codeforces H. Mixing Milk

这是一个关于三杯不同容量且装有不等量牛奶的杯子,在经历100次循环倾倒后的牛奶分布问题。通过分析和编程解决,展示了如何在限定次数内达到牛奶在各杯中的最终状态。

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H. Mixing Milk

time limit per test:1 second
memory limit per test:256 megabytes
input:standard input
output:standard output

Farming is competitive business – particularly milk production. Farmer John figures that if he doesn’t innovate in his milk production methods, his dairy business could get creamed! Fortunately, Farmer John has a good idea. His three prize dairy cows Bessie, Elsie, and Mildred each produce milk with a slightly different taste, and he plans to mix these together to get the perfect blend of flavors.

To mix the three different milks, he takes three buckets containing milk from the three cows. The buckets may have different sizes, and may not be completely full. He then pours bucket 1 into bucket 2, then bucket 2 into bucket 3, then bucket 3 into bucket 1, then bucket 1 into bucket 2, and so on in a cyclic fashion, for a total of 100 pour operations (so the 100th pour would be from bucket 1 into bucket 2). When Farmer John pours from bucket a into bucket b, he pours as much milk as possible until either bucket a becomes empty or bucket b becomes full.

Please tell Farmer John how much milk will be in each bucket after he finishes all 100 pours.

Input

The first line of the input file contains two space-separated integers: the capacity c1 of the first bucket, and the amount of milk m1 in the first bucket. Both c1 and m1 are positive and at most 1 billion, with c1≤m1. The second and third lines are similar, containing capacities and milk amounts for the second and third buckets.

Output

Please print three lines of output, giving the final amount of milk in each bucket, after 100 pour operations.

Example

input
10 3
11 4
12 5
output
0
10
2

Note

In this example, the milk in each bucket is as follows during the sequence of pours:

Initial State: 3 4 5

  1. Pour 1->2: 0 7 5

  2. Pour 2->3: 0 0 12

  3. Pour 3->1: 10 0 2

  4. Pour 1->2: 0 10 2

  5. Pour 2->3: 0 0 12

(The last three states then repeat in a cycle …)

三个杯子倒来倒去100次的水题。
还莫名其妙错了两发。

代码
#include<iostream>
#include<cstdio>
#include<cstring>
#include<queue>
#include<vector>
#include<algorithm>
#define MS(X) memset(X,0,sizeof(X))
typedef long long LL;
using namespace std;
struct node{
    LL mx,pi;
}st[4];

int main(){
    LL c1,c2;
    for(int i=0;i<3;i++){
        cin>>st[i].mx>>st[i].pi;
    }
    for(int i=0;i<100;i++){
        if(i%3==0){
            if(st[0].pi<=(st[1].mx-st[1].pi)){
                st[1].pi+=st[0].pi;
                st[0].pi=0;
            }else{
                st[0].pi-=st[1].mx-st[1].pi;
                st[1].pi=st[1].mx;
            }
        }else if(i%3==1){
            if(st[1].pi<=(st[2].mx-st[2].pi)){
                st[2].pi+=st[1].pi;
                st[1].pi=0;
            }else{
                st[1].pi-=st[2].mx-st[2].pi;
                st[2].pi=st[2].mx;
            }
        }else if(i%3==2){
            if(st[2].pi<=(st[0].mx-st[0].pi)){
                st[0].pi+=st[2].pi;
                st[2].pi=0;
            }else{
                st[2].pi-=st[0].mx-st[0].pi;
                st[0].pi=st[0].mx;
            }
        }
    }
    printf("%I64d\n%I64d\n%I64d\n",st[0].pi,st[1].pi,st[2].pi);
    return 0;
}
### Codeforces Div.2 比赛难度介绍 Codeforces Div.2 比赛主要面向的是具有基础编程技能到中级水平的选手。这类比赛通常吸引了大量来自全球不同背景的参赛者,包括大学生、高中生以及一些专业人士。 #### 参加资格 为了参加 Div.2 比赛,选手的评级应不超过 2099 分[^1]。这意味着该级别的竞赛适合那些已经掌握了一定算法知识并能熟练运用至少一种编程语言的人群参与挑战。 #### 题目设置 每场 Div.2 比赛一般会提供五至七道题目,在某些特殊情况下可能会更多或更少。这些题目按照预计解决难度递增排列: - **简单题(A, B 类型)**: 主要测试基本的数据结构操作和常见算法的应用能力;例如数组处理、字符串匹配等。 - **中等偏难题(C, D 类型)**: 开始涉及较为复杂的逻辑推理能力和特定领域内的高级技巧;比如图论中的最短路径计算或是动态规划入门应用实例。 - **高难度题(E及以上类型)**: 对于这些问题,则更加侧重考察深入理解复杂概念的能力,并能够灵活组合多种方法来解决问题;这往往需要较强的创造力与丰富的实践经验支持。 对于新手来说,建议先专注于理解和练习前几类较容易的问题,随着经验积累和技术提升再逐步尝试更高层次的任务。 ```cpp // 示例代码展示如何判断一个数是否为偶数 #include <iostream> using namespace std; bool is_even(int num){ return num % 2 == 0; } int main(){ int number = 4; // 测试数据 if(is_even(number)){ cout << "The given number is even."; }else{ cout << "The given number is odd."; } } ```
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