明明的随机数 （C++代码）

解题思路:

注意事项:
参考代码:

#include<iostream>

#include<algorithm>

using namespace std;

int main()

{

int N,k,*V;

int sum = 0;

cin >> N;

V = (int*)malloc(sizeof(int)*N);

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

{

cin >> k;

V[i] = k;

}

sort(V, V + N);

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

{

   if (V[i] == V[i + 1])

{

sum++;

}

}

cout << N - sum << endl;;

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

{

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

{

cout << V[i] << " ";

}

}

return 0;

}