This document contains links to a problem on the Algorithm Problem Solving website Baekjoon and to a page about the Erdos-Szekeres theorem from MathWorld. It also lists examples of possible orderings for sets of numbers from 1 to 13 and suggests an alternative ordering.

1. choi@startlink.io

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https://www.acmicpc.net/problem/1201

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https://www.acmicpc.net/problem/1201

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• http://mathworld.wolfram.com/Erdos-­‐SzekeresTheorem.html
https://www.acmicpc.net/problem/1201

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https://www.acmicpc.net/problem/1201

6. https://www.acmicpc.net/problem/1201

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1. 1 2 3 4 5 6 7 8 9 10 11 12 13
2. [1 2 3] [4] [5 6 7 8] [9 10] [11 12 13]
3. [3 2 1] [4] [8 7 6 5] [10 9] [13 12 11]
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• [1] [2] [5 4 3] [9 8 7 6] [13 12 11 10]
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https://www.acmicpc.net/problem/1201

8. • https://gist.github.com/Baekjoon/d62c5fc14d8f7f3cc68f
https://www.acmicpc.net/problem/1201