Word Break

wordBreak.py

@@ -0,0 +1,24 @@
+class Solution:
+    # @param s, a string
+    # @param dict, a set of string
+    # @return a boolean
+    def wordBreak(self, s, dict):
+        if len(s) == 0:
+            return False
+        ss = len(s)
+        mp =  [[False for i in range(ss)] for j in range(ss)]
+
+        for i in range(ss):
+            for j in range(i, ss):
+                if s[i:j+1] in dict:
+                    mp[i][j] = True
+
+
+        for i in range(ss):
+            for j in range(i, ss):
+                for k in range(i, j):
+                    if mp[i][j]==False:
+                        mp[i][j] = mp[i][k] and mp[k+1][j]
+
+        return mp[0][ss-1]
+