2109. Adding Spaces to a String | Daily LeetCode Solution | Java #coding #leetcodechallenge

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Problem Link: https://leetcode.com/problems/adding-spaces-to-a-string/description/?envType=daily-question&envId=2024-12-03

Solution Description:
The task is to insert spaces into a given string s at the indices specified in the array spaces. The result is a modified string with spaces inserted at the correct positions.

Approach:
StringBuilder for Efficiency:
Use a StringBuilder to construct the result efficiently while iterating through the characters of s.
Tracking Space Indices:
Maintain a pointer index to iterate through the spaces array.
Compare the current character index of s with the current value of spaces[index].
Insert Spaces:
When the current character index matches a value in the spaces array, append a space to the result and move the pointer to the next value in spaces.
Build the Final String:
Append the current character to the result after handling spaces.
Return the Modified String:
Convert the StringBuilder to a string and return it.

Code Explanation:
Input: A string s and an array spaces containing indices where spaces should be added.
Output: A new string with spaces inserted at the specified indices.
Complexity:
Time: ????(????), where ???? is the length of s. Both iterating through s and processing spaces are linear.
Space: ????(????), for storing the resulting string.

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Категория
Программирование на java
Теги
String Manipulation, StringBuilder, Array Processing
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