C++ 去重算法：高效移除重复数字

#include \n#include <unordered_set> \nusing namespace std; \n\nint main() { \n int n; \n cin >> n; \n unordered_set numSet; \n for (int i = 0; i < n; i++) { \n int num; \n cin >> num; \n numSet.insert(num); \n } \n\n for (auto num : numSet) { \n cout << num << " "; \n } \n cout << endl; \n return 0; \n}