static MInt[] MFactorials(int n)
{
var f = new MInt[n + 1];
f[0] = 1;
for (int i = 0; i < n; ++i)
{
f[i + 1] = f[i] * (i + 1);
}
return(f);
}
static MInt[] MNprs(int n)
{
var p = new MInt[n + 1];
p[0] = 1;
for (int i = 0; i < n; ++i)
{
p[i + 1] = p[i] * (n - i);
}
return(p);
}
static MInt[] MNcrs(int n)
{
var c = new MInt[n + 1];
c[0] = 1;
for (int i = 0; i < n; ++i)
{
c[i + 1] = c[i] * (n - i) / (i + 1);
}
return(c);
}
