String Merging Algorithm
14 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the purpose of initializing an empty string 'ret' in the solution?

  • To store the merged result of the two input strings (correct)
  • To store the length of the input strings
  • To store the characters of the input strings separately
  • To store the indexes of the input strings

    • What is the purpose of the two indexes 'i' and 'j' in the solution?

  • To keep track of the current position in the input strings (correct)
  • To store the length of the input strings
  • To store the characters of the input strings separately
  • To store the merged result of the two input strings

    • What is the condition for the 'while' loop to merge characters from the input strings alternately?

  • Until both strings reach their end
  • Until one of the strings reaches its end (correct)
  • Until the lengths of the strings are equal
  • Until the strings are swapped

    • What happens after the first 'while' loop completes?

    <p>The remaining characters from the longer string are appended</p> Signup and view all the answers

    What is the purpose of the additional 'while' loops?

    <p>To append the remaining characters from the longer string</p> Signup and view all the answers

    What is the final result of the solution?

    <p>A string containing the characters from both input strings in an alternating order</p> Signup and view all the answers

    What happens if the input strings have different lengths?

    <p>The remaining characters from the longer string are appended to the result</p> Signup and view all the answers

    What is the benefit of using indexes 'i' and 'j' in the solution?

    <p>It makes the solution more efficient and easier to implement</p> Signup and view all the answers

    What is the role of the 'while' loop in the merging alternately step?

    <p>To merge characters from both strings alternately</p> Signup and view all the answers

    What happens when the first 'while' loop completes?

    <p>The remaining characters are appended to the merged string</p> Signup and view all the answers

    What is the purpose of the additional 'while' loops?

    <p>To handle the remaining characters in the input strings</p> Signup and view all the answers

    What is the result of the solution if the input strings have the same length?

    <p>The merged string will have alternating characters from both strings</p> Signup and view all the answers

    What will happen if the input strings are swapped in the solution?

    <p>The merged string will be the same</p> Signup and view all the answers

    What is the main advantage of the solution?

    <p>It can handle input strings of different lengths</p> Signup and view all the answers

    Study Notes

    Initialization

    • Initialize an empty string ret to store the merged result.
    • Determine the lengths of input strings word1 and word2 and store them in length1 and length2.
    • Initialize two indexes, i and j, both set to zero, to track the current position in word1 and word2.

    Merging Alternately

    • Use a while loop to merge characters from word1 and word2 alternately.
    • The loop runs as long as there are characters left in both strings.
    • Append the current character from word1 to ret and increment the index i.
    • Append the current character from word2 to ret and increment the index j.
    • This process adds one character from each string alternately to the result string ret.

    Handling Remaining Characters

    • After the first while loop, one of the strings might still have remaining characters if it is longer than the other.
    • Use two additional while loops to append the remaining characters to ret.
    • The first while loop appends remaining characters from word1 to ret, incrementing the index i each time.
    • The second while loop appends remaining characters from word2 to ret, incrementing the index j each time.

    Returning the Result

    • After all characters from both strings have been merged and any remaining characters have been appended, return the merged string ret.
    • The resulting string ret contains characters from word1 and word2 in an alternating order, with any extra characters from the longer string appended at the end.

    Example Walkthroughs

    • Example 1: Merging "abc" and "pqr" results in "apbqcr".
    • Example 2: Merging "ab" and "pqrs" results in "apbqrs".
    • Example 3: Merging "abcd" and "pq" results in "apbqcd".

    Initialization

    • Initialize an empty string ret to store the merged result.
    • Determine the lengths of input strings word1 and word2 and store them in length1 and length2.
    • Initialize two indexes, i and j, both set to zero, to track the current position in word1 and word2.

    Merging Alternately

    • Use a while loop to merge characters from word1 and word2 alternately.
    • The loop runs as long as there are characters left in both strings.
    • Append the current character from word1 to ret and increment the index i.
    • Append the current character from word2 to ret and increment the index j.
    • This process adds one character from each string alternately to the result string ret.

    Handling Remaining Characters

    • After the first while loop, one of the strings might still have remaining characters if it is longer than the other.
    • Use two additional while loops to append the remaining characters to ret.
    • The first while loop appends remaining characters from word1 to ret, incrementing the index i each time.
    • The second while loop appends remaining characters from word2 to ret, incrementing the index j each time.

    Returning the Result

    • After all characters from both strings have been merged and any remaining characters have been appended, return the merged string ret.
    • The resulting string ret contains characters from word1 and word2 in an alternating order, with any extra characters from the longer string appended at the end.

    Example Walkthroughs

    • Example 1: Merging "abc" and "pqr" results in "apbqcr".
    • Example 2: Merging "ab" and "pqrs" results in "apbqrs".
    • Example 3: Merging "abcd" and "pq" results in "apbqcd".

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    This is a quiz on a string merging algorithm, where two input strings are merged alternately. Understand the step-by-step process of this algorithm.

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser