Maurice Tutor

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About Maurice Tutor

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Expertise:
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Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
Last Sign in: 406 Weeks Ago, 2 Days Ago
Questions Answered: 66690
Tutorials Posted: 66688

Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

Experience

  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 17 Sep 2017 My Price 6.00

Hyderabad bomb blasts.

ACP Pradyumn is on his way to catch the mastermind behind the Hyderabad bomb blasts.

 

The mastermind, on the other hand, challenges the ACP by generating a sequence of numbers for him.

 

There is a sequence of n numbers, which can be both positive and negative. The task is to find the number of continuous sequence of numbers such that their sum is zero.

For example if the sequence is: 5, 2, -2, 5, -5, 9 There are 3 such sequences 2, -2 5, -5 2, -2, 5, -5

Since the ACP is having difficulty in solving the problem, he asks for your help. Your goal is to find number of such sequences to help the ACP in catching the terrorist.

 

 

Input

First line contains T - number of test cases Second line contains n - the number of elements in a particular test case. Next line contain n elements, ai (1

Output

 

The number of such sequences whose sum if zero.

 

Constraints

1

Example

Input: 2 4 0 1 -1 0 6 5 2 -2 5 -5 9 Output: 6 3

Answers

Maurice Tutor
(5)
Status NEW Posted 17 Sep 2017 05:09 AM My Price 6.00

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