题意:已知n个数,要将这n个数通过移动使得每个数都相等,求出最少的移动数量。
链接:http://acm.hdu.edu.cn/showproblem.php?pid=2088
思路:求出平均数,在统计大于平均数的所有数减去平均数的和即可。
注意点:无
以下为AC代码:
Run ID | Submit Time | Judge Status | Pro.ID | Exe.Time | Exe.Memory | Code Len. | Language | Author |
12561820 | 2014-12-22 16:21:45 | Accepted | 2088 | 15MS | 1160K | 1157 B | C++ | luminous11 |
#include <iostream>
#include <cstdio>
#include <string>
#include <cstring>
#include <vector>
#include <deque>
#include <list>
#include <cctype>
#include <algorithm>
#include <climits>
#include <queue>
#include <stack>
#include <cmath>
#include <map>
#include <set>
#include <iomanip>
#include <cstdlib>
#include <ctime>
#define ll long long
#define ull unsigned long long
#define all(x) (x).begin(), (x).end()
#define clr(a, v) memset( a , v , sizeof(a) )
#define pb push_back
#define mp make_pair
#define read(f) freopen(f, "r", stdin)
#define write(f) freopen(f, "w", stdout)
using namespace std;
int main()
{
int n;
bool flag = 0;
while ( cin >> n && n )
{
if ( flag ) cout << endl;
else flag = 1;
int num[100] = { 0 };
int sum = 0;
for ( int i = 0; i < n; i ++ )
{
cin >> num[i];
sum += num[i];
}
int ave = sum / n;
sum = 0;
for ( int i = 0; i < n; i ++ )
{
if ( num[i] < ave )sum += (ave-num[i]);
}
cout << sum << endl;
}
return 0;
}