C++ 排序并去重随机数（无vector） - 算法实现与代码示例

#include "iostream"\n#include "set"\nusing namespace std; \n\nint main() {\n int N; \n cin >> N; \n set nums; \n for (int i = 0; i < N; i++) {\n int num; \n cin >> num; \n nums.insert(num); \n } \n \n cout << nums.size() << endl; \n for (int num : nums) {\n cout << num << " "; \n } \n cout << endl; \n \n return 0; \n}