题解 | #括号生成#
括号生成
https://www.nowcoder.com/practice/c9addb265cdf4cdd92c092c655d164ca
class Solution:
def generateParenthesis(self , n: int) -> List[str]:
# write code here
rs = []
def go(l,r,temp):
if l>n or r>n or r>l:
return
if l == n and r == n:
rs.append(temp)
else:
go(l+1, r, temp+'(')
go(l, r+1, temp+')')
go(0,0,'')
return rs
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