C/C++ :: Sorting Numbers Through Pointers?

May 5, 2014

I'm writing a simple program to sort numbers through use of a pointer. I've always been bad with pointers, and I tried to use a typical temp value to hold the value, but i feel like I am over doing it.

#include <iostream>
using namespace std;
void SortTests(int *, int);
int main() {
int *ptr;
int tests;

[code]....

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C :: Sorting Arrays Of Pointers - Assigning Data To Gene

Feb 11, 2013

Code:
typedef struct {
name_t name;
float beta[beta_num];
} gene_t;

[Code] ....

Is gene an array of address ? How come the compare function doesn't work ?

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C :: Sorting Four Numbers

Mar 2, 2013

I'm trying to take a users input and break it up into four separate numbers, then take those numbers and arrange them from smallest to largest.So far I can't seem to get them working right.

Code:

# include <stdio.h>main ()
{
int inputVariables[4]; //where userinput goes after being broken up
int arrangedValues [4];// the user values arranged lowest to highest
int i;
int j;
}

[code].....

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C++ :: Sorting Numbers From File

Apr 6, 2013

I have been working on this program for days now and for some reason my program will not write to my third file. It will call all of the integers that I need it to call but it will not write them out to a file. How to use my loop correctly.

#include <iostream>
#include <fstream>
using namespace std;

int file1();
int file2();
int file3(int);

[Code] ....

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C++ ::  Sorting Pairs Of Numbers Using AMP

Dec 15, 2014

I need numbers next to each other to be sorted (in increasing order).On the CPU I'd do something like this:

for(int i=0; i < length; i+=2) {
if(a[i]>a[i+1]) {
switch places...
}
}

But how would I do this using parallel_for_each (C++AMP) ? I need this for some algorithm that works with very long arrays and I think GPU would do this faster than CPU (even if I use all threads).

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C++ :: Sorting Alphabets And Numbers

Apr 20, 2014

My program reads a string of characters. Prints all occurrences of letters and numbers, sorted in alphabetical and numerical order. Letters will be converted to uppercase.Other characters are filtered out, while number of white spaces are counted.

The problem is it crashes when i run the program. Here is my code

#include <iostream>
const int SIZE = 100;
using namespace std;
int main() {
char *pStr, str[SIZE] = "", newStr[SIZE] = "", ch;
int count = 0, i = 0, j;

[Code] .....

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C++ :: Getting Correct Numbers After Sorting

May 10, 2014

I'm trying to make a number sorting program with other features, but the numbers are all wrong.

#include <iostream>
#include <iomanip>
#include <fstream>
using namespace std;
void readData(int list[], int size);
int main() {
int size = 50;
int scores[50] = {0};

[Code] ....

Input.DAT

376 389 450 735 600 576 612 700 450 628 778 389 667 500 475 550 687 791 829 344
549 476 400 587 535 657 789 583 340 764 422 826 566 436 565 834 533 423 837 701
847 521 746 356 582 465 493 593 425 421

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C++ :: Sorting Names And Numbers And Also Using Templates

May 7, 2013

For my project I have to sort 5 numbers and 5 names using a template bubble sort. I have one header for the numbers, and one for the names. This is what I have so far for my testing page:

#include "Floatheader.h"
#include "Nameheader.h"
#include <string>
int main ()
myFloat obj1;
myFloat obj2( 2.2, 5.1);

[Code] .....

I have to create a template to look like this: template<>....with a class inside the arrows. Then, I have to use bubble sort to sort the 5 names and number objects I have created. Sorting the names and numbers and also using templates?

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C++ :: Sorting 3 Numbers By Ascending Orders?

Jan 30, 2015

We've only covered up to Functions and how to use reference variables inside the function parameter.

One of the hw problem that was assigned was to write a void function that takes three parameters( num1, num2, num3) by reference and sorts their values into ascending order, so that num1 has the lowest, num2 the middle value, and num3 the highest value. For example, if user enters: 14, -4, 8, then the output should look like this:

-4
8
14

I've completed the program with a bunch of if/ else if statements but I was wondering if there was a more efficient way to sort the numbers. Bear in mind, we've only covered materials up to functions so I can't use any other new techniques that we haven't cover yet. Here is my code:

// This program will take three int parameters by reference and sorts their value into ascending order
//so that num1 has the lowest value, num2 has the middle value, and num3 has the highest value
#include <iostream>
using namespace std;
// declare function with reference parameter that with sort numbers
void sortNum(int &, int &, int &);
int main ()
{

[Code]....

