User chfrn

Points breakdown

100 / 100

AC | PY3

Educational DP Contest AtCoder Q - Flowers

on Feb. 25, 2023, 3:16 a.m.

15pp

weighted 100% (15pp)

100 / 100

AC | C++11

Checkerboard Summation (Hard)

on July 6, 2021, 1:51 a.m.

15pp

weighted 95% (14pp)

100 / 100

AC | C++11

COCI '07 Contest 4 #5 Poklon

on July 3, 2021, 2:25 a.m.

15pp

weighted 90% (14pp)

200 / 200

AC | C++11

IOI '01 P1 - Mobile Phones

on July 2, 2021, 11:06 p.m.

15pp

weighted 86% (13pp)

15 / 15

AC | C++11

CCC '18 S4 - Balanced Trees

on May 28, 2021, 4:56 p.m.

15pp

weighted 81% (12pp)

89 / 89

AC | C++11

Mock CCO '18 Contest 4 Problem 4 - Time Travel

on April 7, 2020, 10:37 p.m.

15pp

weighted 77% (12pp)

100 / 100

AC | C++11

Fibonacci Sequence

on April 29, 2019, 5:16 p.m.

15pp

weighted 74% (11pp)

100 / 100

AC | C++11

LKP '18 Contest 1 P4 - Fun in Föràg

on Feb. 20, 2019, 1:15 a.m.

15pp

weighted 70% (10pp)

100 / 100

AC | C++11

Checkerboard Summation (Easy)

on July 6, 2021, 1:35 a.m.

12pp

weighted 66% (8.0pp)

100 / 100

AC | C++11

DMOPC '16 Contest 1 P5 - Blood Tubes

on July 3, 2021, 3:24 p.m.

12pp

weighted 63% (7.6pp)

Problem	Score
CCC '00 J2 - 9966	3 / 3
CCC '00 S4 - Golf	7 / 7
CCC '01 S3 - Strategic Bombing	7 / 7
CCC '02 S2 - Fraction Action	5 / 5
CCC '05 J5 - Bananas	10 / 10
CCC '05 S4 - Pyramid Message Scheme	10 / 10
CCC '05 S5 - Pinball Ranking	12 / 12
CCC '07 S3 - Friends	7 / 7
CCC '08 J4 - From Prefix to Postfix	7 / 7
CCC '10 J1 - What is n, Daddy?	3 / 3
CCC '10 J5 - Knight Hop	7 / 7
CCC '11 S2 - Multiple Choice	3 / 3
CCC '11 S3 - Alice Through the Looking Glass	10 / 10
CCC '12 S3 - Absolutely Acidic	7 / 7
CCC '13 J2 - Rotating letters	3 / 3
CCC '13 S1 - From 1987 to 2013	5 / 5
CCC '13 S3 - Chances of Winning	10 / 10
CCC '13 S4 - Who is Taller?	7 / 7
CCC '14 S1 - Party Invitation	5 / 5
CCC '14 S3 - The Geneva Confection	7 / 7
CCC '15 J5 - π-day	10 / 10
CCC '15 S1 - Zero That Out	3 / 3
CCC '15 S2 - Jerseys	5 / 5
CCC '15 S3 - Gates	10 / 10
CCC '16 J1 - Tournament Selection	3 / 3
CCC '16 J2 - Magic Squares	3 / 3
CCC '16 J3 - Hidden Palindrome	5 / 5
CCC '16 S1 - Ragaman	3 / 3
CCC '16 S2 - Tandem Bicycle	5 / 5
CCC '16 S3 - Phonomenal Reviews	12 / 12
CCC '17 S1 - Sum Game	3 / 3
CCC '17 S2 - High Tide, Low Tide	5 / 5
CCC '17 S3 - Nailed It!	7 / 7
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 J5 - Choose your own path	7 / 7
CCC '18 S1 - Voronoi Villages	3 / 3
CCC '18 S2 - Sunflowers	5 / 5
CCC '18 S4 - Balanced Trees	15 / 15
CCC '19 S1 - Flipper	3 / 3
CCC '19 S2 - Pretty Average Primes	5 / 5
CCC '20 S3 - Searching for Strings	4.200 / 12
CCC '96 S1 - Deficient, Perfect, and Abundant	5 / 5

Problem	Score
Next Prime	5 / 5
Longest Increasing Subsequence	10 / 10
Quine	10 / 10

Problem	Score
COCI '06 Contest 1 #4 Slikar	10 / 10
COCI '06 Contest 4 #4 Zbrka	5 / 12
COCI '06 Contest 6 #1 Prase	5 / 5
COCI '07 Contest 4 #5 Poklon	15 / 15
COCI '07 Contest 6 #3 Granica	10 / 10
COCI '08 Contest 2 #3 Perket	7 / 7
COCI '08 Contest 3 #1 Pet	5 / 5
COCI '08 Contest 6 #1 Buka	5 / 5
COCI '13 Contest 2 #4 Putnik	12 / 12
COCI '14 Contest 2 #2 Utrka	5 / 5

Problem	Score
DMOPC '14 Contest 2 P3 - Sawmill	7 / 7
DMOPC '14 Contest 2 P4 - Deforestation	5 / 5
DMOPC '14 Contest 3 P4 - Not Enough Testers!	10 / 10
DMOPC '14 Contest 4 P6 - Save Nagato!	5 / 10
DMOPC '15 Contest 1 P4 - Itami and Candy	10 / 10
DMOPC '15 Contest 4 P4 - Great Sequence	10 / 10
DMOPC '16 Contest 1 P5 - Blood Tubes	12 / 12
DMOPC '17 Contest 1 P1 - Fujō Neko	5 / 5
DMOPC '21 Contest 4 P1 - Tree Shopping	7 / 7
DMPG '19 B5 - Triangles	10 / 10

