Merge pull request #926 from dsrao711/issue_925

Python soln for Word Break - DP approach

Author: smv1999

Diff for: DSA 450 GFG/WordBreak.py

@@ -0,0 +1,32 @@
+
+# Link : https://leetcode.com/problems/word-break/submissions/
+
+# Reference : https://www.youtube.com/watch?v=Sx9NNgInc3A
+
+# TC : O(mn)
+
+# Approach : https://somber-approval-8f1.notion.site/DSA-Solutions-34100a8ab92f42029011dcf591668343
+
+
+class Solution(object):
+    def wordBreak(self, s, wordDict):
+        """
+        :type s: str
+        :type wordDict: List[str]
+        :rtype: bool
+        """
+        
+        dp = [False] * (len(s) + 1)
+        dp[len(s)] = True
+        
+        for i in range(len(s) - 1 , -1 , -1):
+          for w in wordDict:
+            if((i + len(w)) <= len(s) and s[i : i + len(w)] == w):
+              dp[i] = dp[i + len(w)]
+              
+            if(dp[i]):
+              break
+              
+        return dp[0]
+          
+