interchanges the odd and even components of an array.
#include <stdio.h>
int main()
{
int size;
printf("Enter size of array:");
scanf("%d", &size);
int arr[size];
int i, x;
for(i=0;i<size;i++)
{
scanf("%d", &arr[i]);
}
for(i=0;i<size-1;i=i+2)
{
x=arr[i];
arr[i]=arr[i+1];
arr[i+1]=x;
}
for(i=0;i<size;i++)
printf("%d ", arr[i]);
return 0;
}
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