62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
#include <iostream>
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#include <stdio.h>
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#include <algorithm>
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using namespace std;
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int dp[11000][16],a[110],b[110];
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inline void fun(int &x,int y)
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{
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if(x == 0)x=y;
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else x=min(x,y);
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}
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int main()
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{
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int len,n,i,j,k,ans;
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while(~scanf("%d %d",&len,&n))
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{
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for(i=1;i<=len;i++)
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{
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scanf("%d",&a[i]);
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}
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for(i=1;i<=len;i++)
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{
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scanf("%d",&b[i]);
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}
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memset(dp,0,sizeof(dp));
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dp[1][1]=a[1];
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for(i=0;i<n;i++)
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{
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for(j=1;j<=len;j++)
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{
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if(i == 0 && j == 1)continue;
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for(k=0;k<15;k++)
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{
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if(dp[i*len+j-1][k])
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{
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if(k>=5 && k<14)
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{
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fun(dp[i*len+j][k+1],dp[i*len+j-1][k]+a[j]);
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fun(dp[i*len+j][k-5],dp[i*len+j-1][k]+b[j]);
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}
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else if(k == 14)
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{
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fun(dp[i*len+j][10],dp[i*len+j-1][k]+a[j]);
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fun(dp[i*len+j][k-5],dp[i*len+j-1][k]+b[j]);
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}
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else
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{
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fun(dp[i*len+j][k+1],dp[i*len+j-1][k]+a[j]);
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}
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}
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}
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}
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}
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ans=99999999;
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for(i=0;i<15;i++)
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{
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if(dp[n*len][i] && dp[n*len][i]<ans)ans=dp[n*len][i];
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}
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printf("%d\n",ans);
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}
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return 0;
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}
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