Lua杨辉三角：二维递推的行列生成

local function cell(r, c)
    if c == 1 or c == r then return 1 end
    return cell(r - 1, c - 1) + cell(r - 1, c)   -- 递归重算，爆炸增长
end

local function yanghui(rows)
    local prev = {}
    for r = 1, rows do
        local cur = {}
        for c = 1, r do
            cur[c] = (c == 1 or c == r) and 1
                or prev[c - 1] + prev[c]   -- 上一行直接递推
        end
        prev = cur
    end
    return prev
end
sendmsg(actor, 1, "怪物血量权重第10行中位 "
    .. yanghui(10)[5] .. " 与 " .. yanghui(10)[6])