https://www.acmicpc.net/problem/8146 8146번: Tetris Attack A puzzle called "Tetris Attack" has lately become a very popular game in Byteotia. The game itself is highly sophisticated, so we shall only introduce its simplified rules: the player is given a stack of 2n elements, placed one on another and marked with n www.acmicpc.net 일단 여러가지 관찰을 해본게 있는데, 1. \(x..y..x..y\)의 경우엔, \(x..x...y..y\) 경우가 되거..
https://www.acmicpc.net/problem/6164 6164번: Hotel The cows are journeying north to Thunder Bay in Canada to gain cultural enrichment and enjoy a vacation on the sunny shores of Lake Superior. Bessie, ever the competent travel agent, has named the Bullmoose Hotel on famed Cumberland Street as their vacatio www.acmicpc.net 딱 보면 뭔가 금광세그를 박아야 할 것 같은 느낌이 든다. 그래서 한번 금광세그를 박았을때 뭘 어떻게 해야 할지를 적어보면, struc..
https://www.acmicpc.net/problem/18919 18919번: Allowed Swaps You are given a permutation of length $N$ and a list of allowed swaps. Each swap is defined by two distinct integers between 1 and $N$, inclusive --- positions in the permutation that can be swapped. Your task is to sort the permutation using no more than www.acmicpc.net \(x, y\) 쌍이 들어오면 \(x\) 와 \(y\)를 이어주는 간선을 만들어준다. 그러면, 그래프가 형성되는데, 사..
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