list sorting returning unexpected output

Question

Input

Output

Expected output

I was expecting the list to be sorted but it is getting sorted according to the sets , even after it was converted from the set to a list.

Code

m = int(input())
minp=input().split()
n = int(input())
ninp=input().split()
a,b=set(minp),set(ninp)
set3=list(b.difference(a).union(a.difference(b)))
set3.sort()
for i in set3:
    print(i)

Carcigenicate · Accepted Answer · 2018-09-03 18:52:17Z

2

set3 contains strings, so sort is sorting the strings lexicographically.

Convert the Strings to numbers first before sorting:

set3 = [int(n) for n in set3]
set3.sort()

answered Sep 3, 2018 at 18:52

Carcigenicate

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