#include <cstdio>
using namespace std;
int main() {
// your code goes here
const int size = 5;
int arr[size] = {1,2,3,4,5};
for(int i = 0; i < size;i++)
{
printf("%d ",arr[i]);
}
for(int i = 0; i <size-1;i++)
{
int t = arr[i];
arr[i] = arr[size-1];
arr[size-1] = t;
}
printf("\n");
for(int i = 0; i < size;i++)
{
printf("%d ",arr[i]);
}
}
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