CANDY3 - Candy III


A class went to a school trip. And, as usually, all N kids have got their backpacks stuffed with candy. But soon quarrels started all over the place, as some of the kids had more candies than others. Soon, the teacher realized that he has to step in: "Everybody, listen! Put all the candies you have on this table here!"

Soon, there was quite a large heap of candies on the teacher's table. "Now, I will divide the candies into N equal heaps and everyone will get one of them." announced the teacher.

"Wait, is this really possible?" wondered some of the smarter kids.

Problem specification

You are given the number of candies each child brought. Find out whether the teacher can divide the candies into N exactly equal heaps. (For the purpose of this task, all candies are of the same type.)

Input specification

The first line of the input file contains an integer T specifying the number of test cases. Each test case is preceded by a blank line.

Each test case looks as follows: The first line contains N : the number of children. Each of the next N lines contains the number of candies one child brought.

Output specification

For each of the test cases output a single line with a single word "YES" if the candies can be distributed equally, or "NO" otherwise.

Example

Input:
2

5
5
2
7
3
8

6
7
11
2
7
3
4

Output:
YES
NO
Note: the input file will not exceed 1MB.

hide comments
kishor_e: 2020-07-29 19:41:04

don't worry about the blank space, wasted an hour for it :(

sanjay18r: 2020-07-25 20:16:41

Just use long long int for taking test cases with modulo.

Last edit: 2020-07-25 20:17:34
mm21: 2020-07-16 20:01:43

Input format is the worst. We have to consider the new line after every set of test cases too. Took me 2 NZEC to figure that out.

jhj8088: 2020-06-13 13:50:54

fuck this website

adikrmishra_1: 2020-05-19 20:12:46

simple question use modular arithmetics :)

avi_kumar15: 2020-05-19 07:56:09

oof, atleast give constraints

hritik_1105: 2020-05-02 09:57:44

There's nothing to deal with the blank spaces because we've already given the number of students inside the testcase.

sonushahuji4: 2020-04-28 10:19:06

Problem is simple but you need to be careful while taking inputs.

Last edit: 2020-06-14 01:48:16
yourmom__: 2020-04-15 09:41:33

This problem isnt good. It does not tell us about the input limits. All you guys are saying it is good because of mod or whatever (alright, there is one good logical use of mod here, but moving on). They should mention that EVERYTHING in input will exceed 2^32. Guys use long (in java) or long long int (in c++) for every input you take. Actually I would say don't waste your time on this question.
My solution was accepted on the 5th try, after changing EVERY int in my java code to long :|

Last edit: 2020-04-15 09:42:19
roshansalian: 2020-04-13 11:27:58

Hint-SPOJ me laddu problem hai hote


Added by:Fudan University Problem Setters
Date:2007-12-01
Time limit:1s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: C99 ERL JS-RHINO
Resource:IPSC 2006