<?php

//this is for converting between challenge_id and task_id

$cid2tid_l=[

               "test-1"=>[
                   "cid_7"=>"tid_0",
                   "cid_1"=>"tid_1",
                   "cid_2"=>"tid_2",
                   "cid_3"=>"tid_3",
                   "cid_4"=>"tid_4",
                   "cid_5"=>"tid_5",
                   "cid_6"=>"tid_6",
               ],

               "wood-1"=>[
                   "cid_39"=>"tid_1",
                   "cid_40"=>"tid_2",
                   "cid_43"=>"tid_3",
                   "cid_42"=>"tid_4",
                   "cid_44"=>"tid_5",
                   "cid_41"=>"tid_6",
               ],

               "wood-2"=>[
                   "cid_1"=>"tid_1",
                   "cid_2"=>"tid_2",
                   "cid_3"=>"tid_3",
                   "cid_4"=>"tid_4",
                   "cid_5"=>"tid_5",
                   "cid_6"=>"tid_6",
               ],

           ];