public class Solution extends Object
2109 - Adding Spaces to a String.
Medium
You are given a 0-indexed string s and a 0-indexed integer array spaces that describes the indices in the original string where spaces will be added. Each space should be inserted before the character at the given index.
s = "EnjoyYourCoffee" and spaces = [5, 9], we place spaces before 'Y' and 'C', which are at indices 5 and 9 respectively. Thus, we obtain "Enjoy **Y**our **C**offee".Return the modified string after the spaces have been added.
Example 1:
Input: s = “LeetcodeHelpsMeLearn”, spaces = [8,13,15]
Output: “Leetcode Helps Me Learn”
Explanation:
The indices 8, 13, and 15 correspond to the underlined characters in “Leetcode**H**elps**M**e**L**earn”.
We then place spaces before those characters.
Example 2:
Input: s = “icodeinpython”, spaces = [1,5,7,9]
Output: “i code in py thon”
Explanation:
The indices 1, 5, 7, and 9 correspond to the underlined characters in “i**c**ode**i**n**p**y**t**hon”.
We then place spaces before those characters.
Example 3:
Input: s = “spacing”, spaces = [0,1,2,3,4,5,6]
Output: “ s p a c i n g”
Explanation: We are also able to place spaces before the first character of the string.
Constraints:
1 <= s.length <= 3 * 105s consists only of lowercase and uppercase English letters.1 <= spaces.length <= 3 * 1050 <= spaces[i] <= s.length - 1spaces are strictly increasing.| Constructor and Description |
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Solution() |
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