golang highlight:
var n = nil
if err != nil {
fmt.Printf("%s", err)
}
sql highlight:
SELECT id, * FROM TABLE WHERE id=id
python highlight:
from typing import List
def helper(S, i, slate, results):
# base case
if i == len(S):
results.append(slate[:]) # copy slate into results
return
# count duplicates
count = 0
for j in range(i, len(S)):
if S[i] == S[j]:
count += 1
else:
break
# exclude choice
helper(S, i + count, slate, results)
# include choices for all combinations of duplicates
for _ in range(1, count + 1):
slate.append(S[i])
helper(S, i + count, slate, results)
for _ in range(1, count + 1):
slate.pop()
class Solution:
def subsetsWithDup(self, nums: List[int]) -> List[List[int]]:
nums.sort()
results: List[List[int]] = []
helper(nums, 0, [], results)
return results