An integer is a whole number negative, positive, or zero. i.e ... -2, -1, 0, 1, 2 ... Use this tag for questions about using, storing or manipulating integers.
11
votes
4answers
360 views
Counting number of 1's and 0's from integer with bitwise operation
Is there a better way of doing this?
// Definition: Count number of 1's and 0's from integer with bitwise operation
//
// 2^32 = 4,294,967,296
// unsigned int 32 bit
#include<stdio.h>
int ...
0
votes
0answers
36 views
C program mysteriously stops giving results [closed]
I'm actually working on a projecteuler.com problem (#12 specifically) and I thought I had this nailed when I wasn't getting any compile errors.
It runs and gives me several results that appear to be ...
3
votes
1answer
114 views
Simpler method to detect int overflow
To detect int overflow/underflow in C, I use the below code.
What might be simpler and portable code?
(That is: fewer tests)
Assume 2's complement and don't use wider integers.
int a,b,sum;
sum ...
-3
votes
2answers
60 views
I need help with integer division in PHP [closed]
I had a bit of code in BASIC I needed to convert, but specifically this following line has me stumped atm:
NRSLATHOR=INT(LSLATVER/PITCHVER-.8)
In PHP I'm attempting to do an integer division but I ...
0
votes
0answers
36 views
Integer and ArrayList issues [migrated]
This program is meant to prompt a user for address information. Identify the address that would come first by zip code, and then print that address.
I'm having a couple of issues. When I try to ...
2
votes
1answer
107 views
Writing integer to binary file
I wrote a python function that writes a integer to a file in binary form. But are there any ways that I can reduce the number of steps, is there a more efficient way to write a integer to a file?
def ...
3
votes
1answer
232 views
Breaking down a dollar amount into bill and coin denominations
I've started coding C++ again after a 6 month break to prepare for a class I'm taking this quarter. I found this idea and thought it would be fun to try and code.
I originally started with input as a ...
4
votes
1answer
152 views
What do you think about this uint64 random generator?
I've looked for a good method to generate an integer inside a range of values. I think using modulo is not a good method because the values are not perfectly mapped in the range. So I mapped the ...
4
votes
3answers
347 views
I'm wondering if I'm doing this whole Haskell thing right
There may not be a "right" way to do it, but I've come to perceive Haskell as the kind of language, where literacy of the proposed programming paradigm is crucial to writing proficient code in the ...
2
votes
2answers
219 views
Determine if an int is within range
Can I somehow make this a bit cleaner using Math.[Somthing], without making a method for it !?
int MaxSpeed = 50;
if (Speed.X > MaxSpeed)
Speed.X = MaxSpeed;
if (Speed.X < MaxSpeed * -1)
...
0
votes
2answers
672 views
Spotify's “Reversed Binary Numbers” Problem [closed]
I wrote some Java code for Spotify's Reversed Binary Numbers puzzle and I tested it on my machine and I am almost positive that it behaves as expected. However, when I send it to puzzle AT spotify.com ...
1
vote
1answer
64 views
How to improve this functional python trial division routine?
The following functional program factors an integer by trial division. I am not interested in improving the efficiency (but not in decreasing it either), I am interested how it can be made better or ...
2
votes
2answers
58 views
NSArray and NSNumber-int conversions
I have a textView which is displaying a string. I also have an array which keeps track of where every line begins, it stores the "start index" or NSRange.location for every line.
However, when text ...
2
votes
1answer
908 views
Android - get int array from database Cursor
I find this code quite ugly, but in fact, I don't see any finest way to achieve the goal.
private static final String TABLE_NAME = "table_name";
private static final String[] allNeededColumns = ...
4
votes
2answers
259 views
Improving a custom integer class 2.0
As sort of a follow up to my previous question from a year ago, what are some suggestions you can think of that will improve this code, whether is directly programming related or algorithm related? I ...
6
votes
2answers
233 views
What can be done to improve a recursive method?
So I was experimenting with lists, sets, and finally maps when I spotted a pattern in my code to make it recursive. Now I haven't used recursion much in the past or at work and I was very excited to ...
2
votes
2answers
446 views
Improving a custom integer class
How can I improve upon this integer class that I wrote? I am/will be using this for some calculation intensive crypto algorithms, mainly POLY1305AES. I might even write RSA using this. I know that ...
5
votes
4answers
241 views
Adjusting integer based on multiple elements in int array
I'm working with the following code which adjusts an int based on multiple elements of an integer array. I am wondering if there's a cleaner, easier-to-read construct for this:
int Blue = 0;
int[] ...
4
votes
1answer
485 views
Speed optimising JavaScript code
I've written this following rather naïve branch-and-bound based IP solver. My question is whether there are any obvious JavaScript optimisations that could speed it up? I am not looking for ...
