Leetcode Problem 2185. Counting Words With a Given Prefix
2185. Counting Words With a Given Prefix
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Leetcode Solutions
Iterative Prefix Matching
Solution Idea
Algorithm Steps
Code Implementation
Complexity Analysis
Initialize a counter to 0.
Iterate through each word in the
words
array.
For each word, check if it starts with the
pref
prefix.
In Python, use
word.startswith(pref)
.
In Java, use
word.substring(0, pref.length()).equals(pref)
if the word's length is at least as long as the prefix's length.
If the word contains the prefix, increment the counter.
After the loop, return the counter as it represents the number of words with the given prefix.
Filter and Count Approach
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