deletions | additions       diff --git a/a) As few classrooms as possible.tex b/a) As few classrooms as possible.tex  index 6fce92a..190c81d 100644  --- a/a) As few classrooms as possible.tex  +++ b/a) As few classrooms as possible.tex 
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+ 1 \left[ c_1 + \sum_{i=1}^{n-1} \Big[ \log{i} \Big] + \log{1} \right]\\  &= c_0 + n\log{n} + \sum_{i=1}^{n-1} \left[ c_1 + \log{i} + c_2i \right]  + \left[ c_1 + \sum_{i=1}^{n-1} \Big[ \log{i} \Big] + \log{1} \right]\\  &= c_0 + n\log{n} + nc_1 + \sum_{i=1}^{n-1} \left[ \Big[  c_1 + \log{i} + c_2i \right] \Big]  + \left[ \sum_{i=1}^{n-1} \Big[ \log{i} \Big] + \log{1} \right]\\  \end{align*}  \end{subequations}