Check if All A’s Appears Before All B’s solution leetcode

Check if All A’s Appears Before All B’s solution leetcode

 

Given a string s consisting of only the characters 'a' and 'b', return true if every 'a' appears before every 'b' in the string. Otherwise, return false.

 

Example 1: Check if All A’s Appears Before All B’s solution leetcode

Input: s = "aaabbb"
Output: true
Explanation:
The 'a's are at indices 0, 1, and 2, while the 'b's are at indices 3, 4, and 5.
Hence, every 'a' appears before every 'b' and we return true.

Check if All A’s Appears Before All B’s solution leetcode Example 2:

Input: s = "abab"
Output: false
Explanation:
There is an 'a' at index 2 and a 'b' at index 1.
Hence, not every 'a' appears before every 'b' and we return false.

Example 3: Check if All A’s Appears Before All B’s solution leetcode

Input: s = "bbb"
Output: true
Explanation:
There are no 'a's, hence, every 'a' appears before every 'b' and we return true.

 

Constraints: Check if All A’s Appears Before All B’s solution leetcode

  • 1 <= s.length <= 100
  • s[i] is either 'a' or 'b'.

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