# 2019q1 Homework3 (review) contributed by < `johnnylord` > ###### tags: `sysprog2019` ## 回顧題組 * [2019q1 第 4 週測驗題 (下)](https://hackmd.io/s/BJKk1ANv4) * [Reference Counting](https://hackmd.io/s/rkzbT2Eu4) * [2019q1 第 3 週測驗題 (上)](https://hackmd.io/s/S1weT4iLE) * [Memory Copy](https://hackmd.io/s/Sy9eC3VdE) * [2019q1 第 1 週測驗題](https://hackmd.io/s/SyrZMGYr4) * [Data Alignment](https://hackmd.io/s/B1rjTnNuN)
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