CodeForces - 405A

本文介绍了一个名为GravityFlip的问题,该问题要求对一排不同高度的玩具立方体进行重新排列,模拟了重力方向改变后的立方体分布情况。通过将输入的高度进行排序,实现了题目要求的立方体排列变化。
Time Limit: 1000MS Memory Limit: 262144KB 64bit IO Format: %I64d & %I64u

 Status

Description

Little Chris is bored during his physics lessons (too easy), so he has built a toy box to keep himself occupied. The box is special, since it has the ability to change gravity.

There are n columns of toy cubes in the box arranged in a line. The i-th column contains ai cubes. At first, the gravity in the box is pulling the cubes downwards. When Chris switches the gravity, it begins to pull all the cubes to the right side of the box. The figure shows the initial and final configurations of the cubes in the box: the cubes that have changed their position are highlighted with orange.

Given the initial configuration of the toy cubes in the box, find the amounts of cubes in each of the n columns after the gravity switch!

Input

The first line of input contains an integer n (1 ≤ n ≤ 100), the number of the columns in the box. The next line contains n space-separated integer numbers. The i-th number ai (1 ≤ ai ≤ 100) denotes the number of cubes in the i-th column.

Output

Output n integer numbers separated by spaces, where the i-th number is the amount of cubes in the i-th column after the gravity switch.

Sample Input

Input
4
3 2 1 2
Output
1 2 2 3 
Input
3
2 3 8
Output
2 3 8 

Hint

The first example case is shown on the figure. The top cube of the first column falls to the top of the last column; the top cube of the second column falls to the top of the third column; the middle cube of the first column falls to the top of the second column.

In the second example case the gravity switch does not change the heights of the columns.

Source

题意:把题目翻译一下,就是从小到大排序。
#include <iostream>
#include <stdlib.h>
#include <stdio.h>
#include <algorithm>
#include <string.h>
#include <math.h>
using namespace std;
int main()
{
    int i,n,a[105];
    while (cin>>n)
    {
        for (i=0;i<n;i++)
        cin>>a[i];
        sort(a,a+n);
        for (i=0;i<n-1;i++)
        cout<<a[i]<<" ";
        cout<<a[i]<<endl;
    }
    return 0;
}

 

转载于:https://www.cnblogs.com/Ritchie/p/5425033.html

### 关于 Codeforces Problem 1802A 目前提供的引用内容并未涉及 Codeforces 编号为 1802A 的题目详情或解决方案[^1]。然而,基于常见的竞赛编程问题模式以及可能的解决方法,可以推测该类题目通常围绕算法设计、数据结构应用或者特定技巧展开。 如果假设此题属于典型的算法挑战之一,则可以从以下几个方面入手分析: #### 可能的方向一:字符串处理 许多入门级到中级难度的问题会考察字符串操作能力。例如判断子串是否存在、统计字符频率或是执行某种转换逻辑等。以下是 Python 中实现的一个简单例子用于演示如何高效地比较两个字符串是否相匹配: ```python def are_strings_equal(s1, s2): if len(s1) != len(s2): return False for i in range(len(s1)): if s1[i] != s2[i]: return False return True ``` #### 方向二:数组与列表的操作 另一常见主题是对整数序列进行各种形式上的变换或者是查询最值等问题。下面给出一段 C++ 程序片段来展示快速寻找最大元素位置的方法: ```cpp #include <bits/stdc++.h> using namespace std; int main(){ int n; cin >> n; vector<int> a(n); for(auto &x : a){ cin>>x; } auto max_it = max_element(a.begin(),a.end()); cout << distance(a.begin(),max_it)+1; // 输出索引加一作为答案 } ``` 由于具体描述缺失,在这里仅提供通用框架供参考。对于确切解答还需要访问实际页面获取更多信息后再做进一步探讨[^3]。
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