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C++ :: Number Sorting Program - Getting Correct Numbers

May 10, 2014

I am a beginner at C++, the output is pretty self explanatory. I'm trying to make a number sorting program with other features, but the numbers are all wrong.

Code:
#include <iostream>
#include <iomanip>
#include <fstream>
using namespace std;

[Code] .....

Input.DAT
Code:
376 389 450 735 600 576 612 700 450 628 778 389 667 500 475 550 687 791 829 344
549 476 400 587 535 657 789 583 340 764 422 826 566 436 565 834 533 423 837 701
847 521 746 356 582 465 493 593 425 421

I can't for the life of me figure out why the numbers are all messed up.

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C++ :: Sorting Numbers In Both Ascending And Descending Order?

Sep 7, 2014

What kind of code should i use for sorting numbers in both ascending and descending order? I don't know how to use bubble sorting either, is there another easy way to sort this out?

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C++ :: Sorting Arrays - Int Numbers From Highest To Lowest

Oct 29, 2014

For my program i need to sort my int numbers [5] from highest to lowest but it seems that i made it go from lowest to highest ...

Code:

#include <iostream>
using namespace std;
int main() {
int numbers[5] = {3, -6, 10, 1, 130};
int counter1, counter2, tempNum;
//Highest to Lowest

[Code] ....

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C/C++ :: Sorting Numbers In Array From Largest To Smallest?

Mar 16, 2014

I'm trying to sort the numbers in an array from largest to smallest and print it but whenever I run this it does not sort anything at all.

#include <stdio.h>
#define SIZE 10
void Input(const int array1[]);
void Calculations(int array1[], int average);
void Output(int array1[], int average);
size_t counter1 = 0;
int average;
int main( void ) {
int array1[ SIZE ];

[code]....

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C/C++ :: String Of Characters - Sorting Alphabets And Numbers

Apr 20, 2014

My program reads a string of characters. Prints all occurrences of letters and numbers, sorted in alphabetical and numerical order. Letters will be converted to uppercase.Other characters are filtered out, while number of white spaces are counted.

the problem is it crushes when i run the program

Here is my code

#include <iostream>
const int SIZE = 100;
using namespace std;
int main() {
char *pStr, str[SIZE] = "", newStr[SIZE] = "", ch;
int count = 0, i = 0, j;

[Code] .....

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C/C++ :: Sorting Program That Sorts Numbers From Least To Greatest

Jul 5, 2014

I have to write a program that sorts numbers from least to greatest. The way that it has to sort them is:

1) The program assigns the first number to be a minimum
2) If the next number is less than the minimum is now that number and they switch places. (We keep on looking if the number next to it is not smaller)
3) The program also gets the index of the minimum number
4) We keep on going until it is in order.

// Sort.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream>
#include <vector>
using namespace std;
void Sort(vector<int>&input);
int _tmain(int argc, _TCHAR* argv[]){
vector <int> input;

[Code] ....

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C++ :: Sorting Large Numbers Of Vector Of Random Integers Returns All Zero

Jul 31, 2014

I tried to sort a large numbers of vector of random integers with std::sort(), but when the number increases over 10M, std::sort returns all zero in values. Does std::sort have a limitation of input numbers?

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C++ :: Import A File Containing Words And Numbers To Linked List - Bubble Sorting

Feb 16, 2013

I have a code able to import a file containing words and numbers to a linked list, but I also need to sort this linked list alphabetically. I've done research on this involving bubble sorting, but no explanationcan achieve this objective.

Below is the code that can only put the file into linked list:

Code:
#include<iostream>
#include<conio.h>
#include"U:C++WordClass2WordClass2WordClass.cpp"
#include<fstream>
#include<vector>
#include<string>
using namespace std;

[Code] .....

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C++ :: Sorting User Defined Amount Of Random Numbers In Ascending Order

Jan 30, 2013

I want to implement a function into the code below that sorts the user defined amount of random numbers and then sorts them in ascending order.

#include <iostream>
#include <ctime>
#include <cstdlib>
#include <iomanip>
#include <string>

using namespace std;
class IntegerArray {

[Code] ....

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C++ :: Sorting Array Of Numbers Into Ascending Order - Bubble Sort Keeps Crashing

Oct 29, 2014

I am trying to write a program which will sort an array of numbers into ascending order, here is my code

#include<iostream>
#include<cmath>
using namespace std;
int main(){
int array[]={1, 5, 17, 3, 75, 4, 4, 23, 5, 12, 34, 34, 805, 345, 435, 234, 6, 47, 4, 9, 0, 56, 32, 78};

[Code] .....

