delete pics to save space

2.11300.cpp

@@ -0,0 +1,29 @@
+#include<cstdio>
+#include<algorithm>
+using namespace std;
+const int maxn=1000010;
+long long a[maxn],c[maxn],cnt,M;
+int n;
+int main()
+{
+#ifdef local
+	freopen("pro.in","r",stdin);
+#endif
+	while(scanf("%d",&n)==1&&n)
+	{
+		cnt=0;
+		for(int i=1;i<=n;i++)
+		{
+			scanf("%lld",a+i);
+			cnt+=a[i];
+		}
+		M=cnt/n;
+		c[0]=0;
+		for(int i=1;i<n;i++) c[i]=c[i-1]+a[i]-M;
+		sort(c,c+n);
+		long long x=c[n/2],res=0;
+		for(int i=0;i<n;i++) res+=abs(x-c[i]);
+		printf("%lld\n",res);
+	}
+	return 0;
+}