Leetcode 1374. Generate a String With Characters That Have Odd C

Given an integer n, return a string with n characters such that each character in such string occurs an odd number of times.

The returned string must contain only lowercase English letters. If there are multiples valid strings, return any of them.  

Example 1:

Input: n = 4

Output: "pppz"

Explanation: "pppz" is a valid string since the character 'p' occurs three times and the character 'z' occurs once. Note that there are many other valid strings such as "ohhh" and "love".

Example 2:

Input: n = 2

Output: "xy"Explanation: "xy" is a valid string since the characters 'x' and 'y' occur once. Note that there are many other valid strings such as "ag" and "ur".

Example 3:

Input: n = 7

Output: "holasss"

easy 题目，不赘述，就是当n为偶数，返回N-1个a加1个b，如果n为奇数，就返回N个a

Runtime: 1 ms, faster than 80.59% of Java online submissions for Generate a String With Characters That Have Odd Counts.

Memory Usage: 40.2 MB, less than 58.23% of Java online submissions for Generate a String With Characters That Have Odd Counts.