编程题三道：（未完待续，题目忘了）

1、

2、

# 获取最低价格
def getMinPrice(num,price,x,y):
    price_sum = 0
    if num>=y:
        if price>=x/y:
            price_sum = x
    return price_sum

if __name__== "__main__":
    try:
        while True:
            # 输入
            list = [int(i) for i in input("").split()]
            arr = []
            for i in range(list[1]):
                tmp = [int(i) for i in input("").split()]
                arr.append(tmp)
            ###########################################
            sum_price = 0
            sum_p = list[0]+1
            person = []
            for j in range(list[1]):
                person.append(arr[j][1])
            value = []
            for j in range(list[1]):  # 性价比
                value.append(arr[j][0]/arr[j][1])

            while sum_p>=min(person):
                x = arr[value.index(min(value))][0]
                y = arr[value.index(min(value))][1]
                tmp1 = getMinPrice(sum_p,list[2],x,y)
                sum_price +=  tmp1
                sum_p -= arr[value.index(min(value))][1]

            sum_price = sum_price + sum_p*list[2]
            print(sum_price)
    except:
        pass

运行结果：

3、