题解

#include<bits/stdc++.h>
using namespace std;
const int maxn=1e2+5;
int n,sum,a[maxn],cnt;
int main()
{
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
        sum+=a[i];
    }
    sum/=n;
    for(int i=1;i<=n;i++)
    {
        if(a[i]==sum) continue;
        cnt++;
        if(a[i]<sum)
        {
            a[i+1]-=sum-a[i];
        }
        else if(a[i]>sum)
        {
            a[i+1]+=a[i]-sum;
            
        }
    }
    cout<<cnt;
    return 0;
}