hi I'm new
I got some questions about bubble-sort, so I registered here.
I'm currently working on this program (bubble-sort) so I looked up some example codes and I found this here, which is practically the right thing I'm looking for.

But I have some questions, like

1. How would printf("%2d. Pass: ", i-1); be with cout, since I'm not really familiar with printf as I always worked with cout.

my guess would be cout<<("Pass: ", i-1); but then there is no space between each number

printf("%3d", z[k]); I think it should be cout<<z[k];

2. How would I program this when I want to type numbers myself instead of random numbers.

``````#include <iostream.h>
#include <stdlib.h>
#include <time.h>

void bubble_sort(int n,  int  z[])
{
int i,j,x,k;

for (i=2; i<=n; i++)
{
for (j=n; j>=i; j--)
if (z[j-1] > z[j])
{
x       = z[j-1];
z[j-1]  = z[j];
z[j]    = x;
}

printf("%2d. Pass: ", i-1);
for (k=1; k<=10; k++)
printf("%3d", z[k]);
printf("\n");
}
}

int main()
{
int i,k,number;

srand(time(NULL));

for (i=1; i<=8;i++)
number[i] = rand()%100;
printf("------  before bubble_sort ------------------------------\n");
for (k=1; k<=8; k++)
printf("%3d", number [k]);
cout<<("\n\n");
bubble_sort(8, number);
printf("------ after bubble_sort ------------------------------\n");
for (k=1; k<=8; k++)
printf("%3d", number [k]);
cout<<("\n");

}``````

oh and I get 02293616 or sth. like that on each pass, how can I remove it?

## All 2 Replies

A brief translation from C to C++...

``````#include <iostream>
#include <cstdlib>
#include <time>

void bubble_sort(int n,  int  z[])
{
int i=0,
j=0,
x=0,
k=0;

for (i=2; i<=n; i++)
{
for (j=n; j>=i; j--)
{
if (z[j-1] > z[j])
{
x = z[j-1];
z[j-1] = z[j];
z[j] = x;
}
}

cout << "Pass: " << i-1;

for (k=1; k<=10; k++)
{
cout << z[k];
}

cout << endl;
}
}

int main()
{
int i=0,
k=0,
number;

srand(time(NULL));

for (i=1; i<=8;i++)
{
number[i] = rand()%100;
}

cout << "------  before bubble_sort ------------------------------\n";

for (k=1; k<=8; k++)
{
cout << number[k];
}

cout << endl << endl;

bubble_sort(8, number);

cout << "------ after bubble_sort ------------------------------\n";

for (k=1; k<=8; k++)
{
cout << number [k];
}

cout << endl;

}``````

2. How would I program this when I want to type numbers myself instead of random numbers.

If I do this, I would have done all of your homework for you. Give it a try yourself. Show us what you come up with.

well yeah that's what I thought it would be, a confirmation for my example would have sufficed.

If I do this, I would have done all of your homework for you. Give it a try yourself. Show us what you come up with.

if I would know how to do it or have an example, I'd wrote it here that's why I was asking.

I know that this here isn't needed

``````srand(time(NULL));

for (i=1; i<=8;i++)
{
number[i] = rand()%100;
}``````
Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, learning, and sharing knowledge.