58 lines
1.3 KiB
C++
58 lines
1.3 KiB
C++
#include <cstdio>
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#include <cstring>
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#include <cmath>
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#include <algorithm>
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using namespace std;
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#define max(a,b) ((a)>(b)?(a):(b))
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#define max3(a,b,c) (max(a,max(b,c)))
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#define min(a,b) ((a)<(b)?(a):(b))
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const int N=1005;
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struct Point
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{
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int road,area;
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void Get ()
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{
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scanf("%d%d",&road,&area);
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}
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int Dis (Point b)
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{
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int tmp=fabs(b.area-area);
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return 400*fabs(b.road-road)+min( tmp,360-tmp);
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}
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}data[N];
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int dis[N][N];
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int dp[N][N];
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int main ()
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{
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int T,i,j,n;
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scanf("%d",&T);
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while (T--)
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{
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scanf("%d",&n);
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data[0].area=0;
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data[0].road=0;
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memset(dis,0,sizeof(dis));
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memset(dp,0,sizeof(dp));
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for (i=1;i<=n;i++)
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data[i].Get();
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for (i=0;i<=n;i++)
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for (j=i+1;j<=n;j++)
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dis[i][j]=dis[j][i]=data[i].Dis(data[j]);
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dp[0][0]=0;
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n++;
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for (i=1;i<n;i++)
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dp[i][0]=dis[i][0];
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for (i=1;i<n-1;i++)
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{
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dp[i+1][i]=1000000000;
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for (j=0;j<=i-1;j++)
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{
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dp[i+1][j]=dp[i][j]+dis[i][i+1];
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dp[i+1][i]=min(dp[i+1][i],dp[i][j]+dis[j][i+1]);
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}
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}
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printf("%d\n",dp[n-1][n-2]+dis[n-1][n-2]+10*(n-1));
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}
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return 0;
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}
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