#2109

Adding Spaces to a String

pupil · 545 · lc medium +28 · verified · 71.8% accepted · 1,117 likes · top 81%

Description

You are given a 0-indexed string s and a 0-indexed integer array spaces that specifies positions where spaces should be inserted. A space is placed immediately before the character at each given index.

- For example, given s = "EnjoyYourCoffee" and spaces = [5, 9], spaces are inserted before 'Y' and 'C', producing "Enjoy Your Coffee".

Return the resulting string after all spaces have been inserted.

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 "LeetcodeHelpsMeLearn".

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 "icodeinpython".

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.

Code

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class Solution:
    def addSpaces(self, s: str, spaces: List[int]) -> str:

class Solution:
    def addSpaces(self, s: str, spaces: List[int]) -> str: