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Why is a combiner needed for reduce method that converts type in java 8
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How do I access the command history from IDLE?
...ound under ~/.idlerc by default; look for the entry "history-previous" and set it to as below...
history-previous = <Key-Up>
Done.
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Is there a way to ignore header lines in a UNIX sort?
I have a fixed-width-field file which I'm trying to sort using the UNIX (Cygwin, in my case) sort utility.
12 Answers
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How to get the path of the batch script in Windows?
...move the final backslash, you can use the :n,m substring syntax, like so:
SET mypath=%~dp0
echo %mypath:~0,-1%
I don't believe there's a way to combine the %0 syntax with the :~n,m syntax, unfortunately.
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Practical uses of different data structures [closed]
... Space performance concerns how the amount of memory grows for larger data sets. Also, note that big-O notation ignores constant factors - for smaller data sets, an O(n^2) algorithm may still be faster than an O(n * log n) algorithm that has a higher constant factor. Complex algorithms often have mo...
How to find the lowest common ancestor of two nodes in any binary tree?
The Binary Tree here is may not necessarily be a Binary Search Tree.
The structure could be taken as -
34 Answers
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How to kill all processes with a given partial name? [closed]
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Use pkill -f, which matches the pattern for any part of the command line
pkill -f my_pattern
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Python way of printing: with 'format' or percent form? [duplicate]
In Python there seem to be two different ways of generating formatted output:
4 Answers
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Increase distance between text and title on the y-axis
...ment_text() to change the distance between the axis title and the numbers. Set the values of the margin on top, right, bottom, and left side of the element.
ggplot(mpg, aes(cty, hwy)) + geom_point()+
theme(axis.title.y = element_text(margin = margin(t = 0, r = 20, b = 0, l = 0)))
margin can a...
How to perform Callbacks in Objective-C
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Header File:
@interface MyClass : NSObject {
id delegate;
}
- (void)setDelegate:(id)delegate;
- (void)doSomething;
@end
@interface NSObject(MyDelegateMethods)
- (void)myClassWillDoSomething:(MyClass *)myClass;
- (void)myClassDidDoSomething:(MyClass *)myClass;
@end
Implementation (.m) Fil...