0
[1]
3
[1,3,3,1]
class Solution: def getRow(self , num: int) -> List[int]: # write code here prev = [1] if num==0: return prev for i in range(1,num+1): cur = [1] for j in range(len(prev)-1): cur.append(prev[j]+prev[j+1]) cur.append(1) prev = cur return cur
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