Given an integer n, the task is to find the sum of the series 11 + 22 + 33 + ….. + nn using recursion.
Input: n = 2
11 + 22 = 1 + 4 = 5
Input: n = 3
11 + 22 + 33 = 1 + 4 + 27 = 32
Approach: Starting from n, start adding all the terms of the series one by one with the value of n getting decremented by 1 in each recursive call until the value of n = 1 for which return 1 as 11 = 1.
Below is the implementation of the above approach:
- Tail Recursion
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