Documented stuff

2024/day-2/solution-2.awk

@@ -5,15 +5,19 @@ BEGIN {
   safe = 0
 }
 {
+  # Set initial order, 0 for asc, 1 for desc
   if ($2 > $1) {
     order = 0
   } else {
     order = 1
   }
-  skip = 0
+
+  # Loop through items on each line
   for (i = 1; i < NF; i++) {
     j = i + 1
     k = i + 2
+
+    # See if order is matched
     if ( $i < $j && order == 1 ) {
       if ( $i < $k && order == 1 ) {
         next
@@ -23,6 +27,8 @@ BEGIN {
         next
       }
     }
+
+    # Get absolute diff value
     if ( $i < $j ) {
       diff = $j - $i
     } else { 
@@ -33,6 +39,8 @@ BEGIN {
     } else { 
       diff2 = $i - $k
     }
+
+    # Verify diff within parameters
     if (diff > 3 || diff < 1) {
       if (diff2 > 3 || diff2 < 1) {
         next
@@ -40,6 +48,7 @@ BEGIN {
     }
 
   }
+  # If all pass, increment safe counter
   safe += 1
 }
 END {