User ypcpy

Points breakdown

100 / 100

AC | C++20

NOI '01 P2 - Artillery Positioning

on Sept. 30, 2025, 6:12 p.m.

20pp

weighted 100% (20pp)

100 / 100

AC | C++20

K-th Minimum Number

on Dec. 22, 2025, 5:15 p.m.

17pp

weighted 95% (16pp)

15 / 15

AC | C++20

CCC '16 S4 - Combining Riceballs

on Jan. 3, 2026, 6:17 p.m.

15pp

weighted 90% (14pp)

25 / 25

AC | C++20

CCO '15 P2 - Artskjid

on Jan. 2, 2026, 6:02 p.m.

15pp

weighted 86% (13pp)

10 / 10

AC | C++20

COCI '18 Contest 2 #3 Deblo

on July 11, 2025, 7:45 a.m.

15pp

weighted 81% (12pp)

100 / 100

AC | C++20

NOI '02 P1 - Legend of the Galactic Heroes

on March 5, 2025, 3:51 a.m.

15pp

weighted 77% (12pp)

100 / 100

AC | C++20

COI '06 #1 Patrik

on Dec. 19, 2025, 6:13 p.m.

12pp

weighted 74% (8.8pp)

200 / 200

AC | C++20

COCI '06 Contest 1 #5 Bond

on Dec. 19, 2025, 11:12 a.m.

12pp

weighted 70% (8.4pp)

100 / 100

AC | C++20

Baltic OI '03 P4 - The Gangs

on March 6, 2025, 6:45 a.m.

12pp

weighted 66% (8.0pp)

10 / 10

AC | C++20

COCI '16 Contest 3 #3 Kroničan

on Jan. 4, 2026, 9:18 p.m.

10pp

weighted 63% (6.3pp)

Problem	Score
BlueBook - Max is Last	3 / 3
BlueBook - Power Base	3 / 3
BlueBook - Powers of 2	3 / 3
BlueBook - Column of Numbers	3 / 3
BlueBook - Digits and Sums	3 / 3
BlueBook - Exact Divisors	3 / 3
BlueBook - 10 Primes on a Line	5 / 5
BlueBook - Max	3 / 3
BlueBook - Mode	3 / 3
BlueBook - Magic Square	3 / 3
BlueBook - Triangle	3 / 3
BlueBook - Sieve	5 / 5
BlueBook - Min	3 / 3
BlueBook - Digits	3 / 3
BlueBook - Prime	3 / 3
BlueBook - Multiple	3 / 3

Problem	Score
CCC '16 J3 - Hidden Palindrome	5 / 5
CCC '16 S4 - Combining Riceballs	15 / 15
CCC '21 S2 - Modern Art	7 / 7
CCC '23 S2 - Symmetric Mountains	7 / 7
CCCHK '15 S1 - Finding number of pairs	7 / 7

Problem	Score
CCO '03 P5 - Longest Substring	7 / 7
CCO '15 P2 - Artskjid	15 / 15
CCO '97 P1 - Palindromes	10 / 10

Problem	Score
NOI '00 P4 - Trie	7 / 7
NOI '01 P2 - Artillery Positioning	20 / 20
NOI '02 P1 - Legend of the Galactic Heroes	15 / 15
NOIP '04 P2 - Combine Fruit	5 / 5
NOIP '04 P3 - Chorus Formation	10 / 10
NOIP '07 P1 - Counting Numbers	3 / 3
NOIP '99 Junior P1 - Cantor Table	5 / 5

Problem	Score
Sorting	3 / 3
Next Prime	5 / 5
Longest Common Subsequence	7 / 7
Unique Elements	3 / 3
Single Source Shortest Path	7 / 7

User ypcpy

Points breakdown

Baltic OI (12 points)

BlueBook (52 points)

CCC (41 points)

CCO (32 points)

China NOI (65 points)

Classics (25 points)

COCI (66 points)

CSPC (3 points)

DMOPC (16 points)

DWITE (5 points)

FHC (10 points)

Google Code Jam (67 points)

IOI (27 points)

Mock CCC (6 points)

Olympiads School (7 points)

SAC Coding Challenge (10 points)

SIUCF (5 points)

Uncategorized (97 points)

Waterloo Local (23 points)

Woburn Challenge (5 points)

Problem	Score
COCI '06 Contest 1 #5 Bond	12 / 12
COCI '08 Contest 2 #3 Perket	7 / 7
COCI '16 Contest 3 #3 Kroničan	10 / 10
COCI '18 Contest 2 #3 Deblo	15 / 15
COCI '19 Contest 5 #5 Zapina	10 / 10
COI '06 #1 Patrik	12 / 12

Problem	Score
DMOPC '17 Contest 2 P1 - 0-1 Knapsack	3 / 3
DMOPC '19 Contest 1 P0 - Range Finding	3 / 3
DMOPC '19 Contest 3 P1 - Mode Finding	5 / 5
DMPG '17 S1 - Molly and Difference	5 / 5

Problem	Score
Google Code Jam '18 Qualification Round Problem A - Saving The Universe Again	5 / 5
Google Code Jam '18 Qualification Round Problem B - Trouble Sort	7 / 7
Google Code Jam '19 Qualification Round Problem C - Cryptopangrams	10 / 10
Google Code Jam '20 Qualification Round Problem A - Vestigium	3 / 3
Google Code Jam '20 Qualification Round Problem B - Nesting Depth	5 / 5
Google Code Jam '21 Qualification Round Problem A - Reversort	3 / 3
Google Code Jam '21 Qualification Round Problem B - Moons and Umbrellas	7 / 7
Google Code Jam '21 Qualification Round Problem C - Reversort Engineering	7 / 7
Google Code Jam '21 Round 1A Problem A - Append Sort	7 / 7
Google Code Jam '22 Qualification Round Problem A - Punched Cards	3 / 3
Google Code Jam '22 Qualification Round Problem C - d1000000	5 / 5
Google Code Jam '22 Round 1A Problem A - Double or One Thing	5 / 5

Problem	Score
IOI '00 P1 - Palindrome	10 / 10
IOI '94 P1 - The Triangle	7 / 7
IOI '96 P1 - A Game	10 / 10

Problem	Score
Mock CCC '18 Contest 3 J2 - A Palindrome Problem	3 / 3
Mock CCC '18 Contest 5 J2 - Smallest Mode	3 / 3

Problem	Score
SAC '21 Code Challenge P4 - Averaging Averages	5 / 5
SAC '22 Code Challenge 2 P2 - Cookie Sprinkler	5 / 5

Problem	Score
Mispelling	3 / 3
Mirrored Pairs	3 / 3
Triple Fat Ladies	5 / 5
A Plus B	3 / 3
Palindromic Integer Partition	5 / 5
Boolean	3 / 3
3n+1	3 / 3
Divide and Mod	3 / 3
Maximum Sum	7 / 7
A Game	10 / 10
Longest Increasing Subsequence	7 / 7
Flip the Switches	5 / 5
Hello, World!	3 / 3
Count The Triplets	7 / 7
K-th Minimum Number	17 / 17
MCIPC Contest 1 P1 - Factoring	3 / 3
Primes	3 / 3
Bubble Sort	7 / 7

Problem	Score
Waterloo 2001 Fall 1 E - A Multiplication Game	7 / 7
Waterloo 2017 Fall A - Art	3 / 3
Waterloo 2017 Winter A - Vera and Outfits	3 / 3
Waterloo 2023 Winter D - Link-Cut Tree	10 / 10