I'm working over project for my studies. It's a simple program about brewing coffee. I'm thinking about solution for showing single parameter in GUI. As follows:
I have a source brew parameter class:
public abstract class CoffeeParam { /* It's empty */ }
public class CoffeeParam<T> : CoffeePara...
I am a newbie to C and programming and I have attempted to come up with my own functions for a singly linked list - including create, insert, search and delete. I would really appreciate it if a kind soul could take a look at my code and spot any mistakes and point out how I could improve it :) M...
a password protected file or folder like in "Microsoft power-point" file a password can be set. and after set a password if this file opened ten a password window comes and required a password.
No joy yet from code review site but I have found a workaround.. If I update the budget holder in the budget holder field in any one of the Pivot Tables (ensuring multiple selection is switched off), ALL the pivot tables update with the new budget holder (as they are all linked via the slicer?), and the loop takes about 2 seconds which will do me just fine. Gives me enough time to make a coffee while the routine runs for all 170 budget holders. Still seems odd there does not seem to be a quick way using the slicer route but I’m happy. — Chris34 secs ago
i found this code at codewar, as i'm new to programming, can anone help me, explain this to me
function sumTwoSmallestNumbers(numbers) {
var [ a, b ] = numbers.sort((a, b) => a - b)
return a + b
}
what is [a, b] here, what it called, how it assign output to variable which inside a array....
www.pastebin.com/GtqY4DMH
Im trying to understand the fundamentals of this basic GTK program. I can't figure out how G_Define_Type works.
It looks similar to a function declaration like those in C
This is a date class in CPP, I didn't use CPP strings because I'm not sure if I'm allowed to. It seems to work fine, but I'm wondering if there are any errors I didn't detect. Note that I won't be using this class on its own, it'll be part of another class (it'll serve as a birthdate or something...
So i have this code in MatLab(below.) The code looks at the linear function
y=kx+f, where f=asin(0.376),and k=2*PI, and calculates the smallest positive integer x in which kx+f is within som error to its closest integer. The code does this for error values chosen as 0.1, 0.01, 0.001,... all the ...
I haven't used C++ for quite a while and wanted to practice a bit, so I decided to start simple and work through the Advent of Code 2017.
This is my solution to Part 1 of the Day 1 exercise "Inverse Captcha":
The captcha requires you to review a sequence of digits (your puzzle
input) and f...
Well, it's got to be taking it's power from somewhere. Usually, flipping the switch breaks the circle so the current won't flow. Current obviously found a way to flow anyway, so you might have a short somewhere.
@skiwi A breaker is basically a big switch, it will throw itself in a situation of overcurrent. Just make sure not to flip it a hundred times a week and preferably disconnect all heavy users before flipping.
Just don't touch anything that's made out of metal and you'll be fine. Modern breakers are super safe.
@OmairShafiq I would take the time to code review your own code and find ways to minimize your code if it's hundreds of lines, my rule of thumb personally, is if I have more than 10 lines of code , I try to minimize it by creating smaller functions as well as trying to locate or reduce redundant calls which is part of Refactoring — MethodMan49 secs ago
Yes. It is, in fact, one of the most basic arbitrages.
I haven't looked too hard at it, mostly because I assume it's already being done by people with far more domain expertise, knowledge, and expensive latency-reducing hardware than myself.
The most basic arbitrage being a 3-pair chain on the same exchange. E.G. EUR -> ETH, ETH -> BTC, BTC -> EUR, where the ratios are out of whack enough to give you free Euros.
@skiwi Yes. This is why it's more involved than same-exchange arbitrages. You need to buy it on one exchange, send it to another and then sell it. In practice, what you'll do is hold balances at both exchanges, buy/sell simultaneously, and then send the stuff you bought to the exchange you sold it at to replace it, which takes time and network fees.
Which is also why, for serious arbitrageurs, they'll hold a large enough stack on each exchange that they actually exhaust the arbitrage before they exhaust their stack, and then only have to settle up between exchanges infrequently-if-ever.
Anyway, back to studying. See you all some other time ^^
If this code works fine, then this question is off topic on Stack Overflow, but may be good for our sister site Code Review. — Joe C20 secs ago
I think a good start would be to format your code and maybe add comments or more informative variable names. But I think this question would be more suitable on Code Review Stack Exchange — Fubar56 secs ago
Good question but not a good fit for Stack Overflow. Perhaps Code Review would be better, but check if it's on-topic there first. — DavidG53 secs ago
I'm voting to close this question as off-topic because questions asking to review working code should go to codereview.stackexchange.com — GhostCat32 secs ago
I needed a data structure offering both poll returning the smallest element and fast contains. A PriorityQueue has slow contains, so I adapted a SortedSet as a queue. I wonder, if I did it right and if using an iterator would be better.
