Problem k-11 Box of Bricks
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Description
Little Bob likes playing with his box of bricks. He puts the bricks one upon another and builds stacks of different height. ``Look, I've built a wall!'', he tells his older sister Alice. ``Nah, you should make all stacks the same height. Then you would have a real wall.'', she retorts. After a little con- sideration, Bob sees that she is right. So he sets out to rearrange the bricks, one by one, such that all stacks are the same height afterwards. But since Bob is lazy he wants to do this with the minimum number of bricks moved. Can you help?
Input
The input consists of several data sets. Each set begins with a line containing the number n of stacks Bob has built. The next line contains n numbers, the heights hi of the n stacks. You may assume 1 <= n <= 50 and 1 <= hi <= 100.
The total number of bricks will be divisible by the number of stacks. Thus, it is always possible to rearrange the bricks such that all stacks have the same height.
The input is terminated by a set starting with n = 0. This set should not be processed.
Output
For each set, first print the number of the set, as shown in the sample output. Then print the line ``The minimum number of moves is k.'', where k is the minimum number of bricks that have to be moved in order to make all the stacks the same height.
Output a blank line after each set.
Sample Input
6
5 2 4 1 7 5
0
Sample Output
Set #1
The minimum number of moves is 5.
题目介绍
移动最少数目的砖块将所有的砖盒弄的一般高
解题思路
先累加起所有砖的总数量,再除以砌墙的数量就得到最后的高度,用这个高度减去所有小于它的砖盒的高度,再把所得结果相加,就得出答案
源代码
#include<bits/stdc++.h>
using namespace std;
int main()
{
vector<int>v;
int n,b,sum,ave,e,c=0;
while(cin>>n)
{
if(n==0) break;
c++;
sum=0;
e=0;
v.clear();
for(int i=0;i<n;i++)
{
cin>>b;
v.push_back(b);
sum=sum+b;
}
ave=sum/n;
for(int j=0;j<v.size();j++)
{
if(v[j]>ave)
e=e+(v[j]-ave);
}
cout<<"Set #"<<c<<endl;
cout<<"The minimum number of moves is "<<e<<"."<<endl;
cout<<endl;
}
return 0;
}
怎么说呢,再简单的题也会有出错的时候,最常见的出错就是Presentation Error
首先可以肯定的是,你的思路没有错,输出结果也与标准输出结果非!常!接!近!出现这个错误最可能的原因是,在输出结果的后面,多了或少了没什么意义的空格,tab,换行符等等。所以,请先认真检查程序的输出结果是否与标准完!全!一!致!OJ平台对格式的检查可以说是非!常!严!格!
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