#include <stdio.h>
#include <stdlib.h>
void swap_array(int n, int *a, int *b);

int main() {
    int i, *P, *Q;
    int a[10] = {100,99,98,97,96,95,94,93,92,91};
    int b[10] = {1,2,3,4,5,6,7,8,9,10};

    P = a;
	Q = b;

	swap_array(10, a, b);

    for (i = 0; i < 10; i++) {
        printf("%d ", P[i]);
        printf("\n");
        printf("%d ", Q[i]);
        printf("\n");
     }
    system("pause");
    return 0;
}
void swap_array(int n, int *a, int *b){
	int t[10] = {0};
	int i;
    for(i=0; i<n; i++) {
    t[i] = a[i];
    a[i] = b[i];
	b[i] = t[i];
	}
}