I'm not sure, if I'm bending the semantics of offer too far...
I am writing a kind of text-based Tamagotchi game. I just made the basic structure and want to make sure my foundation is correct. The program features some global objects, for example pet and user. These objects should be able to interact which each other. I store these objects in a controller o...
@skiwi I would be wary of Bitcoin at current price levels. It's got a $300 billion market cap, whilst I could totally see it going 10x from here, I don't think 100x is at all feasible.
@Mast Wall St can now bet on it using a vehicle that has regulatory backing. So the total amount of money that is now free to enter the space (long or short) is about to get much, much bigger.
Problem statement:
Given a 2D board and a list of words from the dictionary, find all words in the board.
Each word must be constructed from letters of sequentially adjacent cell, where "adjacent" cells are those horizontally or vertically neighboring. The same letter cell may not be use...
I have some code for a assignment where the main marks are awarded based on efficiency. The program uses a given wordgenerator which generates random words and adds them to a user-made data structure. You also have to provide 3 methods, one to add a item, one to remove a item and one to count how...
Hmm, I'm bright enough now to come up with ideas, but not enough to actually think through them... What if I put limit orders to buy 0.5% below market and once I have acquired the cryptocurrency I put limit orders to sell 0.5% above market... what do I miss?
Say, for instance, ETH is $10, and you sell at $11 and put in an order to buy at $9. But then they announce the EEA and the price goes to $100 almost overnight and never comes down again.
:)
So i have this code in MatLab(below). The code looks at the linear function f(x)=ax+b, where b=asin(0.376),and a=2*PI, with the purpose of finding values of x such that f(x) is "close" to being an integer. The code does so in the following manner: First we define an error E=0.1, and then we f...
Given:
data NonEmpty a = NonEmpty a (Array a)
I completed the following exercise from PureScript by Example:
Write a Foldable instance for NonEmpty. Hint: reuse the Foldable instance for arrays.
instance foldableNonEmpty :: Foldable NonEmpty where
foldr f acc (NonEmpty a as) = foldr f ...
@skiwi The market dropped 5% in the last second. Is that because somebody fat-fingered a sell order (in which case you should buy because the price is about to stabilise again) or is it because the price is about to drop 90% (in which case buying would lose you a lot of money)?
@Kaz Right, but that is just investing into Bitcoin... Assume you buy BTC now and look at it in 3 days time, or assume your bot buys BTC now and look at it in 3 days time, then the hypothesis is that the bot made profit over not doing anything at all
@Kaz Could be interesting but not looking at it right now, not a lot of time
@skiwi It doesn't really matter what the asset is. Your strategy (buying below current market price, expecting to sell above market price) has the same risk/reward trade-off no matter what market it's in. It's just that some markets have bigger moves than others.
In, say, Apple shares on NASDAQ. You might be constantly buying 0.05% below market price, and selling 0.05% above, and a 5% move would absolutely destroy your profitability.
in crypto, you might do the same thing, but multiply all those numbers by 100 ^^
Can someone review my Tic Tac Toe Code? I tried to make it as compact as I could. What could I improve?
I save the state of the buttons by adding freezesText="true" in the XML file. This is for saving the state on orientation change.
public class MainActivity extends AppCompatActivity implement...
:41655706 well, yes, but if you buy something, and the price rises, you also make money. Whereas if the price rises, the bot will sell out early (expecting the price to mean-revert) and miss out on those gains.
So you can either buy-and-hold, in which case you make money if it goes up, and lose money if it goes down. Or do various forms of market-making, where you make money if the price bounces up/down around some stable equilibrium point, and lose money if the price moves sharply one way or the other.
Write a method mirror that accepts a stack of integers as a
parameter and replaces the stack contents with itself plus a mirrored
version of itself (the same elements in the opposite order). For
example, suppose a variable s stores the following elements:
bottom [10, 50, 19, 54, 30,...
@Duga Rolled back. Part of the invalidation will have to stand, since it wasn't his first. The old one stays because there has been another answer in the meantime.
Which is exactly the reason we are against such invalidations, but it's too late now.
