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Logfile

Base structures

  • Library is imported from solutions for 2017.

Day 1

  • Walking on grid with field.Step4.

Day 2

  • Walking on grid filled by field.FillFromString.

Day 3

  • Simple triangle check.

Day 4

  • sort.Stable. Btw, it's internals are worth checking.

Day 5

  • crypto/md5.Sum.
  • No need to convert hash to string to check zeroes.
  • Optimize: no need to use strconv.Itoa either.

Day 6

  • Generic Frequency map should come in handy. This was fastest solved task in year 2016 (top100 - 375s), due to some languages have library functions to get most frequent and least frequent value in set.

Day 7

  • Search for ABBA-type substrings, ABA and BAB-type correlations.