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Counting inversions in an array
...cult time seeing how I can use this to find the number of inversions. Any hints or help would be greatly appreciated.
36 An...
A definitive guide to API-breaking changes in .NET
...)
API before change
public static class Foo
{
public static void bar(int i);
}
API after change
public static class Foo
{
public static bool bar(int i);
}
Sample client code working before change
Foo.bar(13);
...
catch exception that is thrown in different thread
...
class Program
{
static void Main(string[] args)
{
Task<int> task = new Task<int>(Test);
task.ContinueWith(ExceptionHandler, TaskContinuationOptions.OnlyOnFaulted);
task.Start();
Console.ReadLine();
}
static int Test()
{
throw ...
How do you get the width and height of a multi-dimensional array?
...
Use GetLength(), rather than Length.
int rowsOrHeight = ary.GetLength(0);
int colsOrWidth = ary.GetLength(1);
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Why does GCC generate such radically different assembly for nearly the same C code?
...unc_one().
Believe it or not, fast_trunc_one() is being optimized to this:
int fast_trunc_one(int i) {
int mantissa, exponent;
mantissa = (i & 0x07fffff) | 0x800000;
exponent = 150 - ((i >> 23) & 0xff);
if (exponent < 0) {
return (mantissa << -exponen...
How do I get an empty array of any size in python?
... you modify one item, all will be changed. ...But, for this example using integers (or any other immutable type), it makes no difference. Or, if you just assign to elements, it is not a problem either. (I mention it because I've done exactly that far too often :) )
– dappawi...
How do I expand the output display to see more columns of a pandas DataFrame?
Is there a way to widen the display of output in either interactive or script-execution mode?
19 Answers
...
Do I need all three constructors for an Android custom view?
...(context, attrs, 0);
}
public MyView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init(context, attrs, defStyle);
}
private void init(Context context, AttributeSet attrs, int defStyle) {
// do additional work
}
The reason is that the parent cl...
Create an enum with string values
...at way it will return the string value whenever accessed and not just when converting toString().
– John
Feb 28 '14 at 23:37
...
How to generate random SHA1 hash to use as ID in node.js?
... in modern browsers, if you'd like
// str byteToHex(uint8 byte)
// converts a single byte to a hex string
function byteToHex(byte) {
return ('0' + byte.toString(16)).slice(-2);
}
// str generateId(int len);
// len - must be an even number (default: 40)
function generateId(len = ...