from typing import List
lis = ["a","b", "c", "d"]
# for i in lis:
# print(i)
print(lis[2])
lis.append("e")
lis.pop()
lis.pop()
lis.insert(0, 'x')
# lis.insert(len(lis), 't')
lis[3:3] = ['alien']
# lis.splice(2, 0, "alien")
print(lis)
print()
def threeSum(nums: List[int]) -> List[List[int]]:
total = len(nums)
count = 0
for i, n in enumerate(nums):
print(i, n)
if (n + n[i + 1])
if total:
return total
else:
return []
input = [-1,0,1,2,-1,-4]
result = threeSum(input)
print(result)
def threeSum(nums: List[int]) -> List[List[int]]:
for i, n in enumerate(nums):
print(i, n)
if total:
return total
else:
return []
input = [-1,0,1,2,-1,-4]
result = threeSum(input)
print(result)
class Solution:
def threeSum(self, nums: List[int]) -> List[List[int]]:
my_list = []
last = len(nums) - 1
for index, n in enumerate(nums):
j = index + 1
if index > 0 and n == nums[index - 1]:
continue
while j < last:
threeSum = n + nums[j] + nums[last]
if threeSum > 0:
last -= 1
if threeSum < 0:
j += 1
else:
my_list.append([n, nums[j], nums[last]])
j += 1
while nums[j] == nums[j -1] and j < last:
j += 1
return my_list
