Update 3SumClosest

Run Status: Wrong Answer
Progress: 11/20 test cases passed.
input	output	expected	
[0,0,0], 1	1	0	
   
[0,1,2], 3	3	3	
   
[0,1,2], 0	3	3	
   
[1,1,-1], 0	1	1	
   
[1,1,-1], 2	1	1	
   
[1,1,-1], 1	1	1	
   
[1,1,1,1], 0	3	3	
   
[1,1,1,1], 3	3	3	
   
[1,1,1,1], 4	1	3	
   
[1,1,1,1], -100	103	3	
   
[1,1,1,1], 100	97	3	
   
[1,1,1,0], -100	102	2	
   
[1,1,1,0], 100	97	3	
   
[-1,2,1,-4], 1	1	2	
   
[0,2,1,-3], 1	1	0	
   
[1,1,-1,-1,3], 1	1	1	
   
[1,1,-1,-1,3], -1	-1	-1	
   
[1,1,-1,-1,3], 3	3	3	
   
[-3,-2,-5,3,-4], -1	1	-2	
   
[-1,0,1,2,-1,-4], 0	0	0