Consider the following two sum functions: def sum_iter(x: int) -> int: result: int = 0 while x >= 0: result += x x -- 1 return result versus def sum_recur(x: int) -> int: if x < 0: return 0 else:

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Consider the following two sum functions:
def sum_iter(x: int) -> int:
result: int
while x >= 0:
result += x
x -- 1
return result
versus
def sum_recur(x: int) -> int:
if x < 0:
return 0
else:
return x + sum_recur(x - 1)
Transcribed Image Text:Consider the following two sum functions: def sum_iter(x: int) -> int: result: int while x >= 0: result += x x -- 1 return result versus def sum_recur(x: int) -> int: if x < 0: return 0 else: return x + sum_recur(x - 1)
Which of the following function calls requires the least memory (as would be visible in a
memory diagram) to process? If multiple are tied, select each.
sum_recur(1)
sum_recur(10)
sum_recur(100)
sum_iter(1)
sum_iter(10)
sum_iter(100)
Transcribed Image Text:Which of the following function calls requires the least memory (as would be visible in a memory diagram) to process? If multiple are tied, select each. sum_recur(1) sum_recur(10) sum_recur(100) sum_iter(1) sum_iter(10) sum_iter(100)
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