For problem A you will be writing two different functions to iterate through a string. One function will use recursion and the other will use a loop. Write two functions rec_sum_digits and loop_sum_digits both of which accept a single string argument st. Both functions should return an integer representing the sum of all of the digits in the string. If there are no digits in the string the function should return 0. You are permitted to use the string method.isdigit() to check whether a given character is a digit. Constraints: • loop_sum_digits digits must use either a for loop or a while loop to the solve the problem • loop_sum_digits digits must not use recursion to solve the problem digits must use recursion to solve the problem rec_sum_digits • • rec_sum_digits must not use any kind of for or while loop to solve the problem Given the same inputs rec_sum_digits and loop_sum_digits should return the same value (given enough time and computer memory, and no maximum recursion depth) • You cannot use the sum function Examples: >>> rec_sum_digits("145") 10 >>> loop_sum_digits("145") 10 >>> rec_sum_digits("The Sum of 3 and 17 is 20") 13

For problem A you will be writing two different functions to iterate through a string. One function will use recursion and the other will use a loop. Write two functions rec_sum_digits and loop_sum_digits both of which accept a single string argument st. Both functions should return an integer representing the sum of all of the digits in the string. If there are no digits in the string the function should return 0. You are permitted to use the string method.isdigit() to check whether a given character is a digit. Constraints: • loop_sum_digits digits must use either a for loop or a while loop to the solve the problem • loop_sum_digits digits must not use recursion to solve the problem digits must use recursion to solve the problem rec_sum_digits • • rec_sum_digits must not use any kind of for or while loop to solve the problem Given the same inputs rec_sum_digits and loop_sum_digits should return the same value (given enough time and computer memory, and no maximum recursion depth) • You cannot use the sum function Examples: >>> rec_sum_digits("145") 10 >>> loop_sum_digits("145") 10 >>> rec_sum_digits("The Sum of 3 and 17 is 20") 13

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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