Given a string , return the substring with the largest sum that exists within . If there are multiple substrings with equally large sums, return the first one that occurs. The substring could just be the whole string itself, or it could be empty.

Given a string , return the substring with the largest sum that exists within . If there are multiple substrings with equally large sums, return the first one that occurs. The substring could just be the whole string itself, or it could be empty.

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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Question

How to solve? Please you can't use lists, list methods, or while loops and also means that you can't use string methods that work with lists. You can't use try/except and break/continue statements.

def substring_with_largest_sum(string: str) -> str:
Given a string <string>, return the substring with the largest sum that exists within <string>. If there are
multiple substrings with equally large sums, return the first one that
occurs. The substring could just be the whole string itself, or it could
be empty.
For example, given the string "321",
there are 7 possible substrings:
"3", "2", "1", "32", "21", "321". By using your understanding of loops, implement this function
to return the substring with the largest sum by checking all of the
substrings of the input string. So, "32" evaluates to 1, "21" also
evaluates to 1, "321" evaluates to 2, resulting in "3" being the largest
possible substring as it evaluates to 3.
II I| ||

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