User jianfeng

Points breakdown

10 / 10

AC | PY3

COCI '16 Contest 2 #3 Nizin

on Nov. 19, 2025, 10:12 p.m.

10pp

weighted 100% (10pp)

100 / 100

AC | PY3

DMOPC '18 Contest 5 P3 - A Familiar Problem

on Feb. 2, 2026, 11:56 p.m.

7pp

weighted 95% (6.6pp)

100 / 100

AC | PY3

DMOPC '16 Contest 4 P2 - Systests

on Feb. 2, 2026, 11:32 p.m.

7pp

weighted 90% (6.3pp)

100 / 100

AC | PY3

DMOPC '18 Contest 2 P4 - Damage Output

on Jan. 31, 2026, 7:01 p.m.

7pp

weighted 86% (6.0pp)

8 / 8

AC | PY3

VMSS Pre-Windsor P7 - Going Back to the Definitions

on Jan. 25, 2026, 1:26 a.m.

7pp

weighted 81% (5.7pp)

100 / 100

AC | PY3

TSS Club Fair 2017 Problem B

on Jan. 24, 2026, 6:37 p.m.

7pp

weighted 77% (5.4pp)

100 / 100

AC | PYPY3

Back To School '18: Letter Frequency

on Jan. 24, 2026, 5:47 p.m.

7pp

weighted 74% (5.1pp)

15 / 15

AC | PY3

CCC '24 J5 - Harvest Waterloo

on Jan. 17, 2026, 6:30 p.m.

7pp

weighted 70% (4.9pp)

15 / 15

AC | PYPY3

CCC '25 J5 - Connecting Territories

on Jan. 13, 2026, 2:22 a.m.

7pp

weighted 66% (4.6pp)

15 / 15

AC | PY3

Mock CCC '14 S3 - Spreadsheet Sorting

on Dec. 17, 2025, 1:51 a.m.

7pp

weighted 63% (4.4pp)

Problem	Score
CCC '00 S2 - Babbling Brooks	7 / 7
CCC '01 J2 - Mod Inverse	3 / 3
CCC '02 J2 - AmeriCanadian	3 / 3
CCC '03 S2 - Poetry	5 / 5
CCC '04 S1 - Fix	5 / 5
CCC '05 S1 - Snow Calls	5 / 5
CCC '06 J3 - Cell-Phone Messaging	3 / 3
CCC '07 J4 - Anagram Checker	5 / 5
CCC '08 J2 - Do the Shuffle	3 / 3
CCC '10 S2 - Huffman Encoding	5 / 5
CCC '11 J3 - Sumac Sequences	5 / 5
CCC '11 J4 - Boring Business	7 / 7
CCC '12 J4 - Big Bang Secrets	3 / 3
CCC '13 J1 - Next in line	3 / 3
CCC '13 J2 - Rotating letters	3 / 3
CCC '13 J4 - Time on task	5 / 5
CCC '13 S1 - From 1987 to 2013	5 / 5
CCC '13 S2 - Bridge Transport	3.667 / 5
CCC '14 S2 - Assigning Partners	5 / 5
CCC '14 S3 - The Geneva Confection	7 / 7
CCC '15 J1 - Special Day	3 / 3
CCC '15 J2 - Happy or Sad	3 / 3
CCC '15 J3 - Rövarspråket	5 / 5
CCC '15 J4 - Wait Time	5 / 5
CCC '16 J1 - Tournament Selection	3 / 3
CCC '16 J2 - Magic Squares	3 / 3
CCC '16 J3 - Hidden Palindrome	5 / 5
CCC '16 J4 - Arrival Time	5 / 5
CCC '16 S1 - Ragaman	3 / 3
CCC '17 J1 - Quadrant Selection	3 / 3
CCC '17 J2 - Shifty Sum	3 / 3
CCC '17 J3 - Exactly Electrical	3 / 3
CCC '17 J4 - Favourite Times	5 / 5
CCC '17 S1 - Sum Game	3 / 3
CCC '17 S2 - High Tide, Low Tide	5 / 5
CCC '18 J1 - Telemarketer or not?	3 / 3
CCC '18 J2 - Occupy parking	3 / 3
CCC '18 J3 - Are we there yet?	3 / 3
CCC '18 S1 - Voronoi Villages	3 / 3
CCC '18 S2 - Sunflowers	5 / 5
CCC '19 J1 - Winning Score	3 / 3
CCC '19 J2 - Time to Decompress	3 / 3
CCC '19 J3 - Cold Compress	5 / 5
CCC '19 S1 - Flipper	3 / 3
CCC '20 J3 - Art	3 / 3
CCC '20 J4 - Cyclic Shifts	5 / 5
CCC '20 S1 - Surmising a Sprinter's Speed	5 / 5
CCC '21 J3 - Secret Instructions	5 / 5
CCC '21 J4 - Arranging Books	7 / 7
CCC '21 S1 - Crazy Fencing	5 / 5
CCC '21 S2 - Modern Art	7 / 7
CCC '22 J3 - Harp Tuning	5 / 5
CCC '22 S1 - Good Fours and Good Fives	5 / 5
CCC '22 S2 - Good Groups	5 / 5
CCC '23 J3 - Special Event	5 / 5
CCC '23 S1 - Trianglane	5 / 5
CCC '24 J1 - Conveyor Belt Sushi	3 / 3
CCC '24 J2 - Dusa And The Yobis	3 / 3
CCC '24 J3 - Bronze Count	5 / 5
CCC '24 J4 - Troublesome Keys	7 / 7
CCC '24 J5 - Harvest Waterloo	7 / 7
CCC '24 S1 - Hat Circle	3 / 3
CCC '24 S2 - Heavy-Light Composition	5 / 5
CCC '25 J3 - Product Codes	5 / 5
CCC '25 J4 - Sunny Days	5 / 5
CCC '25 J5 - Connecting Territories	7 / 7
CCCHK '08 J1 - Best fish	3 / 3
CCCHK '08 J2 - Lucky Number	3 / 3
CCCHK '08 J3 - Phone book	5 / 5
CCCHK '15 J3 - Queens can't attack me!	5 / 5

