Bubble Sorting Code

#1

CODE:
#include
using namespace std;
void bubblesort(int a[],int n){
for(int i=0;i<n;++i)
{ cout<<endl;
for(int j=0;j<n-i;++j)
{
if(a[j]>a[j+1])
swap(a[j],a[j+1]);

}

for(int i=0;i<5;++i)
cout<<a[i]<<" “;
}
}
int main()
{
int a[5]={637,937,64,20,748};
bubblesort(a,5);
for(int i=0;i<5;++i)
cout<<a[i]<<” ";
return 0;
}

PROBLEM ENCOUNTERED: The value 937 is getting converted to 0.

NOTE: I used cout in the function to see what was happening at every step.

#2

Hello @poojagera,

The reason for the incorrect answer is invalid index.
for i=0 and j=n-1 (both are valid index)
j+1 = n (invalid index)
It might be possible that a[n] contains 0.
So, 0 being smaller to 937.
swapping is being done.
Hence, leading to an incorrect answer.

Solution:

  1. for(int i=0;i<n-1;++i)
  2. for(int j=0;j<n-1-i;++j)

Hope, this will help.
Give a like if you are satisfied.

1 Like
#3

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1 Like