# What is Output Limit Exceed Error?

• ``````    num.sort()
result = []
for i in range(len(num)-2):
if i > 0 and num[i]==num[i-1]:
pass

j = i + 1
k = len(num)-1
while j < k:

sum = num[j] + num[k] + num[i]
if sum == 0:
result.append([num[i],num[j],num[k]])
j += 1
k -= 1
# check duplicate
while j < k and num[j]==num[j-1]:
j += 1
while j < k and num[k]==num[k+1]:
k -= 1

elif sum < 0:
j += 1
else:
k -= 1

return result``````

• Try this case: [-1, -1, -1, 2]

I got this problem just now.
Just change the `for i in range(len(num)-2)` into while-loop.
It seems that the 'i' cannot be changed inside the for-loop.

• hi, thank you so much for your help @illuz. In fact, I corrected this problem by using 'continue 'instead of 'pass' in the for loop. Thanks for your help anyway~

• Sorry, my code uses `while num[i] == num[i + 1]: i += 1`in the end of loop... I didn't see you use `pass`...

• Output Limit Exceed Error: I reckon this means your returned collection's size is too big. For example in this case your results have many duplicates.

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