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Knight's Shortest Path on Chessboard
...icing for an upcoming programming competition and I have stumbled across a question that I am just completely bewildered at. However, I feel as though it's a concept I should learn now rather than cross my fingers that it never comes up.
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How to make a function wait until a callback has been called using node.js
...ut rather send the routine that will handle the resulting value:
function(query, callback) {
myApi.exec('SomeCommand', function(response) {
// other stuff here...
// bla bla..
callback(response); // this will "return" your value to the original caller
});
}
So you dont use it like...
How to read/process command line arguments?
...ain.py "James Smith" which puts James Smith in sys.argv[1] and produces an IndexError when you try to use the nonexistent sys.argv[2]. Quoting behavior will somewhat depend on which platform and shell you run Python from.
– tripleee
Dec 22 '17 at 8:02
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How can I escape white space in a bash loop list?
...' +
The other safe approach is to use NUL-terminated list, though this requires that your find support -print0:
# this is safe
while IFS= read -r -d '' n; do
printf '%q\n' "$n"
done < <(find test -mindepth 1 -type d -print0)
You can also populate an array from find, and pass that array ...
How to split csv whose columns may contain ,
...will test for commas outside of double quote pairs by looking only at even indexes of the quotesArray. It also removes double quotes from the start and end of column values.
public static string[] ParseCsvRow(string csvrow)
{
const string obscureCharacter = "ᖳ";
if (csvro...
Similarity String Comparison in Java
...nce edit distance;
Q-Gram (Ukkonen);
n-Gram distance (Kondrak);
Jaccard index;
Sorensen-Dice coefficient;
Cosine similarity;
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You can find explanation and java implementation of these here:
https://github.com/tdebatty/java-string-similarity
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How to skip “are you sure Y/N” when deleting files in batch files
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Use del /F /Q to force deletion of read-only files (/F) and directories and not ask to confirm (/Q) when deleting via wildcard.
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lose vim colorscheme in tmux mode
... must be set are 1. your terminal emulator's TERM to xterm-256color or an equivalent value like urxvt-unicode-256color and 2. tmux's default TERM with set -g default-terminal "screen-256color".
– romainl
Mar 11 '14 at 22:28
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How to crop an image in OpenCV using Python
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roi = im[y1:y2, x1:x2]
here is a comprehensive resource on numpy array indexing and slicing which can tell you more about things like cropping a part of an image. images would be stored as a numpy array in opencv2.
:)
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How can I set the request header for curl?
How would I pass multiple values in the header for a curl request?
3 Answers
3
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