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Word Break
Medium Accuracy: 50.24% Submissions: 26117 Points: 4

Given a string A and a dictionary of n words B, find out if A can be segmented into a space-separated sequence of dictionary words.

Note: From the dictionary each word can be taken any number of times and in any order.
Example 1:

Input:
n = 12
B = { "i", "like", "sam",
"sung", "samsung", "mobile",
"ice","cream", "icecream",
"man", "go", "mango" }
A = "ilike"
Output:
1
Explanation:
The string can be segmented as "i like".


Example 2:

Input:
n = 12
B = { "i", "like", "sam",
"sung", "samsung", "mobile",
"ice","cream", "icecream", 
"man", "go", "mango" }
A = "ilikesamsung"
Output:
1
Explanation:
The string can be segmented as 
"i like samsung" or "i like sam sung".

 

Your Task:
Complete wordBreak() function which takes a string and list of strings as a parameter and returns 1 if it is possible to break words, else return 0. You don't need to read any input or print any output, it is done by driver code.


Expected time complexity: O(s2)

Expected auxiliary space: O(s) , where s = length of string A

 

Constraints:
1 ≤ N ≤ 12
1 ≤ s ≤ 1100 , where s = length of string A
 The length of each word is less than 15.

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