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Modular multiplicative inverse function in Python
Does some standard Python module contain a function to compute modular multiplicative inverse of a number, i.e. a number y = invmod(x, p) such that x*y == 1 (mod p) ? Google doesn't seem to give any good hints on this.
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How do I efficiently iterate over each entry in a Java Map?
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Map<String, String> map = ...
for (Map.Entry<String, String> entry : map.entrySet()) {
System.out.println(entry.getKey() + "/" + entry.getValue());
}
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Looking for simple Java in-memory cache [closed]
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If you're needing something simple, would this fit the bill?
Map<K, V> myCache = Collections.synchronizedMap(new WeakHashMap<K, V>());
It wont save to disk, but you said you wanted simple...
Links:
Collections.synchronizedMap
WeakHashMap
(As Adam commented, synchronising...
How to convert a string to integer in C?
I am trying to find out if there is an alternative way of converting string to integer in C.
12 Answers
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Using AES encryption in C#
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If you just want to use the built-in crypto provider RijndaelManaged, check out the following help article (it also has a simple code sample):
http://msdn.microsoft.com/en-us/library/system.security.cryptography.rijndaelmanaged.aspx
And just in case ...
How to change the timeout on a .NET WebClient object
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what's the default timeout??
– knocte
Nov 13 '12 at 16:16
23
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How to filter a dictionary according to an arbitrary condition function?
...n use a dict comprehension:
{k: v for k, v in points.iteritems() if v[0] < 5 and v[1] < 5}
And in Python 3:
{k: v for k, v in points.items() if v[0] < 5 and v[1] < 5}
share
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improv...
Pros and cons of AppSettings vs applicationSettings (.NET app.config / Web.config)
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The basic <appSettings> is easier to deal with - just slap in a <add key="...." value="..." /> entry and you're done.
The downside is: there's no type-checking, e.g. you cannot safely assume your number that you wanted to c...
Is there any async equivalent of Process.Start?
... can use the Exited event together with TaskCompletionSource:
static Task<int> RunProcessAsync(string fileName)
{
var tcs = new TaskCompletionSource<int>();
var process = new Process
{
StartInfo = { FileName = fileName },
EnableRaisingEvents = true
};
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Android Text over image
...I did it and it worked exactly as you asked for inside a RelativeLayout:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/relativelayout"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<ImageView
...