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Facebook Hacker Cup 2015: Qualification Round problem analysis en

By Soultaker on maandag 12 januari 2015 09:50 - Comments (5)
Category: Programming Contests, Views: 12.870

Another year, another Facebook Hacker Cup, and another opportunity for smart people who know at least one programming language to put their problem solving skills to the test. As in earlier years, I will post a short analysis along with my solution for each problem, and I'll add some follow-up questions that people who have already solved the problems might find interesting.

A. Cooking the Books

Problem Statement (official link).

The qualification round starts off easily. For the first problem, we're given a number, and we're supposed to turn it into the highest/lowest value possible, by swapping just two digits. Warning: spoilers ahead!

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