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def count_non_overlapping(s, substr, start): Return the number of non-overlapping occurrences of substr in s starting from the index start. You can not use str method s.count. return 0 def count_non_overlapping_m(s, substr, start): Return the number of non-overlapping occurrences of substr in s starting from the index start. You must use a one-liner implementation by using s.count(). return Ø def find_smallest(t): Return the smallest element in given list t. Return None if t is empty return t[0] def myfilter(t, cond): t is a list, cond(x) is a boolean function that returns True or False given an element x in t. Return a new list that only includes element x from t such cond(x) is True. return t For the implementation of count_non_overlapping(), you CAN NOT use any string method such as s.find(), s.count s.index(). Be aware of handling of start index in particular when it is negative. Be aware that you are to find non- overlapping matches.

def count_non_overlapping(s, substr, start): Return the number of non-overlapping occurrences of substr in s starting from the index start. You can not use str method s.count. return 0 def count_non_overlapping_m(s, substr, start): Return the number of non-overlapping occurrences of substr in s starting from the index start. You must use a one-liner implementation by using s.count(). return Ø def find_smallest(t): Return the smallest element in given list t. Return None if t is empty return t[0] def myfilter(t, cond): t is a list, cond(x) is a boolean function that returns True or False given an element x in t. Return a new list that only includes element x from t such cond(x) is True. return t For the implementation of count_non_overlapping(), you CAN NOT use any string method such as s.find(), s.count s.index(). Be aware of handling of start index in particular when it is negative. Be aware that you are to find non- overlapping matches.

Database System Concepts
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
Problem 1PE
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To run and test your program: ~/cmpsc131python-userid$cd lab6 ~/cmpsc131python-userid/lab6$python3 -i lab6.py Expected output: $ python3 lab6.py Enter a string: banana Enter a substring to count: a Entera starting index: -3 a occurred in banana 2 times starting from index -3. a occurred in banana 2 times starting from index -3. Testing find_smallest: min in [5, 8, 10, 2, 7] is 2 min in ['hello', 'apple', 'banana', 'world'] is apple Testing myfilter: filering ['a', 'apple', 'racecar', 'hannah', 'banana'] with is_palindrome is ['a', 'racecar', 'hannah'] filtering [0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48] with is_even is [0, 6, 12, 18, 24, 30, 36, 42, 48] $python3 lab6.py Enter a string: banana Enter a substring to count: ana Entera starting index: 1 ana occurred in banana 1 times starting from index 1. ana occurred in banana 1 times starting from index 1. [... the same in all runs for find_smallest and myfilter.]
Transcribed Image Text:To run and test your program: ~/cmpsc131python-userid$cd lab6 ~/cmpsc131python-userid/lab6$python3 -i lab6.py Expected output: $ python3 lab6.py Enter a string: banana Enter a substring to count: a Entera starting index: -3 a occurred in banana 2 times starting from index -3. a occurred in banana 2 times starting from index -3. Testing find_smallest: min in [5, 8, 10, 2, 7] is 2 min in ['hello', 'apple', 'banana', 'world'] is apple Testing myfilter: filering ['a', 'apple', 'racecar', 'hannah', 'banana'] with is_palindrome is ['a', 'racecar', 'hannah'] filtering [0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48] with is_even is [0, 6, 12, 18, 24, 30, 36, 42, 48] $python3 lab6.py Enter a string: banana Enter a substring to count: ana Entera starting index: 1 ana occurred in banana 1 times starting from index 1. ana occurred in banana 1 times starting from index 1. [... the same in all runs for find_smallest and myfilter.]
def count_non_overlapping(s, substr, start): II II || Return the number of non-overlapping occurrences of substr in s starting from the index start. You can not use str method s.count. return 0 def count_non_overlapping_m(s, substr, start): II II || Return the number of non-overlapping occurrences of substr in s starting from the index start. You must use a one-liner implementation by using s.count(). II II || return 0 def find_smallest(t): Return the smallest element in given list t. Return None if t is empty return t[0] def myfilter(t, cond): t is a list, cond(x) is a boolean function that returns True or False given an element x in t. Return a new list that only includes element x from t such cond(x) is True. II II || return t For the implementation of count_non_overlapping(), you CAN NOT use any string method such as s.find(), s.count(), s.index(). Be aware of handling of start index in particular when it is negative. Be aware that you are to find non- overlapping matches.
Transcribed Image Text:def count_non_overlapping(s, substr, start): II II || Return the number of non-overlapping occurrences of substr in s starting from the index start. You can not use str method s.count. return 0 def count_non_overlapping_m(s, substr, start): II II || Return the number of non-overlapping occurrences of substr in s starting from the index start. You must use a one-liner implementation by using s.count(). II II || return 0 def find_smallest(t): Return the smallest element in given list t. Return None if t is empty return t[0] def myfilter(t, cond): t is a list, cond(x) is a boolean function that returns True or False given an element x in t. Return a new list that only includes element x from t such cond(x) is True. II II || return t For the implementation of count_non_overlapping(), you CAN NOT use any string method such as s.find(), s.count(), s.index(). Be aware of handling of start index in particular when it is negative. Be aware that you are to find non- overlapping matches.
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