
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Transcribed Image Text:Write both a nonrecursive and recursive function that displays the rows of asterisks
given below
4
*******:
**** ****
*** ***
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**
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- Using recursion, write a function sum that takes a single argument n and computes the sum of all integers between 0 and n inclusive. Do not write this function using a while or for loop. Assume n is non-negative. def sum(n): """Using recursion, computes the sum of all integers between 1 and n, inclusive. Assume n is positive. >>> sum(1) 1 >>> sum(5) # 1 + 2 + 3+ 4+ 5 15 "*** YOUR CODE HERE ***"arrow_forwardFor each function, describe what it actually does when called with a string argument. If it does not correctly check for lowercase letters, give an example argument that produces incorrect results, and describe why the result is incorrect. # 1 def any_lowercase1(s): for c in s: if c.islower(): return True else: return False # 2 def any_lowercase2(s): for c in s: if 'c'.islower(): return 'True' else: return 'False' # 3 def any_lowercase3(s): for c in s: flag = c.islower() return flag # 4 def any_lowercase4(s): flag = False for c in s: flag = flag or c.islower() return flag # 5 def any_lowercase5(s): for c in s: if not c.islower(): return False return True The code and its output must be explained technically whenever asked. The explanation can be provided before or after the code, or in the form of code comments within…arrow_forwardNeed help Writing a function, countVowels, that accepts a string as an argument. countVowels should return the number of vowels in that string. Use recursion. example countVowels('Four score and seven years'); // => 9arrow_forward
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