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GO Classes DPP | GATE DA | Python Programming | Lambda Reduce

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1 Answer

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The $\texttt{reduce()}$ function repeatedly applies the lambda function and carries forward one accumulated value.

Here, the initial accumulator value is $1$.

lambda acc, x: acc * x + 1

Step-by-step:

Initial acc = 1

x = 2: acc = 1 * 2 + 1 = 3
x = 3: acc = 3 * 3 + 1 = 10
x = 4: acc = 10 * 4 + 1 = 41

Therefore:

ans = 41

The output is:

41
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