# Time Limit Exceeded based on 3Sum problem

• ``````class Solution(object):
def fourSum(self, nums, target):
"""
:type nums: List[int]
:type target: int
:rtype: List[List[int]]
"""
nums = sorted(nums)
siz = len(nums)
soln = []
if siz < 4:
return soln

for i in range(siz-3):
for j in range(i+1, siz-2):
if (j > i + 1) and nums[j] == nums[j-1]:
continue
lo = j + 1
hi = siz -1
while lo < hi:
if (lo > j + 1) and nums[lo] == nums[lo-1]:
lo += 1
continue
if (hi < siz - 1) and nums[hi] == nums[hi+1]:
hi -= 1
continue

temp = nums[i] + nums[j] + nums[lo] + nums[hi]
if temp == target:
soln.append([nums[i], nums[j], nums[lo], nums[hi]])
lo += 1
hi -= 1
if temp < target:
lo += 1
else:
hi -= 1
return soln
``````

The above snippet is what I implemented and the code Time Limit Exceeded.
So, I copied the test case OJ gave, ran the code using custom testcase and the solutions are the same.

Run Code Result: ×

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