2021 寒假作業 個人練習四
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## Brute Force -- Part 2
- [ ] [islands](https://open.kattis.com/problems/islands)
- [ ] [walls](https://open.kattis.com/problems/walls)
- [ ] [prinova](https://open.kattis.com/problems/prinova)
- [ ] [growlinggears](https://open.kattis.com/problems/growlinggears)
- [ ] [zamka](https://open.kattis.com/problems/zamka)
- [ ] [crackingrsa](https://open.kattis.com/problems/crackingrsa)
- [ ] [robotopia](https://open.kattis.com/problems/robotopia)
- [ ] [musicalchairs](https://open.kattis.com/problems/musicalchairs)
- [ ] [toys](https://open.kattis.com/problems/toys)
- [ ] [carvet](https://open.kattis.com/problems/carvet)
- [ ] [fruitbaskets](https://open.kattis.com/problems/fruitbaskets)
## Prune and Search
- [ ] [outofsorts](https://open.kattis.com/problems/outofsorts)
- [ ] [synchronizinglists](https://open.kattis.com/problems/synchronizinglists)
- [ ] [firefly](https://open.kattis.com/problems/firefly)
- [ ] [monk](https://open.kattis.com/problems/monk)
- [ ] [suspensionbridges](https://open.kattis.com/problems/suspensionbridges)
- [ ] [htoo](https://open.kattis.com/problems/htoo)
- [ ] [rainfall2](https://open.kattis.com/problems/rainfall2)
- [ ] [svada](https://open.kattis.com/problems/svada)
- [ ] [ceiling](https://open.kattis.com/problems/ceiling)
- [ ] [cantor](https://open.kattis.com/problems/cantor)
- [ ] [qanat](https://open.kattis.com/problems/qanat)