32 lines
694 B
C++
32 lines
694 B
C++
#include <iostream>
|
|
#include <cstdio>
|
|
using namespace std;
|
|
const double eps = 1e-7;
|
|
int cases, m, c, gg;
|
|
double des, xs;
|
|
bool flag;
|
|
int gcd(int a, int b) {
|
|
if (b == 0) return a; else return gcd(b, a%b);
|
|
}
|
|
double abs(double x) {
|
|
if (x < 0) return -x; else return x;
|
|
}
|
|
int main() {
|
|
scanf("%d", &cases);
|
|
while (cases--) {
|
|
scanf("%lf", &des);
|
|
des = 4*des;
|
|
xs = des-int(des);
|
|
flag = true;if (abs(xs)>eps) flag = false;
|
|
scanf("%d", &m);
|
|
for (int i = 0; i < m; i++) {
|
|
scanf("%d", &c);
|
|
if (!i) gg = c; else gg = gcd(c, gg);
|
|
}
|
|
while ((gg&1)==0) gg>>=1;
|
|
if (int(des)%gg!=0) flag = false;
|
|
if (flag) puts("yes"); else puts("no");
|
|
}
|
|
return 0;
|
|
}
|