#include <stdio.h>
#include <stdlib.h>
#include <time.h>
 
int main(void) {
    int a[10] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
    int index, last, temp;
    srand((unsigned int)time(NULL));
    last = 9; 
    index = rand() % 10;
    temp = a[last];
    a[last] = a[index];
    a[index] = temp;
 
    printf("交换后的数组：");
    for (int i = 0; i < 10; i++) {
        printf("%d ", a[i]);
    }
    printf("\n");
 
    return 0;
}

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