mirror of
https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
105 lines
2.7 KiB
C++
105 lines
2.7 KiB
C++
//#include <bits/stdc++.h>
|
|
#include <stdio.h>
|
|
#include <iostream>
|
|
#include <string.h>
|
|
#include <math.h>
|
|
#include <stdlib.h>
|
|
#include <limits.h>
|
|
#include <algorithm>
|
|
#include <queue>
|
|
#include <vector>
|
|
#include <set>
|
|
#include <map>
|
|
#include <stack>
|
|
#include <bitset>
|
|
#include <string>
|
|
#include <time.h>
|
|
using namespace std;
|
|
long double esp=1e-11;
|
|
//#pragma comment(linker, "/STACK:1024000000,1024000000")
|
|
#define fi first
|
|
#define se second
|
|
#define all(a) (a).begin(),(a).end()
|
|
#define cle(a) while(!a.empty())a.pop()
|
|
#define mem(p,c) memset(p,c,sizeof(p))
|
|
#define mp(A, B) make_pair(A, B)
|
|
#define pb push_back
|
|
#define lson l , m , rt << 1
|
|
#define rson m + 1 , r , rt << 1 | 1
|
|
typedef long long int LL;
|
|
const long double PI = acos((long double)-1);
|
|
const LL INF=0x3f3f3f3f3f3f3f3fll;
|
|
const LL MOD =1000000007ll;
|
|
const int maxn=5001;
|
|
LL dp[2][maxn][3];
|
|
LL m[maxn][4];
|
|
int in[maxn][2],n;
|
|
void update(int x,int a,int b,LL ans)
|
|
{
|
|
if(a==0&&b==0&&x!=n)return;
|
|
if(a>=0&&b>=0&&(a-b+1)>=0&&(a-b+1)<3)
|
|
{
|
|
dp[x&1][a][a-b+1]=min(dp[x&1][a][a-b+1],ans);
|
|
//printf("****%d %d %d %lld\n",x,a,b,ans);
|
|
}
|
|
}
|
|
int main()
|
|
{
|
|
//freopen("in.txt", "r", stdin);
|
|
//freopen("inlay.in", "r", stdin);
|
|
//freopen("out.txt", "w", stdout);
|
|
//::iterator iter; %I64d
|
|
//for(int x=1;x<=n;x++)
|
|
//for(int y=1;y<=n;y++)
|
|
//scanf("%d",&a);
|
|
//printf("%d\n",ans);
|
|
int s,e;
|
|
scanf("%d%d%d",&n,&s,&e);
|
|
LL t;
|
|
for(int x=1;x<=n;x++)
|
|
{
|
|
scanf("%I64d",&t);
|
|
m[x][0]=m[x][2]=t;
|
|
m[x][1]=m[x][3]=-t;
|
|
in[x][0]=1;
|
|
in[x][1]=1;
|
|
}
|
|
for(int y=0;y<4;y++)
|
|
for(int x=1;x<=n;x++)
|
|
{
|
|
scanf("%I64d",&t);
|
|
m[x][y]+=t; //printf("%d %d %lld\n",x,y,m[x][y]);
|
|
}
|
|
m[s][0]=m[s][1]=0;
|
|
m[e][2]=m[e][3]=0;
|
|
in[s][0]=0;
|
|
in[s][1]=1;
|
|
in[e][0]=1;
|
|
in[e][1]=0;
|
|
memset(dp,0x3f,sizeof(dp));
|
|
LL a,b;
|
|
dp[0][0][1]=0;
|
|
for(int x=1;x<=n;x++)
|
|
{
|
|
mem(dp[x&1],0x3f);
|
|
for(int y=0;y<=n;y++)
|
|
for(int z=0;z<3;z++)
|
|
if(dp[(x-1)&1][y][z]!=INF)
|
|
{
|
|
a=y;
|
|
b=a+1-z;
|
|
if(b<0)continue;
|
|
//printf("%d %d %d %lld\n",x-1,a,b,dp[(x-1)&1][y][z]);
|
|
if(a-in[x][1]>=0)
|
|
update(x,a-in[x][1]+in[x][0],b,dp[(x-1)&1][y][z]+m[x][1]+m[x][2]);
|
|
if(b-in[x][0]>=0)
|
|
update(x,a,b-in[x][0]+in[x][1],dp[(x-1)&1][y][z]+m[x][0]+m[x][3]);
|
|
update(x,a+in[x][0],b+in[x][1],dp[(x-1)&1][y][z]+m[x][1]+m[x][3]);
|
|
if(a-in[x][1]>=0&&b-in[x][0]>=0)
|
|
update(x,a-in[x][1],b-in[x][0],dp[(x-1)&1][y][z]+m[x][0]+m[x][2]);
|
|
}
|
|
}
|
|
printf("%I64d\n",dp[n&1][0][1]);
|
|
return 0;
|
|
}
|