4600: P1257 平面上的最接近点对
          Memory Limit:128 MB
          Time Limit:1.000 S
         
      
      
        
          Judge Style:Text Compare
          Creator:
      
      
          Submit:0
          Solved:0
      
Description

Input

Output

Sample Input Copy
3
1 1
1 2
2 2Sample Output Copy
1.0000HINT
