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I have wrote a kNN code as follows. But it is very slow. I want to get a exact k-nearest-neighbor, not the approximate ones, so I didn't use the FLANN or ANN. Could you give me some advice to speed up this code? Thanks.
struct Pair{
int id;
double value;
Pair(int id,...
This is certainly going to make everybody frown, but let me lay down the idea here...
I know there's the bounty system for rewarding awesome answers, but 50 or 100 points is a rather intense rep hit to take when all you want is to reward an outstandingly good post.
How many times have you read ...
background
A little over a year ago I was given the creative freedom to develop on the side of my primary responsibilities. I want to move into development, but am not currently in that role. I was given the resources to develop a PHP application that handled a lot of the reporting functions for...
more of my code to review! It works just fine, however the assignment was to write a recursive "function". Curious if this should count.
Any comments / suggestions/ stuff I should watch out for... appreciated. Thanks for taking a look.
#include <iostream>
#include <functional>
#include <cctype>...
I'm trying to find all paths from vertex A to N in my graph.
The Python to do this is:
def find_all_paths(graph, start, end, path=[]):
path = path + [start]
if start == end:
return [path]
if not graph.has_key(start):
return []
paths = []
for node in graph[sta...
[Please don't comment on using Turbo C++. I know that it's obsolete but we are taught this way only.]
#include<fstream.h>
#include<conio.h>
void main()
{
clrscr();
char ch;
ifstream read;
read.open("Employee.txt");
ofstream write;
write.open("Another.txt");
while(!read.eof())
{
r...
I am looking for a review regarding C++ streams behaviour conformance.
I have made this win32_file_streambuf so that I can use it in log4cplus project. I basically need it so that log files can be renamed when they are still opened by another process logging into the same file. This can be done ...
I have just wrote this Pong game in Pygame:
import pygame
import sys
import math
class Ball(object):
def __init__(self, x, y, width, height, vx, vy, colour):
self.x = x
self.y = y
self.width = width
self.height = height
self.vx = vx
self.vy = ...
So, I was working on a problem set and I came across this problem:
"Assume s is a string of lower case characters.
Write a program that prints the longest substring of s in which the letters occur in alphabetical order. For example, if s = 'azcbobobegghakl', then your program should print
Long...
Can anyone tell me what am I doing wrong? It's a simple pay calculator that multiplies hours and wages to get the total pay. Can't seem to get the validate portion right though.
<?php
function inputRequired($fieldName) {
echo "The field \"$fieldName\" is required.<br />";
}
function validateIn...
This is my first post to code review. I have already asked this question in stackoverflow and was asked to repeat here. Here is the link http://stackoverflow.com/questions/19607062/string-formatting-using-c-c
Recently I was asked in an interview to convert the string say "aabbbccccddddd" to "a2b...
I need to optimize this piece of code I made because this will run in real-time mode.
Its a matrix shifter that pulls downward and will neglect any transparent element.
Code:
void shiftDown(int col)
{
int x = 0; //transparent element
int N = 5; //size
int i,j,k,l;
for (i = N...
I recently had programming challenge. The challenge was to create the N grams the description as follows:
Trigram analysis is very simple. Look at each set of three adjacent words in a document. Use the first two words of the set as a key, and remember the fact that the third word followed that ...
I have a method which checks all of its surrounding squares and returns the number of bombs around it. The problem is it uses a long list of if statements, which is pretty ugly and probably inefficient.
public int countArround(){
int bombNum = 0;
//x=0 y=1 works
if(((SmartSqu...
Maze, assumption - single point of entry and a single point of exit. Also directions to travel in maze are North South East West. Request for optimization and code cleanup.
import java.util.LinkedHashSet;
import java.util.Set;
final class Coordinate {
private final int x;
private fin...
