Move to days directory

days/1/solution.nix

@@ -1,4 +1,4 @@
-with import ../util.nix;
+with import ../../util.nix;
 
 let
   input = readFile ./input;

days/2/solution.nix

@@ -1,4 +1,4 @@
-with import ../util.nix;
+with import ../../util.nix;
 
 let
   # read file

days/3/solution.nix

@@ -1,4 +1,4 @@
-with import ../util.nix;
+with import ../../util.nix;
 
 let
   # read input

days/4/solution.nix

@@ -1,4 +1,4 @@
-with import ../util.nix;
+with import ../../util.nix;
 
 let
   # read input

days/5/solution.nix

@@ -1,4 +1,4 @@
-with import ../util.nix;
+with import ../../util.nix;
 
 let
   # read input

runAll.sh

@@ -1,7 +1,10 @@
 #! /bin/sh
 
-for i in {1..5}
+days_dir="./days"
+days_count=$(find $days_dir -maxdepth 1 -type d -not -path $days_dir | wc -l)
+
+for i in $(seq 1 $days_count);
 do
   echo "--- Day $i ---"
-  nix eval -f $i/solution.nix
+  nix eval -f $days_dir/$i/solution.nix
 done