## 第六次（7/30 ~ 8/6）
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- [A. 費式數列](https://hackmd.io/@problem-solved-sgroup/rJW8AOLZt)
- [B. 理組情侶密碼](https://hackmd.io/@problem-solved-sgroup/Sy9vCdIZK)
- [C. 組合](https://hackmd.io/@problem-solved-sgroup/Hy3uR_I-t)
- [D. 傷心水族箱](https://hackmd.io/@problem-solved-sgroup/rkG5AuUZY)
- [E. 核戰爭](https://hackmd.io/@problem-solved-sgroup/ryQ2RuI-K)