33 lines
799 B
C++
33 lines
799 B
C++
#include <stdio.h>
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#include <cmath>
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#define maxn 100010
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double a[maxn],b[maxn],up,down,ans,g;
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int n,m,x,y;
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int main(){
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int i,j,k,t,cas=0;
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scanf("%d",&t);
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while(t--){
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ans=0;
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scanf("%lf%lf",&up,&down);
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g=(up-down)*(up-down);
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scanf("%d%d",&n,&m);
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for(i=0;i<n;i++)
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scanf("%lf",&a[i]);
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for(i=0;i<m;i++)
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scanf("%lf",&b[i]);
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x=0,y=0;
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while(x<n && y < m){
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ans+=sqrt(g+(a[x]-b[y])*(a[x]-b[y]));
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if(x==n-1) y++;
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else if(y==m-1) x++;
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else{
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if(fabs(a[x]-b[y+1]) < fabs(b[y]-a[x+1]))
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y++;
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else x++;
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}
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}
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printf("Case #%d: %.2lf\n",++cas,ans);
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}
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return 0;
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}
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