MKEQUAL  Make them equal !
You have an array containing N elements. At any move, you choose two indices i and j ( 0 <= i, j < N and i != j ) and increment value at one index and decrement value at other index. You can make this move any number of times. What is the maximum number of elements which can have the same value (after any number of moves) ?
Input
First line consists of T, the number of test cases. (1 <= T <= 100)
T sets follow. Each set contains N, the number of elements in the array, in the first line. (1 <= N <= 100000)
Next line of each set consists of N space separated integers (0 <= value <= 100000)
Output
Output T lines each containing the required answer.
Example
Input: 1 4 1 2 3 4 Output: 3
hide comments
nikhil2504:
20170730 15:59:30
Only Pen and Paper can help you !


ankit1cool:
20170606 08:49:00
Good Implementation of binary search 

be1048716:
20170519 20:17:53
No getting the question. Can anybody plz explain me the output?


ashishranjan28:
20170518 07:02:10
very easy 

thangnv:
20170331 17:48:05
Accept in 1 go 

AlphaDecay:
20150608 20:33:39
Nice Question ! :D 

ABHISHEK004:
20131214 20:49:06
problem setter should specify the max size of array correctly...with fixed size of 10000 had 2 WA's..size can be more than that


Rishul Aggarwal:
20131214 20:49:06
Seems that the test data has some flaw.. two similar solutions were judged differently and two different solutions were accepted 

Jacob Plachta:
20131214 20:49:06
Fantastic... N can be larger than 10,000 (but no larger than 90,000). 
Added by:  Pandian 
Date:  20131015 
Time limit:  0.5s1s 
Source limit:  50000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  All except: ASM64 
Resource:  Own 