在元组列表中成对添加元素

我有两个元组列表

[[1,3000],[2,5000],[3,7000],[4,10000]]
[[1,2000],[2,3000],[3,4000],[4,5000]] 

总数是一万。这里我们有[25000],[45000]和[37000],[23000],所以输出应该是 [2,4] 和 [3,2]

[[1,2000],[2,4000],[3,6000]]
[[1,2000]]

[2,1]

import itertools

def optimalUtilization(maximumOperatingTravelDistance,
                       forwardShippingRouteList, returnShippingRouteList):
    result=[]
    t1=[]
    t2=[]
    for miles in forwardShippingRouteList:
        t1.append(miles[1])

    for miles in returnShippingRouteList:
        t2.append(miles[1])

    result.append(t1)
    result.append(t2)
    total_sum=set()

    for element in list(itertools.product(*result)):
        if sum(element)<=maximumOperatingTravelDistance:
            total_sum.add(sum(element))

    total_sum=sorted(total_sum,reverse=True)
    return optimalUtilizationhelper(total_sum[0],
                       forwardShippingRouteList, returnShippingRouteList)


def optimalUtilizationhelper(maximumOperatingTravelDistance,
                       forwardShippingRouteList, returnShippingRouteList):
    dist_dict={}
    for carid,miles in forwardShippingRouteList:
        dist_dict.update({miles:carid})

    result=[]

    for carid,miles in returnShippingRouteList:
        if (maximumOperatingTravelDistance-miles) in dist_dict:
            result.append(list((dist_dict[maximumOperatingTravelDistance-miles],carid)))

    return result

有没有更好的蟒蛇方法?

驱动程序代码

print(optimalUtilization(20,
                [[1,8],[2,7],[3,14]],
                [[1,5],[2,10],[3,14]]))