other cool repos + 07 online solutions

07_ONLINE_01_p1.awk

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+# https://old.reddit.com/r/adventofcode/comments/zesk40/2022_day_7_solutions/iz8ppox/?context=3
+
+{
+  # checked: / only occurs on first line:
+  if ($0 ~ /^\$ cd \//)
+    # root dir = #1 ; debug: name[1] = "/"
+    at = i = 1
+  else if ($0 ~ /^\$ cd \.\./)
+    at = up[at]
+  else if ($0 ~ /^\$ cd/) {
+    up[++i] = at
+    at = i  # debug: name[i] = $3
+  }
+  else if ($1 ~ /^[0-9]+$/)
+    tot[at] += $1
+}
+
+END {
+  # add subdir totals
+  for (i in up) {
+    at = i
+    while (at != 1) {
+      tot[up[at]] += tot[i]
+      at = up[at]
+    }
+  }
+
+  for (i in tot) {
+    if (tot[i] <= 100000)
+      sumtot += tot[i]
+  }
+  print sumtot
+}

07_ONLINE_01_p2.awk

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+# https://old.reddit.com/r/adventofcode/comments/zesk40/2022_day_7_solutions/iz8ppox/?context=3
+
+{
+  # checked: / only occurs on first line:
+  if ($0 ~ /^\$ cd \//)
+    # root dir = #1 ; debug: name[1] = "/"
+    at = i = 1
+  else if ($0 ~ /^\$ cd \.\./)
+    at = up[at]
+  else if ($0 ~ /^\$ cd/) {
+    up[++i] = at
+    at = i  # debug: name[i] = $3
+  }
+  else if ($1 ~ /^[0-9]+$/)
+    tot[at] += $1
+}
+
+END {
+  # add subdir totals
+  for (i in up) {
+    at = i
+    while (at != 1) {
+      tot[up[at]] += tot[i]
+      at = up[at]
+    }
+  }
+
+  PROCINFO["sorted_in"] = "@val_num_asc"
+  for (i in tot)
+    if (((70000000 - tot[1]) + tot[i]) > 30000000) {
+      print tot[i]
+      exit 0
+    }
+}

other-cool-repos.md

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+# Other Cool AOC2022 Repos
+- https://github.com/TOTBWF/advent-of-code-2022