This compiles fine but when I run the .exe for the first time an error message comes up saying program has stopped working. If I run the program again without recompiling it seems to work as expected.

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C :: Create Array Of Pointers To Pointers Which Will Point To Array Of Pointers

Feb 28, 2014

I'm trying to create an array of pointers to pointers which will point to array of pointers (to strings) I tried

Code:

int i;
char *string[]={
"my name is dave",
"we like to dance together",
"sunny day",
"hello",

[code]...

the app keeps crashing , I don't know how to make the array-elements to point to another array-elements..

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C++ :: Comparing Char Pointers To Integer Pointers

May 21, 2013

I am a little confused while comparing char pointers to integer pointers. Here is the problem:

Consider the following statement;
char *ptr = "Hello";
char cArr[] = "Hello";

When I do cout << ptr; it prints Hello, same is the case with the statement
cout << cArr;

As ptr and cArr are pointers, they should print addresses rather than contents, but if I have an interger array i.e.
int iArr[] = {1, 2, 3};

If I cout << iArr; it displays the expected result(i.e. prints address) but pointers to character array while outputting doesn't show the address but shows the contents, Why??

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C++ :: Dynamic Creation Of Arrays Of Pointers To Arrays Of Pointers

Apr 15, 2013

I'm trying to write a function that takes a 32bit address and a data to store at this address.

I'm wanting to take the 32 bit memory address eg 0x12345678 and split it
into 4 x 2 bytes
12, 34, 56, 78

then each of the 4 entries is at most a 256 entry array.eg
FF, FF, FF, FF

So in this example, 0x12 points to 0x34 in the second array, which points to 0x56 in the third array, which finally points to 0x78 in the last array. This last array holds the actual data.

After successfully doing 0x12345678, say I might get a read for 0x1234AABB. So, the first and second pointers already exist, but I then have to create and write to dynamically created arrays.

The arrays need to have all entries set to NULL so that i know whether to follow the pointers to overwrite a previously entered value or create new arrays and pointers.

It all looks good and simple in the pseudo code I've written up but I'm having trouble coding it. I'm currently trying to deal with the first entry case, ie all array elements are NULL, but I'm getting confused with the pointers and creation of new arrays.

void cpu::store(unsigned int mem_add,unsigned int mem_val) {
int first = (mem_address&4278190080)>>24;
int second = (mem_address&16711680)>>16;
int third = (mem_address&65280)>>8;
int fourth= (mem_address&255);

[Code] .....

A1 has been declared as
int* A1[256] ;

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C++ :: Looping - Input Numbers Until User Types 0 Then Output Product Of Non Zero Numbers

May 1, 2014

How to do the problem below using loop?

Input numbers until the user types a 0, then output the product of the non 0 numbers: e

E.g., if the user types 2 4 6 0, the program should output 48

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C :: Finding Written Numbers In A String And Converting Them To Decimal Numbers

Jun 20, 2013

User enters sentence "The Smiths have two daughters, three sons, two cats and one dog." (The numbers may change depending on what the user chooses to enter. He told us the range would be from zero to nine.) and we have to convert the written numbers within the sentence into actual decimal numbers and print out the new sentence. Ex. The Smiths have 2 daughters, 3 sons...etc.

I have written the following bit of code which reads the string and finds all the "written numbers" but I am not sure how to proceed from there. I am stuck on how to print out the new sentence with the converted numbers as my professor mentioned something about creating the new string using dynamic memory allocation.

Code:
#include <stdio.h>#include <string.h>
int main () {
char A[100];
int length = 0;
int i;

[Code] .....

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C++ :: Find Prime Numbers Between Given Pair Of Numbers And Store Them Into Array?

Apr 18, 2014

Find all the prime numbers between a given pair of numbers. Numbers should be read in from an input file called "numbers.txt" and find all the prime numbers between them. Store the prime numbers in an array, then sort the array from greatest to least. Display the array before and after the sort.

I'm stuck on how to put the prime numbers into an array.

The input file has the numbers 1 & 100.

Here's what I have so far.

#include <iostream>
#include <fstream>
using namespace std;
int main() {
ifstream fin;
fin.open("numbers.txt");

[Code] .....

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C :: Find Duplicate Numbers And Numbers Found Once In Array

Dec 7, 2013

Question: How to find a duplicate numbers and numbers found once in array.

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