题目(材料题)
#include <iostream>
using namespace std;
unsigned short f(unsigned short x) {
x ^= x << 6;
x ^= x >> 8;
return x;
}
int main() {
unsigned short x;
cin >> x;
unsigned short y = f(x);
cout << y << endl;
return 0;
}
假设输入的 x 是不超过 65535 的自然数，完成下面的判断题和单选题:
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