依次从键盘输入20个无序整数，删除数组重复元素并按从小到大排序

#include<stdio.h> //依次从键盘输入20个无序整数,删除数组重复元素并按从小到大排序
#include
#include
using namespace std;
#define maxn 1000
int a[maxn];
bool cmp ( int a, int b ) {
return a > b;
}int main()
{
int i, n;
printf ( “请输入要排序的元素个数：” );
scanf ( “%d”, &n );
printf ( “请依次输入%d个数：”, n );
for ( i = 0; i < n; i++ )
scanf ( “%d”, &a[i] );
sort ( a, a + n);
for ( i = 0; i < n; i++ )
printf ( “%3d”, a[i] );
cout<<endl;
int index = 1,b[20],m;//索引
b[0] = a[0];
m = a[0];
for (int i = 1; i < 20; ++i) {
if (a[i] != m) {
m = a[i];
b[index++] = a[i];
}
}
for (int i = 1; i < index; ++i) {
cout << b[i-1] << " ";
}
return 0;
}