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Question 590
Star Triangle By Recursion
Star Triangle By Recursion
Complete print_stars(n: int) -> None so it prints a triangle of n rows where the first row holds one star and each row holds one more star than the row above it, using recursion. The base case is written: zero rows prints nothing. Add the recursive case: call the function with n - 1 FIRST, so the shorter rows come out before this one, then print a row of n stars built with string repetition, "*" * n. Do NOT write a main block or any top-level test code; the tests construct the calls. Input: one integer n, no prompt, which the tests read and pass to your function.
Expected Output:
* ** *** ****
= newline. The output ends with a newline — print one after the last line.
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