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Easy interview question got harder: given numbers 1..100, find the missing number(s) given exactly k
...hen
print i
end if
end for
The first loop initialises the k extra entries to the same as the first entry in the array (this is just a convenient value that we know is already present in the array - after this step, any entries that were missing in the initial array of size N-k are sti...
How do I get the localhost name in PowerShell?
...~~~~~~~~~~ + CategoryInfo : ObjectNotFound: (env:COMPUTERNAME:String) [], CommandNotFoundException + FullyQualifiedErrorId : CommandNotFoundException
– mathisfun
Mar 14 '18 at 12:21
...
How to obtain the start time and end time of a day?
...teTime zdtStop = today.plusDays( 1 ).atStartOfDay( zoneId ) ;
zdtStart.toString() = 2020-01-30T00:00+01:00[Africa/Tunis]
zdtStop.toString() = 2020-01-31T00:00+01:00[Africa/Tunis]
See the same moments in UTC.
Instant start = zdtStart.toInstant() ;
Instant stop = zdtStop.toInstant() ;
start.toS...
Input text dialog Android
... like a text Dialog to appear and I would like to store the result in a String . I'd like the text Dialog to overlay the current screen. How can I do this?
...
How to simplify a null-safe compareTo() implementation?
...
Using Java 8:
private static Comparator<String> nullSafeStringComparator = Comparator
.nullsFirst(String::compareToIgnoreCase);
private static Comparator<Metadata> metadataComparator = Comparator
.comparing(Metadata::getName, nullSafeStri...
How can I get the named parameters from a URL using Flask?
...
Use request.args to get parsed contents of query string:
from flask import request
@app.route(...)
def login():
username = request.args.get('username')
password = request.args.get('password')
...
Programmatically obtain the phone number of the Android phone
...(TelephonyManager)mAppContext.getSystemService(Context.TELEPHONY_SERVICE);
String mPhoneNumber = tMgr.getLine1Number();
Required Permission:
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
Caveats:
According to the highly upvoted comments, there are a few caveats t...
XML parsing of a variable string in JavaScript
I have a variable string that contains well-formed and valid XML. I need to use JavaScript code to parse this feed.
10 An...
What and where are the stack and heap?
...ate a lot of data.
Responsible for memory leaks.
Example:
int foo()
{
char *pBuffer; //<--nothing allocated yet (excluding the pointer itself, which is allocated here on the stack).
bool b = true; // Allocated on the stack.
if(b)
{
//Create 500 bytes on the stack
char buffer[50...
Python ElementTree module: How to ignore the namespace of XML files to locate matching element when
... you can handle multiple namespaces and namespace aliases:
from io import StringIO # for Python 2 import from StringIO instead
import xml.etree.ElementTree as ET
# instead of ET.fromstring(xml)
it = ET.iterparse(StringIO(xml))
for _, el in it:
prefix, has_namespace, postfix = el.tag.partition...