APT Grading: CompSci 201, Fall 2025

This is the webpage for grading and submitting your APTs.

Check Grades

Problem Set 1	Details
APT-1 , September 4
Totality
AccessLevel	WOTO
Gravity	WOTO
Starter
CirclesCountry	challenge/discuss
Test file:

Problem Set 2	Details
APT-2 , September 11
DNAMaxNucleotide
SandwichBar
SimpleWordGame	woto
TxMsg	woto
Common	challenge
Test file:

Problem Set 3	Details
APT-3 , September 18
StringCuts
True Space
CounterAttack	woto
BigWord	woto
PrefixCode	challenge
Test file:

Problem Set 4	Details
APT-4 , September 25
Anonymous	woto
MemberCheck
Encryption	some class woto
SoccerLeagues
Isomorphic Words	challenge
Test file:

Practice	Details
APT Quiz 1 Practice
EndOfWords	level 1
Measuring	level 1
Compound	level 2
HeavyChar	level 2
SimpleHash	level 3
SplitCount	level 3
Test file:

Problem Set 5	Details
APT-5 , October 16 (optional/extra)
PairDown	woto
SetAside	woto
Closet
Aaagmnrs
Thesaurus	big challenge
Test file:

Problem Set di	Details
APT-discussion October 10 (practice, extra)
List2Long
ListParity
AddSome
Test file:

Problem Set 6	Details
APT-6 , October 23
ListCount	woto
ListSum	woto
ListsEqual
AlphaLength	woto
MergeLists	challenge
Test file:

Problem Set 7	Details
APT-7 , October 30 (optional/extra)
ListStretch
DoubleList
ListLastFirst
RemoveMin
List2Long
ListParity
SortedListRemoval	challenge
Test file:

Problem Set 8	Details
APT-8 , November 6
LengthSort
SortByFreqs
SortedFreqs
MedalTable
SyllableSort	challenge
TournamentRanker	challenge
Test file:

Problem Set 9	Details
APT-9 , November 13
TreeCount
PathSum
LevelCount
HeightLabel
SortedLeaves	challenge
Test file:

Practice	Details
APT Quiz 2 Practice
EZSort	level 1
InternalSum	level 1
SimpleList	level 1
ComboList	level 2
LongestPath	level 3
Test file:

Practice Q	Details
APT Quiz 2 Discussion/Practice
LetterCountSort
AddAt
SortedLeaves
Test file:

Problem Set 10	Details
APT-10, December 4
UniqueTreeValues
TreeTighten
LeafTrails	use TreeMap
LeafCollector	loop AND recursion
AllPaths	challenge
Test file:

Problem Set 11	Details
APT-11, December 5 (optional/extra)
HuffmanDecoding
FriendScore
OlympicCandles	greedy
BSTCount	memoize, bit.ly/201fall19-apt-hah (copy paste)
Internet	encouraged, challenging, graphs
Ograph
ListShift	fall 18 aptquiz
AlphaPath	fall 18 aptquiz
FindPath	fall18 aptquiz
GridGame	challenge backtracking
RatRoute	challenge backtracking
NumberFill	challenge backtracking
FloodRelief	challenge backtracking
WordLadder	bfs in class, challenge
AllWordLadders	big challenge
SpreadingNews	challenge/hint bit.ly/201fall19-apt-hah (copy paste)
AuntUncle	challenge
Test file: