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How can building a heap be O(n) time complexity?
...t of the nodes we are calling siftDown from the bottom of the tree, we are now calling siftDown from the top of the tree on each iteration! Although the tree is shrinking, it doesn't shrink fast enough: The height of the tree stays constant until you have removed the first half of the nodes (when yo...
What are bitwise shift (bit-shift) operators and how do they work?
..., you would use the following math:
memoryOffset = (row * 320) + column
Now, back in that day and age, speed was critical, so we would use bitshifts to do this operation.
However, 320 is not a power of two, so to get around this we have to find out what is a power of two that added together make...
Specifying rails version to use when creating a new application
... that having Rails 3 installed fails for 2.3.5 -- Just tested on Mac OS X Snow Leopard with these modules installed:rails (3.0.5, 2.3.5, 2.2.2, 1.2.6)
– Mike
May 2 '11 at 19:41
13
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How to reposition Chrome Developer Tools
...
Cool, dock to right works. Now how do I move the CSS inspector on the Elements tab to the bottom of the dev tools pane? Otherwise I have to view the HTML and the CSS side-by-side in very narrow columns.
– Vicky Chijwani
...
python date of the previous month
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you could use .replace() method: datetime.utcnow().replace(day=1) - timedelta(days=1)
– jfs
Mar 16 '12 at 6:43
1
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Bash continuation lines
... Thanks for your help, but while this does remove the spaces, they are now separate parameters (Bash is interpreting the spaces on the second line as a parameter separator) and are now only printed correctly because of the echo command.
– user880248
Sep 6 '...
How to remove a TFS Workspace Mapping?
...ed in workspace {mypcname};domain\zhasan
– SearchForKnowledge
Aug 22 '14 at 13:48
5
I had a \4.0\...
tmux set -g mouse-mode on doesn't work
...tober 2015)
From the changelog:
Mouse-mode has been rewritten. There's now no longer options for:
- mouse-resize-pane
- mouse-select-pane
- mouse-select-window
- mode-mouse
Instead there is just one option: 'mouse' which turns on mouse support
So this is what I'm using now ...
Why does setTimeout() “break” for large millisecond delay values?
...
You can use:
function runAtDate(date, func) {
var now = (new Date()).getTime();
var then = date.getTime();
var diff = Math.max((then - now), 0);
if (diff > 0x7FFFFFFF) //setTimeout limit is MAX_INT32=(2^31-1)
setTimeout(function() {runAtDate(date, func...
“X does not name a type” error in C++
...is is okay, it's just a pointer;
// we can point to something without knowing how that something is defined
foo* fp;
// likewise, we can form a reference to it
void some_func(foo& fr);
// but this would be an error, as before, because it requires a definition
/* foo fo...