At a lemonade stand, each lemonade costs $5.  Customers are standing in a queue to buy from you, and order one at a time (in the order specified by bills). Each customer will only buy one lemonade and pay with either a $5, $10, or $20 bill.  You must…

At a lemonade stand, each lemonade costs $5. Customers are standing in a queue to buy from you, and order one at a time (in the order specified by bills). Each customer will only buy one lemonade and pay with either a $5, $10, or $20 bill.  You must…

At a lemonade stand, each lemonade costs $5. Customers are standing in a queue to buy from you, and order one at a time (in the order specified by bills). Each customer will only buy one lemonade and pay with either a $5, $10, or $20 bill.  You must…

At a lemonade stand, each lemonade costs $5. Customers are standing in a queue to buy from you, and order one at a time (in the order specified by bills). Each customer will only buy one lemonade and pay with either a $5, $10, or $20 bill.  You must…

At a lemonade stand, each lemonade costs $5. Customers are standing in a queue to buy from you, and order one at a time (in the order specified by bills). Each customer will only buy one lemonade and pay with either a $5, $10, or $20 bill.  You must…

At a lemonade stand, each lemonade costs $5. Customers are standing in a queue to buy from you, and order one at a time (in the order specified by bills). Each customer will only buy one lemonade and pay with either a $5, $10, or $20 bill. You must p…

913C - Party Lemonade 思路:对于第i个话费cost[i],取min(cost[i],2*cost[i-1]),从前往后更新,这样就可以保证第n个的话费的性价比最高,那么从最高位开始贪心,取最优解. 代码: #include<bits/stdc++.h> using namespace std; #define ll long long #define pb push_back #define mem(a,b) memset(a,b,sizeof(a)) const ll…

[题目]C. Party Lemonade [题意]给定n个物品,第i个物品重量为2^(i-1)价值为ci,每个物品可以无限取,求取总重量>=L的最小代价.1<=30<=n,1<=L,ci<=10^9. [算法]数学(二进制原理) [题解]实际上每个物品的重量对应答案的一个二进制位,先对物品进行预处理: 1.将没用的大物品用小物品替代(价值不如前面的小物品叠加). 2.用单价最小的物品补齐后面的二进制位. 然后把L二进制展开,从小到大扫描:如果该位是1则必须选择该物品,如果该…

4990: Lemonade Trade 时间限制: 1 Sec  内存限制: 128 MB  Special Judge提交: 88  解决: 17[提交][状态][讨论版][命题人:admin] 题目描述 The lunch break just started! Your mother gave you one litre of pink lemonade. You do not like pink lemonade and want blue lemonade instead. Fort…

P4379 [USACO18OPEN]Lemonade Line 题目描述 这是农场上一个炎热的夏日,Farmer John要给他的 NN 头奶牛发柠檬汽水了!所有的 NN 头奶牛(方便起见,编号为 1 \dots N1…N )都喜欢柠檬汽水,只是有些喜欢的程度更高一些.具体地说,奶牛 ii 为了获得柠檬汽水最多愿意排在w_iwi​ 头奶牛之后.现在所有的 NN 头奶牛都在田里,但是只要Farmer John敲响牛铃,这些奶牛就会立刻赶到FJ的柠檬汽水站.她们会在FJ开始分发柠檬汽水之前到达,但…