One day, Fred and his N friends were playing a card game in which each player throws a cardwith a number written on it. The cards are such that a number X is written on front of the card, and the negative of that number is written on the back side of the card. This game has the following rules: Each of the N players is asked to throw a card. After at the N cards are thrown. Fred has to flip one or more cards in consecutive order, only once. Your task is to help Fred flip the cards in such a way that the sum of the numbers, on front face of the cards is the maximum.

One day, Fred and his N friends were playing a card game in which each player throws a cardwith a number written on it. The cards are such that a number X is written on front of the card, and the negative of that number is written on the back side of the card. This game has the following rules: Each of the N players is asked to throw a card. After at the N cards are thrown. Fred has to flip one or more cards in consecutive order, only once. Your task is to help Fred flip the cards in such a way that the sum of the numbers, on front face of the cards is the maximum.

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

Python Code Only:
One day, Fred and his N friends were playing a card game in which each player throws a cardwith a
number written on it.
The cards are such that a number X is written on front of the card, and the negative of that number is
written on the back side of the card. This game has the following rules:
Each of the N players is asked to throw a card. After at the N cards are thrown. Fred has to flip one or
more cards in consecutive order, only once.
Your task is to help Fred flip the cards in such a way that the sum of the numbers, on front face of the
cards is the maximum.
Input:
-1 23 4 -5
Output:
13

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