Package g0101_0200.s0139_word_break

Class Solution

  • public class Solution
extends Object
    139 - Word Break.

    Medium

    Given a string s and a dictionary of strings wordDict, return true if s can be segmented into a space-separated sequence of one or more dictionary words.

    Note that the same word in the dictionary may be reused multiple times in the segmentation.

    Example 1:

    Input: s = “leetcode”, wordDict = [“leet”,“code”]

    Output: true

    Explanation: Return true because “leetcode” can be segmented as “leet code”.

    Example 2:

    Input: s = “applepenapple”, wordDict = [“apple”,“pen”]

    Output: true

    Explanation: Return true because “applepenapple” can be segmented as “apple pen apple”. Note that you are allowed to reuse a dictionary word.

    Example 3:

    Input: s = “catsandog”, wordDict = [“cats”,“dog”,“sand”,“and”,“cat”]

    Output: false

    Constraints:

    • 1 <= s.length <= 300
    • 1 <= wordDict.length <= 1000
    • 1 <= wordDict[i].length <= 20
    • s and wordDict[i] consist of only lowercase English letters.
    • All the strings of wordDict are unique.

    • Constructor Detail

      • Solution

        public Solution()

    • Method Detail