Bubble Sort

Question

hi
would you help me to find out what are my mistakes in this code in c++

#include <iostream>
using namespace std;

int index(int, int[],int);
int main()

{
int a[]={22,44,66,88,44,66,55};
{
cout << "index (44,a,7),"<<index (44,a,7)<<endl;
cout << "index (50,a,7),"<<index (50,a,7)<<endl;
}
int index(int x, int a[],int n);
{
int x,n,i;
for(int i=0; i<n;i++)
if (a[i]==x)

return i;
return n;

}

Answer 1

I think you are bit confused because your code looks like for searching not bubble sort even though it's not correct either(some syntax errors).

For bubble sort Rajeeb already answered.

Answer 2

//this is a working example

#include<iostream>

using namespace std;

int main()
{
int a[50],n,i,j,temp;
cout<<"Enter the size of array: ";
cin>>n;
cout<<"Enter the array elements: ";

for(i=0;i<n;++i)
cin>>a[i];

for(i=1;i<n;++i)
{
for(j=0;j<(n-i);++j)
if(a[j]>a[j+1])
{
temp=a[j];
a[j]=a[j+1];
a[j+1]=temp;
}
}

cout<<"Array after bubble sort:";
for(i=0;i<n;++i)
cout<<" "<<a[i];

return 0;
}

Answer 3

Thank you for the answer Rajeeb.
it was helpful.