CSU-1511

http://acm.csu.edu.cn/OnlineJudge/problem.php?id=1511

#include <iostream>
#include <math.h>
using namespace std;
int main(){
int x1,y1,x2,y2,x3,y3;
int flag=1;
while(scanf("%d%d%d%d%d%d",&x1,&y1,&x2,&y2,&x3,&y3)!=EOF){
int bu=0;
int temp=0;
if(x2<=x1&&y2<=y1){
temp=x2;x2=x1;x1=temp;
temp=y2;y2=y1;y1=temp;
}
else if(x2>=x1&&y1>=y2){
y1=9-y1;
y2=9-y2;
y3=9-y3;
}
else if(x1>=x2&&y1<=y2){
x1=9-x1;
x2=9-x2;
x3=9-x3;
}

while(x1!=x2&&y1!=y2){
x1++;
y1++;
bu++;
if(x1==x3&&y1==y3){
if(x2==x3){
x1--;
}
else if(y2==y3){
y1--;
}
else if((x2-x3)>(y2-y3)){
y1--;
}
else x1--;
}
}
bu+=(x2-x1)+(y2-y1);

cout<<"Case "<<flag++<<": "<<bu<<endl;

}
return 0;
}