How to reverse an array of a table?

Question

Reversing an array with explanation, mainly the looping part?

Answer 1

suppose array is of n elements...
int a[10],n,t;
// read n here
for(int i=0;i<n/2;i++) //1
{
t=a[i]; //2
a[i]=a[n-i]; //3
a[n-i]=t; //4
}

the reversing is done by swapping first and last element, second and second last element, like that...
there for loop only need to work upto half of the array

in 2,3 and 4 swapping is being done...