uppose the elements of an array A containing positive integers, denote the weights in kilograms. And we have a beam balance. We want to put the weights on both pans of the balance in such a way that for some index 0 < i < A.length - 1, all values starting from A[0], A[1], upto A[ i - 1], should be on the left pan. And all values starting from A[ i ] upto A[ A.length - 1] should be on the right pan and the left and right pan should be balanced. If such an i exists, return true. Else, return false. Input: [1, 1, 1, 2, 1] Output : true Explanation: (summation of [1, 1, 1] = summation of [2,1]) Input: [2, 1, 1, 2, 1] Output: false Input: [10, 3, 1, 2, 10] Output: true Explanation: (summation of [10, 3] = summation of [1,2,10]))

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Suppose the elements of an array A containing positive integers, denote the weights in kilograms. And we have a beam balance. We want to put the weights on both pans of the balance in such a way that for some index 0 < i < A.length - 1, all values starting from A[0], A[1], upto A[ i - 1], should be on the left pan. And all values starting from A[ i ] upto A[ A.length - 1] should be on the right pan and the left and right pan should be balanced. If such an i exists, return true. Else, return false. 

Input: [1, 1, 1, 2, 1] Output : true

Explanation: (summation of [1, 1, 1] = summation of [2,1])

Input: [2, 1, 1, 2, 1] Output: false

Input: [10, 3, 1, 2, 10]  Output: true 

Explanation: (summation of [10, 3] = summation of [1,2,10]))

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