Problem	Score
DWITE '09 R1 #5 - Running In Circles	7 / 7
DWITE '11 R1 #5 - Tattarrattat	10 / 10

User chfrn

Points breakdown

APIO (2 points)

CCC (265.200 points)

CCO (10 points)

Classics (25 points)

COCI (79 points)

Data Structure Tests (10 points)

DMOPC (81 points)

DWITE (17 points)

ECOO (24 points)

FHC (22 points)

GFSSOC (15.500 points)

IOI (15 points)

Mock CCC (66.300 points)

Mock CCO (15 points)

Seasonal (22 points)

Uncategorized (277 points)

VM7WC (18 points)

Problem	Score
ECOO '07 R3 P1 - Sum of Primes	7 / 7
ECOO '12 R1 P3 - Triangles	5 / 5
ECOO '18 R2 P3 - Factorial	12 / 12

Problem	Score
Facebook Hacker Cup '15 Round 1 P1 - Homework	10 / 10
Facebook Hacker Cup '15 Round 1 P3 - Winning at Sports	12 / 12

Problem	Score
GFSSOC '17 S1 - Path to Waterloo	7 / 7
GFSSOC '15 Fall J4 - Marathon	7 / 7
GFSSOC '15 Fall S4 - Mostly Talking	1.500 / 15

Problem	Score
Mock CCC '20 S1 - War	3 / 3
Mock CCC '20 Contest 2 S2 - 4D BBST on a DP	5 / 5
Mock CCC '18 Contest 1 J1 - A String Problem	3 / 3
Mock CCC '18 Contest 1 J2 - A Substring Problem	3 / 3
Mock CCC '18 Contest 1 J3/S1 - A Math Problem	5 / 5
Mock CCC '18 Contest 1 J4/S2 - A Square Problem	5 / 5
Mock CCC '18 Contest 2 J3/S1 - An Array Problem	7 / 7
Mock CCC '18 Contest 3 S4 - A Graph Problem	10 / 10
Mock CCC '19 Contest 1 S1 - Pusheen's Report Card	3 / 3
Mock CCC '19 Contest 1 S2 - Pusheen's Puzzle Present	5 / 5
Valentine's Day '18 J1 - The Cactus Number	3 / 3
Valentine's Day '18 J2 - Stop the Scammer	5 / 5
Valentine's Day '18 J3 - Are they cute?	2.300 / 5
Valentine's Day '18 J4 & S1 - Carol's Cute Cactus	7 / 7

Problem	Score
MEC '16 P3 - Getting Good at Programming	10 / 10
Is it a Tree?	7 / 7
New Year's '16 P3 - Arithmetic Snowman	5 / 5

Problem	Score
2spooky4me	7 / 7
A Noisy Class	7 / 7
A Plus B	3 / 3
List Minimum	3 / 3
List Minimum (Hard)	5 / 5
Lexicographically Least Substring	5 / 5
Binary	5 / 5
Checkerboard Summation (Easy)	12 / 12
Checkerboard Summation (Hard)	15 / 15
Double Doors Regional P1 - Tudor Gets a Goat	3 / 3
Double Doors Regional P2 - Tudor Learns DDR	3 / 3
Educational DP Contest AtCoder A - Frog 1	7 / 7
Educational DP Contest AtCoder B - Frog 2	7 / 7
Educational DP Contest AtCoder D - Knapsack 1	7 / 7
Educational DP Contest AtCoder E - Knapsack 2	7 / 7
Educational DP Contest AtCoder G - Longest Path	10 / 10
Educational DP Contest AtCoder I - Coins	10 / 10
Educational DP Contest AtCoder K - Stones	10 / 10
Educational DP Contest AtCoder Q - Flowers	15 / 15
Fast Factorial Calculator	7 / 7
Fibonacci Sequence	15 / 15
PEG Test '11 - Cyclopian Puzzle	10 / 10
GlobeX Cup '19 J1 - Chess Master Winnie	3 / 3
GlobeX Cup '19 J3 - Codex	5 / 5
GlobeX Cup '19 J4 - Winni's Lonely Card Game	1.500 / 5
GlobeX Cup '19 S1 - Planet Classification	5 / 5
GlobeX Cup '19 S2 - Predicting Collisions	7 / 7
Breaking the Friend Chain	7 / 7
HCI '16 - Oversleep	7 / 7
Hello, World!	3 / 3
Word Scrambler	5 / 5
LKP '18 Contest 1 P4 - Fun in Föràg	15 / 15
The Mirror	5 / 5
Postfix Notation	7 / 7
Prime Factorization	5 / 5
RGPC '18 P1 - Giant Cookie	3 / 3
RGPC '18 P4 - Higgs	1.500 / 15
The Cosmic Era P3 - Battle Positions	7 / 7
Bubble Sort	7 / 7
XOR Sum	10 / 10

Problem	Score
VM7WC '16 #3 Silver - Can Shahir even get there?!	5 / 5
VM7WC '16 #6 Bronze - The Most Important Skill in Biology	3 / 3
VM7WC '16 #6 Gold - Cold War Telecom	10 / 10