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How to find the sum of an array of numbers
Given an array [1, 2, 3, 4] , how can I find the sum of its elements? (In this case, the sum would be 10 .)
43 Answers
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Pandas index column title or name
How do I get the index column name in python pandas? Here's an example dataframe:
9 Answers
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Difference between shadowing and overriding in C#?
What's difference between shadowing and overriding a method in C#?
6 Answers
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Convert int to char in java
Below is a code snippet,
15 Answers
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Match multiple cases classes in scala
I'm doing matching against some case classes and would like to handle two of the cases in the same way. Something like this:
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Pandas groupby: How to get a union of strings
I have a dataframe like this:
8 Answers
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How to modify list entries during for loop?
Now I know that it is not safe to modify the list during an iterative looping. However, suppose I have a list of strings, and I want to strip the strings themselves. Does replacement of mutable values count as modification?
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What's the difference between HEAD^ and HEAD~ in Git?
When I specify an ancestor commit object in Git, I'm confused between HEAD^ and HEAD~ .
15 Answers
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C++ equivalent of java's instanceof
What is the preferred method to achieve the C++ equivalent of java's instanceof ?
6 Answers
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Easy way to concatenate two byte arrays
What is the easy way to concatenate two byte arrays?
12 Answers
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