Insertion Sort

#include<iostream.h>
main()
{
int a[20],i,t,j,n,k,c;
cout<<"enter the no.of.elements:\n";
cin>>n;
cout<<"Enter the elements:\n";
for(i=0;i<n;i++)
cin>>a[i];
for(i=0;i<n-1;i++)
{
j=i+1;
t=a[j];
while(j!=0&&t<a[j-1])
{
t=a[j];
a[j]=a[j-1];
a[j-1]=t;
cout<<"iteration:"<<++c;
for(k=0;k<n;k++)
cout<<"  "<<a[k];
cout<<"\n";
j--;
}}
cout<<"\n the sorted elements are:";
for(i=0;i<n;i++)
cout<<a[i]<<"\n\n ";