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How to reverse a singly linked list using only two pointers?
I wonder if there exists some logic to reverse a singly-linked list using only two pointers.
33 Answers
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Rails Model find where not equal
How can I find records in my database on a not equal condition? I have this now, but is there a fancy rails-speak way of doing it?
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Altering a column: null to not null
I have a table that has several nullable integer columns. This is undesirable for several reasons, so I am looking to update all nulls to 0 and then set these columns to NOT NULL . Aside from changing nulls to 0 , data must be preserved.
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Why can I use auto on a private type?
I was somehow surprised that the following code compiles and runs (vc2012 & gcc4.7.2)
4 Answers
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Why does the JavaScript need to start with “;”?
I have recently noticed that a lot of JavaScript files on the Web start with a ; immediately following the comment section.
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pandas: multiple conditions while indexing data frame - unexpected behavior
I am filtering rows in a dataframe by values in two columns.
3 Answers
3
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postgresql - replace all instances of a string within text field
In postgresql, how do I replace all instances of a string within a database column?
4 Answers
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Pick a random element from an array
Suppose I have an array and I want to pick one element at random.
16 Answers
16
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Flexbox not giving equal width to elements
Attempting a flexbox nav that has up to 5 items and as little as 3, but it's not dividing the width equally between all the elements.
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