Problem 197. Recurrence relation

A recurrence relation is given by

P(1)   := 1
P(n+1) := exp(1) - (n+1)*P(n)

Write a function that, given an integer n, returns P(n). The n will be smaller than 100 in all test-suite problems and an absolute precision of 10*eps (~2e-15, i.e. almost machine precision) is required.

Solve

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19.5% Correct | 80.5% Incorrect
Last Solution submitted on Nov 19, 2025

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