internal void AddMember(Member member)
{
if (member.IsZero)
{
return;
}
int m = 0; int s = mems.Count; // [m,s) の範囲を二分探索
while (m < s)
{
int c = (s + m) / 2;
int cmp = Member.MemberOrder(member, mems[c]);
if (cmp == 0)
{
mems[c] += member; // 同じ因数集合を持つ項
return;
}
else if (cmp < 0)
{
s = c;
}
else
{
m = c + 1;
}
}
// mems[m]<member<mems[s]
mems.Insert(s, member);
return;
}