Problem	Score
COCI '06 Contest 6 #3 Maraton	5 / 5
COCI '08 Contest 3 #2 Kemija	5 / 5
COCI '13 Contest 5 #3 Eksplozjia	5 / 10
COCI '16 Contest 2 #3 Nizin	10 / 10
COCI '17 Contest 1 #3 Lozinke	5 / 5
COCI '18 Contest 5 #2 Jarvis	5 / 5
COCI '20 Contest 6 #1 Bold	5 / 5

Problem	Score
DMOPC '14 Contest 2 P4 - Deforestation	5 / 5
DMOPC '14 Contest 7 P2 - Tides	5 / 5
DMOPC '16 Contest 4 P2 - Systests	7 / 7
DMOPC '17 Contest 2 P2 - Balance	5 / 5
DMOPC '18 Contest 1 P0 - Sorting	3 / 3
DMOPC '18 Contest 1 P1 - Sorting	5 / 5
DMOPC '18 Contest 1 P2 - Sorting	5 / 5
DMOPC '18 Contest 2 P4 - Damage Output	7 / 7
DMOPC '18 Contest 5 P3 - A Familiar Problem	7 / 7
DMOPC '19 Contest 5 P1 - Conspicuous Cryptic Checklist	5 / 5
DMOPC '20 Contest 2 P1 - Laugh Graphs	5 / 5
DMOPC '20 Contest 7 P1 - Bob and Balance	7 / 7
DMOPC '21 Contest 7 P1 - Chika Grids	5 / 5
DMOPC '22 Contest 1 P1 - Up-down Sequence	5 / 5

Problem	Score
DWITE '07 R2 #4 - All Is Balanced	5 / 5
DWITE '08 R3 #2 - Wordcount++	5 / 5
DWITE '10 R5 #2 - Safe from Rooks	5 / 5

Problem	Score
ECOO '19 R1 P1 - Free Shirts	5 / 5
ECOO '19 R2 P1 - Email	5 / 5

User jianfeng

Points breakdown

AAC (5 points)

BlueBook (3 points)

CCC (306.667 points)

Classics (3 points)

COCI (40 points)

DMOPC (76 points)

DWITE (15 points)

ECOO (10 points)

ICPC (7 points)

Mock CCC (62 points)

SAC Coding Challenge (22 points)

Seasonal (21 points)

TLE (5 points)

Uncategorized (89 points)

Woburn Challenge (5 points)

Problem	Score
Mock CCC '20 S2 - Flipper Redux	7 / 7
Mock CCC '22 Contest 1 J3 - String Crossing Maximization	7 / 7
Mock CCC '22 Contest 2 J1 - Opening Ceremony	3 / 3
Mock CCC '22 Contest 2 J2 - Snowboarding Championship	3 / 3
Mock CCC '22 Contest 2 J3 - Figure Skating Fun	5 / 5
Mock CCC '23 Contest 1 J1 - Final Velocity	3 / 3
Mock CCC '23 Contest 1 J2 - Healthy Schedule	3 / 3
Mock CCC '23 Contest 1 J3 - Pairing Gifts	5 / 5
Mock CCC '14 S3 - Spreadsheet Sorting	7 / 7
Mock CCC '18 Contest 1 J2 - A Substring Problem	3 / 3
Mock CCC '18 Contest 1 J4/S2 - A Square Problem	5 / 5
Mock CCC '18 Contest 3 J1 - A Sum Problem	3 / 3
Mock CCC '18 Contest 3 J2 - A Palindrome Problem	3 / 3
Mock CCC '18 Contest 3 J3/S1 - A String Problem	5 / 5

Problem	Score
SAC '22 Code Challenge 3 Junior P2 - Normal Lines	3 / 3
SAC '22 Code Challenge 3 P1 - Hair Hazards	3 / 3
SAC '22 Code Challenge 3 P3 - Bob Sort	5 / 5
SAC '22 Code Challenge 4 Junior P1 - Obligatory DeMello Problem	3 / 3
SAC '22 Code Challenge 4 Junior P2 - Obligatory Geometry Problem	3 / 3
SAC '22 Code Challenge 5 Junior P3 - Media List	5 / 5

Problem	Score
Back From Summer '17 P2: Crayola Lightsaber	7 / 7
Back To School '18: Letter Frequency	7 / 7
New Year's '17 P1 - Mr. N and Presents	7 / 7

Problem	Score
Appleby Contest '19 P4 - Rectangles	7 / 7
Arcadia Computing Contest 1 P3 - ScanTron	5 / 5
Another Sorting	5 / 5
Lexicographically Least Substring	5 / 5
BPC 1 S1 - Homework Questions	5 / 5
Cheerio Contest 1 J3 - Festival	5 / 5
Count The Triplets	7 / 7
Modulo Sort	5 / 5
Postfix Notation	7 / 7
VMSS Pre-Windsor P7 - Going Back to the Definitions	7 / 7
Singularity Cup P1 - Maximum Permutation Product	5 / 5
The Cosmic Era P2 - Uneven Sand	5 / 5
The Cosmic Era P3 - Battle Positions	7 / 7
TSS Club Fair 2017 Problem B	7 / 7
UTS Open '18 P3 - Restaurants	7 / 7