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1,210 contest(s) 336,649 accounts(s)

Top rating updated 3 hours ago

N Handle Rating
1
tourist 		3810
2
zhoukangyang 		3727
3
w4yneb0t 		3710
4
ksun48 		3702
5
Benq 		3658
6
ecnerwala 		3627
7
cospleermusora 		3606
8
jiangly 		3605
9
mnbvmar 		3555
10
newbiedmy 		3545
more

Rating distribution

Country distribution

N Country Participants
number
1
Japan 		96615
2
India 		80165
3
China 		59393
4
Bangladesh 		11969
5
Egypt 		3262
6
South Korea 		2913
7
Vietnam 		2860
8
United States of America 		2788
9
Taiwan 		2380
10
Russia 		2248
more

Country rating updated 20 hours ago

N Country Participants
rating
1
China
3994
2
Japan
3815
3
Belarus
3797
4
United States of America
3734
5
Canada
3703
6
Poland
3561
7
Ukraine
3535
8
Russia
3500
9
Netherlands
3295
10
South Korea
3294
more

Most participated

N Handle Contests
number
1
kzyKT 		732
2
startcpp 		709
3
ei13333 		695
4
kmjp 		677
5
m_buyoh 		662
6
satanic0258 		652
7
kotatsugame 		652
8
merom686 		652
9
tokumini 		642
10
prd_xxx 		621
more

Last activity

N Handle Last
activity
1
shiomusubi496 		Jan. 12, 2025
2
lacitirc 		Jan. 12, 2025
3
HealTheWorld 		Jan. 12, 2025
4
syun0713 		Jan. 12, 2025
5
alvingogo 		Jan. 12, 2025
6
n0ma_ru 		Jan. 12, 2025
7
jiangly 		Jan. 12, 2025
8
Thienu 		Jan. 12, 2025
9
bloomingroute 		Jan. 12, 2025
10
sugarrr 		Jan. 12, 2025
more

Rating activity

N Handle Rating
activity
1
lacitirc 		Jan. 12, 2025
2
HealTheWorld 		Jan. 12, 2025
3
syun0713 		Jan. 12, 2025
4
alvingogo 		Jan. 12, 2025
5
n0ma_ru 		Jan. 12, 2025
6
Thienu 		Jan. 12, 2025
7
bloomingroute 		Jan. 12, 2025
8
sugarrr 		Jan. 12, 2025
9
Darko 		Jan. 12, 2025
10
N_hara 		Jan. 12, 2025
more

Most writer

N Handle Writer
number
1
maroonrk 		31
2
maspy 		14
3
square1001 		11
4
E869120 		11
5
sugim48 		10
6
PCTprobability 		10
7
chinerist 		9
8
yosupo 		8
9
sigma425 		8
10
DEGwer 		8
more

Problems

Date Rating Name
Jan. 12, 2025
1445 		Inside or Outside
Jan. 12, 2025
2212 		L Partition
Jan. 12, 2025
2919 		Basic Grid Problem with Updates
Jan. 12, 2025
2743 		Matrix Pow Sum
Jan. 12, 2025
3603 		Gaps of 1 or 2
Jan. 12, 2025 — カードゲーム 4 (Card Game 4)
Jan. 12, 2025 — ポスター 2 (Poster 2)
Jan. 12, 2025 — 修学旅行 (School Trip)
Jan. 12, 2025 — 最悪の記者 5 (Worst Reporter 5)
Jan. 12, 2025 — 神経衰弱 2 (Pair Matching 2)
more

Problem rating distribution

Past contests

End
Time
 Contest
Jan. 12, 2025 AtCoder Regular Contest 190 (Div. 1)
Jan. 12, 2025 JOIG 2024/2025 本選 過去問
Jan. 11, 2025 HHKB Programming Contest 2025(AtCoder Beginner Contest 388)
Jan. 5, 2025 KUPC 2024
Jan. 4, 2025 AtCoder Beginner Contest 387
Jan. 1, 2025 AtCoder Race Ranking 2024. Heuristic
Jan. 1, 2025 AtCoder Race Ranking 2024. Algorithm
Dec. 29, 2024 AtCoder Grand Contest 070
Dec. 28, 2024 AtCoder Beginner Contest 386
Dec. 24, 2024 Xmas Contest 2024
more

Coming contests

Start
Time
 Contest
Jan. 18, 2025 Toyota Programming Contest 2025（AtCoder Beginner Contest 389)
Jan. 19, 2025 ALGO ARTIS Programming Contest 2025 Winter（AtCoder Heuristic Contest 041）
Jan. 25, 2025 AtCoder Beginner Contest 390
Jan. 26, 2025 AtCoder Regular Contest 191 (Div. 2)
Feb. 1, 2025 AtCoder Beginner Contest 391
Feb. 8, 2025 Japan Registry Services (JPRS) Programming Contest 2025#1 (AtCoder Beginner Contest 392)
Feb. 15, 2025 AtCoder Beginner Contest 393
Feb. 22, 2025 KAJIMA CORPORATION CONTEST 2025 (AtCoder Beginner Contest 394)
March 2, 2025 The 2nd Masters Championship-qual-