Week 3: Data Structures (練習題)
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[UVa 727 Equation](https://uva.onlinejudge.org/external/7/727.pdf)
[UVa OJ 673 Parentheses Balance](https://uva.onlinejudge.org/external/6/673.pdf)
[UVa 10901 Ferry Loading III](https://uva.onlinejudge.org/external/109/10901.pdf)
[UVa 11034 Ferry Loading IV](https://uva.onlinejudge.org/external/110/11034.pdf)
[UVa 11995 I Can Guess the Data Structure!](https://uva.onlinejudge.org/external/119/11995.pdf) [^priority_queue]
[UVa OJ 11988 Broken Keyboard (a.k.a. Beiju Text)](https://uva.onlinejudge.org/external/119/11988.pdf)
[UVa OJ 245 Uncompress](https://uva.onlinejudge.org/external/2/245.pdf)
[^priority_queue]: `priority_queue` 的用法可以去 cplusplus.com 或第四週教材查