Merge pull request #133 from ashwek/Reverse

0804 & 0657 - Python

Author: yanglbme

solution/0657.Robot Return to Origin/Solution.py

@@ -0,0 +1,20 @@
+class Solution:
+    def judgeCircle(self, moves):
+        """
+        :type moves: str
+        :rtype: bool
+        """
+        
+        x = 0
+        y = 0
+        for each in moves:
+            if( each == 'U' ):
+                y += 1
+            elif( each == 'D' ):
+                y -= 1
+            elif( each == 'R' ):
+                x += 1
+            elif( each == 'L' ):
+                x -= 1
+        
+        return x == y == 0

solution/0804.Unique Morse Code Words/Solution.py

@@ -0,0 +1,14 @@
+class Solution:
+    def uniqueMorseRepresentations(self, words):
+        """
+        :type words: List[str]
+        :rtype: int
+        """
+        
+        morse_code = [".-", "-...", "-.-.", "-..", ".", "..-.", "--.", "....", "..", ".---", "-.-", ".-..", "--", "-.", "---", ".--.", "--.-", ".-.", "...", "-", "..-", "...-", ".--", "-..-", "-.--", "--.."]
+        
+        unique = {}
+        for each in words:
+            unique["".join(morse_code[ord(ch)-97] for ch in each)] = 0
+        
+        return len(unique)