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I tried to make a program to find a string whose MD5-hash starts like the digits of pi, where dot is omitted. Is there a faster way to do it than this:
import hashlib
import random
import string
n = 1
while True:
word = ''.join(random.choice(string.ascii_lowercase) for _ in range(20))
if...
0
I'm creating a small database for an airline. I don' think my syntax is off, but something is going wrong in table creations/test data insertion. I'm using the Oracle DBMS and SQL syntax. I'm not looking for anyone to writecode for me, but I'm very constrained for time and need clear indications ...
With the following data in a table,
+----+-----------+-----------+---------+
| id | name | parent_id | prev_id |
+----+-----------+-----------+---------+
| 1 | Section 1 | NULL | NULL |
| 2 | Item 1.1 | 1 | NULL |
| 3 | Item 1.2 | 1 | 2 |
| 4 | Item 1....
I made this code which inserts a string at the specified position
void insertar(FILE * archivo, unsigned int pos, const char *nueva_cadena, unsigned int longitud_cadena) {
char *buffer = malloc(longitud_cadena);
fseek(archivo, pos, SEEK_CUR);
fread((void *)buffer, sizeof(char), lo...
No, they're completely wrong and you're absolutely right. That builder model is just silly. It's none of the Person's business where the constructor arguments come from. The builder is just a convenience for users and nothing more.
This is a follow-up on the post: zp-Tree library to represent trees as nested arrays
I have made modifications based on the feedback received on the previous post, hence I request another review on the modified code if ok.
I created a jsfiddle here: https://jsfiddle.net/yc6z3v13/
/**
* zp-T...
The goal is to return a boolean as to whether the 2D search area exists in the larget 2D grid.
My logic is as follows:
Find the first occurance in the grid that equals the target grid
Find all connecting cells that exist and are in target grid
If the test grid doesn't have the current cell a...
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I want a matrix that can grow dynamically and build up a structure in RAM as input arrives from standard input och terminal (shell). First I tried with a matrix like A[nrows][ncols] but I changed to the ** A[n] and I want to refactor so that there are fewer constants and that malloc will be safe...
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I've just started out using C#. I've used Scratch (drag and drop programming for kids) for quite some time. Since Scratch didn't have classes and methods i have a feeling this code could be a lot more streamlined, neat, efficient, more read-able, shorter and in general just better.
Console Snake ...
Can you please point out any problems with this C forward list with remove node functionality?
I believe this can be way simpler ( removeNode function ) but I somehow cannot grasp it
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
struct node
{
int val;
struct node* next;
};
typ...
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The other day we got the question Python - Print the average of a list which is a value in a dictionary [on hold].
When I came across this question it was being closed for a custom close reason, I can't find it, but the comment they made is:
I'm voting to close this question as off-topic beca...
0
0
I have implemented Quicksort in Java:
import java.io.*;
import java.util.*;
public class QuickSort{
static void quickSort(int[] numbers, int startPoint, int endPoint) {
int pivot = numbers[startPoint];
int left = startPoint+1;
int right = endPoint;
int currentPoint = startPoin...
I am currently working on a project and I just wrote a piece of it that requires a lot of array manipulation. Given a text input I want to expand it to fill the number of rows and columns I have. I worked out a solution but I am concerned that I am creating too many arrays in my solution. I am...10
Code Review is a community where programmers peer-review your working code to address issues such as security, maintainability, and performance. Questions about code that has not yet been written, code that does not work as intended, or code that the author does not understand are off-topic, as...
I want an istream that you can safely peek arbitrarily many characters from. This works as far as I can tell, but I am unsure if this is really "the right way" to do it since the iostream library is pretty cryptic to me. All comments welcome:
class peekbuf : public std::streambuf
{
std::stre...00:00 - 17:0017:00 - 23:00
