984. String Without AAA or BBB LeetCode Solution | Easy Approach

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String Without AAA or BBB Given two integers a and b, return any string s such that:

  • s has length a + b and contains exactly a 'a' letters, and exactly b 'b' letters,
  • The substring 'aaa' does not occur in s, and
  • The substring 'bbb' does not occur in s.

Example 1:

Input: a = 1, b = 2
Output: "abb"
Explanation: "abb", "bab" and "bba" are all correct answers.

Example 2:

Input: a = 4, b = 1
Output: "aabaa"

Constraints:

  • 0 <= a, b <= 100
  • It is guaranteed such an s exists for the given a and b.

String Without AAA or BBB Solutions

Time: O(n)
Space: O(n)

C++

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