打卡7.20

题目：将一个数组逆序输出

程序:

#include <stdio.h>

#define N 7

int main(void)

{

int a[N]={1,2,3,4,5,6,7};

int i,temp;

printf("The early array elements  are:\n");

for(i = 0; i < 7; i++)

printf("a[%d]=%d\n",i,a[i]);

for(i = 0; i < N/2; i++)

{

temp = a[i];

a[i] = a[N-i-1];

a[N-i-1] = temp;

}

printf("The last array elements  are:\n");

for(i = 0; i < 7; i++)

printf("a[%d]=%d\n",i,a[i]);

return 0;

}

打卡7.20