Introduction

In this blog post, we will explore how to solve the LeetCode problem "2114" using AI. LeetCode is a popular platform for preparing for coding interviews, and with the help of AI tools like Chatmagic, we can generate solutions quickly and efficiently - helping you pass the interviews and get the job offer without having to study for months.

Problem Statement

A sentence is a list of words that are separated by a single space with no leading or trailing spaces. You are given an array of strings sentences, where each sentences[i] represents a single sentence. Return the maximum number of words that appear in a single sentence. Example 1: Input: sentences = ["alice and bob love leetcode", "i think so too", "this is great thanks very much"] Output: 6 Explanation: - The first sentence, "alice and bob love leetcode", has 5 words in total. - The second sentence, "i think so too", has 4 words in total. - The third sentence, "this is great thanks very much", has 6 words in total. Thus, the maximum number of words in a single sentence comes from the third sentence, which has 6 words. Example 2: Input: sentences = ["please wait", "continue to fight", "continue to win"] Output: 3 Explanation: It is possible that multiple sentences contain the same number of words. In this example, the second and third sentences (underlined) have the same number of words. Constraints: 1 <= sentences.length <= 100 1 <= sentences[i].length <= 100 sentences[i] consists only of lowercase English letters and ' ' only. sentences[i] does not have leading or trailing spaces. All the words in sentences[i] are separated by a single space.

Explanation

Here's an efficient solution to find the maximum number of words in a sentence from an array of sentences:

• Iterate through the sentences: Process each sentence in the input array one by one.
• Count words: For each sentence, efficiently count the number of words by counting the spaces and adding 1.

• Track maximum: Keep track of the maximum word count encountered so far.

• Runtime Complexity: O(N), where N is the total number of characters across all sentences. Storage Complexity: O(1)

Code

    def mostWordsFound(sentences):
    """
    Finds the maximum number of words in a single sentence from an array of sentences.

    Args:
        sentences: A list of strings, where each string is a sentence.

    Returns:
        The maximum number of words in a single sentence.
    """

    max_words = 0
    for sentence in sentences:
        word_count = sentence.count(' ') + 1
        max_words = max(max_words, word_count)
    return max_words