#include <stdio.h>
#include<math.h>
#define T(x) int a##x
#define P(x) scanf("%d",&x)
#pragma warning(disable:4996)
int c,t;
int m;
int main()
{
int n, t=0;
int k;
int d, e;
int f[1000];
scanf("%d\n", &n);
for (k = 1; k <= n; k++)
scanf("%d", &f[n]);
for ( k = 1; k <= n; k++)
if (f[k] >=m)
{
m = f[k];
}
d = m;
for (k = 1; k <= n; k++)
if (f[k] <= n) n = f[k];
e = n;
printf("%d\n", d);
printf("%d\n", e);
printf("%d", d-e);
}
n没有初始化,应该给一个较大的值初始化