Series Sum

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Given an array of $N$ integers $a_1, a_2, a_3, ...., a_N$, find the value of following series: $\sum_{i=1}^{N} \sum_{j=1}^{N-i+1} \frac{a_j+1}{N-j+1}$ ### Input - First line will contain $T$, number of testcases. Then the testcases follow. - First line of each testcase contains a single integer $N$. - Second line of each testcase contains $N$ space separated integers $a_1, a_2. a_3, ...., a_N$ #

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solution.cppC++17

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