超级简单的解法

#include<bits/stdc++.h>
using namespace std;
int sum=0,ant=0;
int a[10010];
int main(){
int n;
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){
int diff = a[i] - sum;
a[i+1] += diff;
ant++;
}
}
cout<<ant;
return 0;
}