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How to Solve Minimum Time to Type Word Using Special Typewriter Problem
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LeetCode ProblemMinimum Time to Type Word Using Special Typewriter
There is a special typewriter with lowercase English letters 'a' to 'z' arranged in a circle with a pointer. A character can only be typed if the pointer is pointing to that character. The pointer is initially pointing to the character 'a'. Each second, you may perform one of the following operations: Given a string word, return the minimum number of seconds to type out the characters in word.
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Problem Breakdown
Understanding the Minimum Time to Type Word Using Special Typewriter Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
There is a special typewriter with lowercase English letters 'a' to 'z' arranged in a circle with a pointer. A character can only be typed if the pointer is pointing to that character. The pointer is initially pointing to the character 'a'. Each second, you may perform one of the following operations: Given a string word, return the minimum number of seconds to type out the characters in word.
Examples
# Example 1
Input
word = "abc"
Output
5
# Example 2
Input
word = "bza"
Output
7
# Example 3
Input
word = "zjpc"
Output
34
Constraints
1 <= word.length <= 100
word consists of lowercase English letters.
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Solve Minimum Time to Type Word Using Special Typewriter — There is a special typewriter with lowercase English letters 'a' to 'z' arranged...
Here's the optimal approach using String:
def solve(input):
# Optimal O(n) solution
return result
Time: O(n) | Space: O(n)
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Common questions about solving Minimum Time to Type Word Using Special Typewriter and using PhantomCodeAI during coding interviews.
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PhantomCodeAI reads the problem from a screenshot or listens to it via audio, then generates a complete solution with a step-by-step approach and time/space complexity, so you can focus on explaining your reasoning rather than getting stuck on implementation.
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Does PhantomCodeAI work with HackerRank, CodeSignal, and CoderPad?
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Can PhantomCodeAI handle follow-up questions and modifications?
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Should I still practice these problems on my own first?
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