Create uncrossed-lines.py

Author: kamyu104

Python/uncrossed-lines.py

@@ -0,0 +1,20 @@
+# Time:  O(m * n)
+# Space: O(min(m, n))
+
+class Solution(object):
+    def maxUncrossedLines(self, A, B):
+        """
+        :type A: List[int]
+        :type B: List[int]
+        :rtype: int
+        """
+        if len(A) < len(B):
+            return self.maxUncrossedLines(B, A)
+
+        dp = [[0 for _ in xrange(len(B)+1)] for _ in xrange(2)]
+        for i in xrange(len(A)):
+            for j in xrange(len(B)):
+                dp[(i+1)%2][j+1] = max(dp[i%2][j] + int(A[i] == B[j]),
+                                       dp[i%2][j+1],
+                                       dp[(i+1)%2][j])
+        return dp[len(A)%2][len(B)]