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I think encryption would be a useful tag. There are currently 125 candidate questions for such a tag. (Thank you @Mat'sMug for the improved search.)
It was pointed out that we already have a cryptography tag, but encryption is just a subset of crytography; along with hashing. SO has a tag for it...
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I've been working on ubuntu since many years but not quite familiar with bash scripting. My development tools involve servers like nginx and apache, the mysql database and beanstalkd. Obviously, I just can't keep all these services running always and overwhelm my CPU capacity!, so I need a way of...
Using x64 assembly, I solved the Largest Prime Factor problem on project euler. The problem goes as follows:
The prime factors of 13195 are 5, 7, 13 and 29.
What is the largest prime factor of the number 600851475143 ?
The answer is 6857.
I think I have a top notch algorithm to do the...
I have code, but my question is about overall design patterns. Ideally, I would ask a question describing the design decisions made in my project but would have minimal actual code samples.
Is this acceptable/encouraged?
I'd like some input on the way I've structured some things in a side-project I'm working on.
I declare an abstract class, CelestialObj, which will contain the common elements between Planets, and Moons (both of which I'd like to be derived from CelestialObj, obviously).
Now, a Planet must keep ...
How do I check if a particular key exists in a JavaScript object or array?
If a key doesn't exist and I try to access it, will it return false? Or throw an error?
I used Python to write the following program:
"""
A desired equaltion includes a 4-digit integer multiplies a single-digit integer
to give another 4-digit integer and all 9 digits(1-9) are used in the equation.
"""
import random
found=False
while not found:
full_range=range(1,10)
fo...
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I am designing an API for a driver that manipulates HW. I have done the following:
namespace HWRegister
{
//private:
namespace
{
//accessible only within this namespace
//Represents one of the four HW blocks.
enum EHWUnit
{
Block0,
Block1,
Block2,
Block3
};
enum EHWSet
{
Rx0,
Rx1,
Rx2,
Rx3,
Tx...
I would like some feedback on a Java program which implements the Sieve of Eratosthenes to find prime numbers. Some of the 'features' I've included in the program include:
Uses a BitSet for identifying primes. What really gets checked is whether the index of any bit is prime. This eliminates ...
The following code is a clock in Raphael JS.
Can someone let me know if this is a proper (and efficient) way of doing it? It works, but I wanted to understand if there's a way it be made better (I can use a for loop for the clones, but my browser gets stuck if I do it).
window.onload = function...
/*instance variables for the class are:-*/
private String input="";//We have nothing to display on the screen,if we dont do this creates the problem of displaying the null.
private String firstOperand="0"; //Standard firstOperand.
private String previousResult = "";//for...
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i am generating random numerical 6 to 10 digit password, need some important reviews of yours,Is it Ok or some modification is needed?
val AB = "0123456789669900"
val rnd = new Random()
def randomPassword(): String = {
val len = rnd.nextInt(5) + 5
val sb = new StringBuilder(len)
fo...
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This is a continuation of this question.
Following the previous advise, the thread pool now can handle almost all types of input, except for one key form, where the function/functor requires one of its arguments to be std::move'd as shown below.
main.cpp
#include <iostream>
#include "threadpo...0
In my (c#) code, I need to generate a string (from a longer string) which when UTF-8 encoded, is no longer than a given max length (in bytes).
public static string OfMaxBytes(this string str, int maxByteLength)
{
return str.Aggregate("", (s, c) =>
{
if (Encodi...
I am following up on this answer for a scenario that I am currently working on. Like the OP, I am too concerned about the longevity of the code.
public IQueryable<TEntity> EmptyEnumerable()
{
return Enumerable.Empty<TEntity>().AsQueryable();
}
private Expression<Func<TEntity, bool>> GetFilt...
I don't want to reinvent the bicycle, so I want to ask whether exists class like
Result
boolean isOk();
String getError(); // in case if isOk returns false
or something similar?
Your task is to
write a function that prints to the standard output (stdout) for each query the user name that matches the query
if there are multiple user names matching the query please select the one that is the smallest lexicographically
all string matches must be case insensitive
if no mat...0
I want to create a table that looks like this:
--------------------------------------------------
| | USD |CAD |
--------------------------------------------------
|Smallest Donation | 100 |250 |
-------------------------------------------...
Python 2, 64
print' ottffssennwhoiieiieoruvxvgn ere ehe e nt'[input()::9]
This is what the string looks like with some extra whitespace (try reading vertically):
o t t f f s s e n
n w h o i i e i i
e o r u v x v g n
e r e e h e
e n t
As explained in the comments below, ...
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First project in Dart - looking for style tips. I'm feel like I'm writing it a bit like Java, and would like to learn how to write dart-y dart.
Also - what's the convention on multiple files in a project? There are other files in this project, and I do not know how to include them in each other...0
I've got the following code inside an integration test.
[TestMethod]
public void Integration_GetUser_WithoutLoggingIn_ThrowsInvalidOperationException()
{
var myApi = new Api(new Session());
try
{
var irrelevant = myApi.GetUserInfoAsync().AsTask().Result;
}
catch (Agg...0
I have been given the following C code
static struct sl {
BITTYPE bitno;
char *szLab;
} *sLabs;
void ReadTableNames(char *szTabNames)
{
...
struct sl *sLocLab;
...
sLocLab = sLabs = (struct sl*)malloc(sizeof(*sLabs) * nTables);
...
}
I have translated this to C++ b...
I built a simple class to handle skill increases for the workers in a strategy game for iOS. The basic idea is that whenever a worker finishes a job, their skill (which starts at 0) will increase by 1. Whenever the skill reaches a multiple of 10, this increases the skill multiplier by 0.10. Th...
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This is a long long long post... I'm afraid that I cannot really make it shorter, so please be indulgent with me Smile | :)
Well, I'm trying to design an API.NET for communication with Testing Equipment and I cannot figure out a proper way for designing the architecture.
Basically, we have diff...
The problem I am talking about is this
Problem statment:
We'll say that a "mirror" section in an array is a group of contiguous elements such that somewhere in the array, the same group appears in reverse order. For example, the largest mirror section in {1, 2, 3, 8, 9, 3, 2, 1} is length 3 (th...
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The following code is intended to parse a string of the following format and return whether the current time falls in that window:
start_time-stop_time [(day|day-day[, ...])][; ...]
For example,
0900-1200 (mon-wed, sat); 0100-0200 (sun, tue)
The code for parsing that type of string is here:...
I am trying to implement infix to postfix conversion using stacks. Actually I have done it successfully. But I have a doubt on complexity of logic that I used for priority checking.
Following is the code:
int hasLowerPriority(char ch,char ch2)
{
int num=0,num2=0;
if(ch=='+'||ch=='-')
...
I can't understand why Java Script work that way.
console.log("1" + 1);
console.log("1" - 1);
The first prints 11, and the second prints 0.
Why Java Script handles the first as a String and the second as a number?
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Is there a better method for covering errors in my case? I am looking for best practice for now and future instances.
Foreseen errors that could arise:
No attributes at all
Some attributes could be missing
Attribute value could be empty
// converting dom into array to use later
$fields = $...0
I wanted to share this and get some feedback. My goal was to be able to have an object with methods:
class Thing(object):
def __init__(self, data=123):
self.data = data
def add_one(self):
self.data += 1
def add_number(self, number):
self.data += number
An...
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