【指针与数组||倒叙输出】
#include<cstdio>
#include<cstdlib>
using namespace std;
int main()
{
int a[100];
int n;
scanf("%d",&n);
for(int i=0;i<n;i++)scanf("%d",&a[i]);
int *p;
p=a;//p=&a[i];
for(int i=n-1;i>=0;i--)printf("%d ",*(p+i));
system("pause");
return 0;
}

【指针与函数】
#include<cstdio>
#include<cstdlib>
using namespace std;
int max(int a,int b){return a>b?a:b;}
int min(int a,int b){return a<b?a:b;}
void work(int* a,int n,int (*updata)(int,int))
{
int ans=a[1];
for(int i=2;i<=n;i++)ans=updata(ans,a[i]);
printf("%d\n",ans);
}
int main()
{
int n;
printf("Please input n:\n");
scanf("%d",&n);
int a[n+1];
printf("Please input n numbers\n");
for(int i=1;i<=n;i++)scanf("%d",&a[i]);
printf("The maximum of this number is : ");
work(a,n,max);
printf("The minimum of this number is : ");
work(a,n,min);
system("pause");
}