Lua打家劫舍：不相邻选取的最大收益

local function robRec(nums, i)
    if i < 1 then return 0 end
    if i == 1 then return nums[1] end
    return math.max(robRec(nums, i - 1),
        robRec(nums, i - 2) + nums[i])
end

local function rob(nums)
    local a, b = 0, 0
    for _, v in ipairs(nums) do
        a, b = b, math.max(b, a + v)
    end
    return b
end
local p = getplayerbyname("rob01")
sendmsg(p, 1, "最大收益 " .. rob({3, 6, 4, 8, 5}))