str
+        :type indices: List[int]
+        :rtype: str
+        """
+        res = ["" for _ in indices]
+        for i in range(len(s)):
+            res[indices[i]] = s[i] 
+        return "".join(ch for ch in res)