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What is the best way to convert seconds into (Hour:Minutes:Seconds:Milliseconds) time?

... I did some benchmarks to see what's the fastest way and these are my results and conclusions. I ran each method 10M times and added a comment with the average time per run. If your input milliseconds are not limited to one day (your result may be 143:59:59.999), these are the...
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argparse module How to add option without any argument?

...you already have in your code. You just have to replace the commented line and then you can access the value with args.simulate. – Felix Kling Mar 11 '11 at 10:34 add a commen...
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Operator precedence with Javascript Ternary operator

...ause> is assigned to <variable>, <false clause> is ignored, and the next statement is executed. If <expression> evaluates to false, then <true clause> is ignored and the value of <false clause> is assigned to <variable>. The important thing to realise with th...
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How to implement an STL-style iterator and avoid common pitfalls?

I made a collection for which I want to provide an STL-style, random-access iterator. I was searching around for an example implementation of an iterator but I didn't find any. I know about the need for const overloads of [] and * operators. What are the requirements for an iterator to be "STL-s...
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Write a function that returns the longest palindrome in a given string

...ng Manacher's Algorithm in O(n) time! Its implementation can be found here and here. For input String s = "HYTBCABADEFGHABCDEDCBAGHTFYW1234567887654321ZWETYGDE" it finds the correct output which is 1234567887654321. share ...
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Why not inherit from List?

... is to say, "to the human mind") is just a list of things with a few bells and whistles? Ask any ten non-computer-programmer people who are familiar with the existence of football to fill in the blank: A football team is a particular kind of _____ Did anyone say "list of football players wit...
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How to access random item in list?

I have an ArrayList, and I need to be able to click a button and then randomly pick out a string from that list and display it in a messagebox. ...
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IEnumerable and Recursion using yield return

...y one iterator (state machine) created. See this question for more details and a sample implementation - but this obviously adds a certain amount of complexity too. share | improve this answer ...
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Java: Detect duplicates in ArrayList?

...lt; list.size()){ /* There are duplicates */ } Update: If I'm understanding your question correctly, you have a 2d array of Block, as in Block table[][]; and you want to detect if any row of them has duplicates? In that case, I could do the following, assuming that Block implements "equals"...
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Finding all possible permutations of a given string in python

... not specified or is None, then r defaults to the length of the iterable and all possible full-length permutations are generated. Permutations are emitted in lexicographic sort order. So, if the input iterable is sorted, the permutation tuples will be produced in sorted order. You'll ha...