较简单的思路

解题思路:

注意事项:

参考代码:

#include<stdio.h>

int main() {

int N,a[100],b[100];

scanf_s("%d", &N);

int i,j;

int max;

//读取初始随机数

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

{

scanf_s("%d", &a[i]);

getchar();

}

//由小到大排序

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

{

for (j = 0; j < N; j++)

{

if (a[i] > a[j]&&i<j)

{

max = a[i];

a[i] = a[j];

a[j] = max;

}

}

}

int count = 0;

int m = 0;

//消除重复的数，如果不重复，添加到新数组

for (i = 0; i < N-1; i++)

{

if (a[i] != a[i + 1])

{

count++;

b[m] = a[i];

m++;

}

}

//弥补数组最后末尾的数无法添加到新数组问题

if (a[N-1] != a[N - 2]){

b[m] = a[N-1];

count++;

}

//输出结果

printf("%d\n", count);

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

{

printf("%d ", b[i]);

}

}