A27227. $#include <iostream> using namespace std; unsigned short f(unsigned short x) { x ^= x << 6; x ^= x >>8; return x; } int main() { unsigned short x; cin >> x; unsigned short y = f(x); cout << y <<endl; …$

判断题困难

知识点

位运算异或运算函数调用

题目描述

#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：当输入非零时，输出一定不为零。(    )

正确

错误

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