Top 150 Interview簡単

Generate Parentheses

Detailed guide and Python implementation for the 'Generate Parentheses' problem.

問題提起

簡単

Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses.

Write a function generateParenthesis(n: int) -> List[str].

制約
  • 1 <= n <= 8

Example 1
Input
n = 3
Output
["((()))", "(()())", "(())()", "()(())", "()()()"]
Explanation

All 5 valid combinations of 3 pairs of parentheses.

Example 2
Input
n = 1
Output
["()"]
Explanation

Only one valid combination with 1 pair.

Need a Hint?
Consider using Stack-specific data structures like sets or heaps.
Edge Cases to Watch
  • Empty input structures
  • Single element inputs
  • Large numerical bounds

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