2020.12.2

\(\mathcal{A}\)
产生随机数。

unsigned long long Genrand() {
	static unsigned long long x = 123;
	x ^= x >> 12;
	x ^= x << 25;
	x ^= x >> 27;
	return x;
}

\(\mathcal{B}\)
多组询问主义数组、变量初始化！