delete pics to save space

7.1723.cpp

@@ -0,0 +1,22 @@
+#include<cstdio>
+#include<algorithm>
+using std::sort;
+typedef long long LL;
+const int maxn=10005;
+int n,x[maxn],y[maxn];
+inline LL abs(const LL &x) { return x>0?x:-x; }
+int main()
+{
+#ifdef local
+	freopen("pro.in","r",stdin);
+#endif
+	scanf("%d",&n);
+	for(int i=1;i<=n;i++) scanf("%d %d",&x[i],&y[i]);
+	sort(x+1,x+n+1);
+	for(int i=1;i<=n;i++) x[i]+=1-i;
+	sort(x+1,x+n+1); sort(y+1,y+n+1);
+	LL res=0,tx=x[(n+1)/2],ty=y[(n+1)/2];
+	for(int i=1;i<=n;i++) res+=abs(x[i]-tx)+abs(y[i]-ty);
+	printf("%lld\n",res);
+	return 0;
+}