lijie201602 2017-09-10 22:25:40
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#include<cstdio>
int n,a[110]={0},s=0,ans=0;
int main()
{
scanf("%d",&n);
for(int i=1;i<=n;i++) { scanf("%d",&a[i]); s+=a[i]; }
int f=s/n;
for(int i=1;i<=n;i++)
if(a[i]!=f) { a[i+1]+=a[i]-f; ans++; }
printf("%d",ans);
}