I am very new to Node.js and Express and have been doing a "learn as I go" scenario by building craigslist style app where people can bid on jobs.
I am looking to see if this is the best approach for appending a bid to a job.
var _ = require('underscore');
var request = require('request');
va...
I forgot to test the circuit on this before I dropped it back in, but I think these two caps are in parallel, and I think the two empty slots below them are as well, so I could have easily put in a 1000uF and 470uF to make up the proper rating, but I managed to squeeze these in pretty well.
@Mast Indeed, I ordered them after investigation, and I didn't have parts to compare to anymore when I ordered them. ;)
I need to get a good caliper and then I can make sure next time to order the right parts.
I remember a situation where I only had smaller caps. Luckily the legs of those caps are usually long enough to extend a bit. It wasn't pretty, but good enough for an emergency repair. It got fixed by a proper cap less than 24h later.
This is a snippet from a program that filters through image boards and downloads the images based on certain criteria. I am printing the results of the filter to a table on the screen, but I am having trouble printing the table with a full row of 0's when my results are empty.
for group ...
I'm working over project for my studies. It's a simple program about brewing coffee. I'm thinking about solution for showing single parameter in GUI. As follows:
I have a source brew parameter class:
public abstract class CoffeeParam { /* It's empty */ }
public class CoffeeParam<T> : CoffeePara...
I got this error message on windows 10 with ms office 2016(not activated) other OS or ms office are work while generate excel sheet.
I can't use collection, counter, or dictionary
input is
pooiiiuuuuyyyyyttttttrrrrrrreeeeeeeewwwwwwwwwqqqqqqqqqq
the output is
Sorted frequency of letters in code text:
('Q', 10) ('W', 9) ('E', 8) ('R', 7) ('T', 6) ('Y', 5) ('U', 4) ('I', 3)
('O', 2) ('P', 1) ('A', 0) ('B', 0) ('C', 0) ('D',...
a password protected file or folder like in "Microsoft power-point" file a password can be set. and after set a password if this file opened ten a password window comes and required a password.
boolean palindromeRearranging(String inputString) {
int[] letters = new int[26];
for(int i = 0; i < inputString.length(); i++){
letters[inputString.charAt(i) - 'a']++;
}
int odds = 0;
for(int i = 0; i < 26; i++){
if(letters[i] % 2 == 1){
odds++;
}
}
if(odds % 2 == inputString....
i found this code at codewar, as i'm new to programming, can anone help me, explain this to me
function sumTwoSmallestNumbers(numbers) {
var [ a, b ] = numbers.sort((a, b) => a - b)
return a + b
}
what is [a, b] here, what it called, how it assign output to variable which inside a array....
I haven't used C++ for quite a while and wanted to practice a bit, so I decided to start simple and work through the Advent of Code 2017.
This is my solution to Part 1 of the Day 1 exercise "Inverse Captcha":
The captcha requires you to review a sequence of digits (your puzzle
input) and f...
Problem statement:
Given a 2D board and a list of words from the dictionary, find all words in the board.
Each word must be constructed from letters of sequentially adjacent cell, where "adjacent" cells are those horizontally or vertically neighboring. The same letter cell may not be use...
Given:
data NonEmpty a = NonEmpty a (Array a)
I completed the following exercise from PureScript by Example:
Write a Foldable instance for NonEmpty. Hint: reuse the Foldable instance for arrays.
instance foldableNonEmpty :: Foldable NonEmpty where
foldr f acc (NonEmpty a as) = foldr f ...
Can someone review my Tic Tac Toe Code? I tried to make it as compact as I could. What could I improve?
I save the state of the buttons by adding freezesText="true" in the XML file. This is for saving the state on orientation change.
public class MainActivity extends AppCompatActivity implement...
Write a method mirror that accepts a stack of integers as a
parameter and replaces the stack contents with itself plus a mirrored
version of itself (the same elements in the opposite order). For
example, suppose a variable s stores the following elements:
bottom [10, 50, 19, 54, 30,...
I am very new to Node.js and Express and have been doing a "learn as I go" scenario by building craigslist style app where people can bid on jobs.
I am looking to see if this is the best approach for appending a bid to a job.
var _ = require('underscore');
var request = require('request');
va...
This is a snippet from a program that filters through image boards and downloads the images based on certain criteria. I am printing the results of the filter to a table on the screen, but I am having trouble printing the table with a full row of 0's when my results are empty.
for group ...
