http://poj.org/problem?id=1160 /* @author: */ import java.util.Scanner; import java.util.Arrays; public class Main{ static int num[]=new int[302]; static int s[][]=new int[302][302]; static void cost(int n){ int i,j,k; for(i=1;i< n;i++){ for(k=i+1; k <= n; k ++){ int mid=(i+k)/2; for(j=i;j< mid;j++) s[i][k]+=num[mid]-num[j]; for(j=mid+1;j<=k;j++) s[i][k]+=num[j]-num[mid]; } } } public static void main(String args[]) { Scanner sc=new Scanner(System.in); int f[][]=new int[302][32]; int n,k; int i,j,m; for(i=0;i< s.length;i++) Arrays.fill(s[i],0); for(i=0;i< f.length;i++) Arrays.fill(f[i],1000000); n=sc.nextInt(); m=sc.nextInt(); for(i=1;i<=n;i++) num[i]=sc.nextInt(); cost(n); for(i=1;i<=n;i++) f[i][1]=s[1][i]; for(k=2;k<=m;k++){ for(i=1;i<=n;i++){ for(j=1;j< i;j++) if(f[j][k-1]+s[j+1][i]< f[i][k]) f[i][k]=f[j][k-1]+s[j+1][i]; } } System.out.printf("%dn",f[n][m]); } }
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