Package g2101_2200.s2185_counting_words_with_a_given_prefix

Class Solution

java.lang.Object
g2101_2200.s2185_counting_words_with_a_given_prefix.Solution
public class Solution extends java.lang.Object
2185 - Counting Words With a Given Prefix.

Easy

You are given an array of strings words and a string pref.

Return the number of strings in words that contain pref as a prefix.

A prefix of a string s is any leading contiguous substring of s.

Example 1:

Input: words = [“pay”,“attention”,“practice”,“attend”], pref = “at”

Output: 2

Explanation: The 2 strings that contain “at” as a prefix are: “attention” and “attend”.

Example 2:

Input: words = [“leetcode”,“win”,“loops”,“success”], pref = “code”

Output: 0

Explanation: There are no strings that contain “code” as a prefix.

Constraints:

  • 1 <= words.length <= 100
  • 1 <= words[i].length, pref.length <= 100
  • words[i] and pref consist of lowercase English letters.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    prefixCount(java.lang.String[] words, java.lang.String pref)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • prefixCount

      public int prefixCount(java.lang.String[] words, java.lang.String pref)