B - OP PaIrS

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Given an array $A$ of size $N$. Find the numbers of OP pairs. $\text{A pair (i, j) is OP if-}$ $1)$ $1 <= i <= j <= n $ $2) \displaystyle\sum_{k=1}^{i} A_k$ = $\displaystyle\sum_{k=j}^{N} A_k$ ###Input: - First line will contain $T$, number of testcases. Then the testcases follow. - Each testcase contains of a single line of input $N$. - The second line contains $N$ space-sepa

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solution.cppC++17

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