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Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Favorites infavorites:mine
infavorites:1234
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
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-apples
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Results tagged with Search options user 58589

For challenges which involve deciding whether or not the input meets certain criteria, and outputting some data, representing that decision.

2
votes
PowerShell, 88 78 77 23 bytes !!(diff -Inc -Ex $A $B) Thanks to @briantist for shaving off a whopping 54 bytes from my original, more verbose answer by shortening -IncludeEqual, -ExcludeDifferent, …
answered Nov 30 '16 by wubs