LeetCode Entry

1935. Maximum Number of Words You Can Type

15.09.2025 easy 2025 kotlin rust

Count words with all letters

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Problem TLDR

Count words with all letters #easy

Intuition

No special algo here. Broken letters is up to 26, no hashset needed.

Approach

  • write a one-liner

Complexity

  • Time complexity: \(O(n)\)

  • Space complexity: \(O(n)\)

Code


// 14ms
    fun canBeTypedWords(txt: String, bl: String) =
        txt.split(" ").count { it.all { it !in bl}}



// 0ms
    pub fn can_be_typed_words(txt: String, bl: String) -> i32 {
        txt.split(" ").filter(|w| !w.chars().any(|c| bl.contains(c))).count() as _
    }