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Asia-Pacific Informatics Olympiad
Atcoder
Bedao Contest
Chưa phân loại
COCI
Duyên Hải Bắc Bộ
Dytechlab
Educational
Educational Codeforces
Free Contest
GSPVH
HNOI
HSG Quốc gia
ICPC
International Olympiad in Informatics
Japan OI
OI Style
Olympic 30/4
Olympic chuyên KHTN
Olympic Sinh Viên
Tin học trẻ
TST Training
USACO
Viettel Programming Challenge
VNOI Cup
VNOI Marathon
VNOI Online
VNUOI
VOJ
Problem types
2 con trỏ
2-satisfiability
Ad hoc (không thuộc thể loại nào)
Aho Corasick
Balanced BST (cây nhị phân cân bằng)
Bao lồi
Bitwise
C++ STL (Heap, Set, Map, ..)
Cặp ghép
Cặp ghép có trọng số
Cặp ghép trên đồ thị thường
Cây khung nhỏ nhất
Chia đôi tập
Chu trình Euler
Chưa phân loại
DFS / BFS
Disjoint set (DSU)
Divide & Conquer (Chia để trị)
Duyệt
Fast Fourier Transform (FFT)
Fenwick Tree (Binary Indexed Tree)
Fenwick Tree 2D
Hashing
Heavy Light Decomposition
Hình học
Interactive
Khử Gauss
KMP
Knuth Optimization
LCA
Luồng
Luồng mincost
Lý thuyết trò chơi - Adhoc
Lý thuyết trò chơi - Grundy
Lý thuyết trò chơi - Nim
Manacher
Mảng cộng dồn
Monotonic Queue
Nhân ma trận
Output Only
Quy hoạch động
Quy hoạch động bao lồi
Quy hoạch động bitmask
Quy hoạch động chữ số
Quy hoạch động thứ tự từ điển
Quy hoạch động trên cây
Rời rạc hóa
Segment Tree (Interval Tree)
Số học
String (xâu nói chung)
Suffix Array / Suffix Automaton / Suffix Tree
Sweep line
Tham lam
Tìm kiếm nhị phân (Binary search)
Tổ hợp
Toán - adhoc
Trie
Xử lý số lớn
Z-function
Đồ thị
Đường đi ngắn nhất - Dijkstra
Đường đi ngắn nhất - Floyd
Point range
Go
Random
Hot problems
Free Contest Testing Round 55 - LAMP
Free Contest Testing Round 27.5 - LCM
Lại đồ thị
D-query
A cộng B
Atcoder Educational DP Contest D - Knapsack 1
Mất điện
ID ▴
Problem
Category
Points
% AC
# AC
bedao_r03_kindness
Bedao Regular Contest 03 - KINDNESS
Bedao Contest
0.10
13.7%
187
bedao_r03_prime
Bedao Regular Contest 03 - PRIME
Bedao Contest
0.40
29.4%
246
bedao_r03_protect
Bedao Regular Contest 03 - PROTECT
Bedao Contest
0.80
24.9%
38
bedao_r03_race
Bedao Regular Contest 03 - RACE
Bedao Contest
0.60
26.6%
36
bedao_r03_wordgame
Bedao Regular Contest 03 - WORDGAME
Bedao Contest
0.15
22.1%
325
bedao_r04_accio
Bedao Regular Contest 04 - ACCIO
Bedao Contest
0.20
18.9%
131
bedao_r04_clown
Bedao Regular Contest 04 - CLOWN AND BALLS
Bedao Contest
0.50
6.8%
12
bedao_r04_loglcm
Bedao Regular Contest 04 - LOG LCM
Bedao Contest
0.60
4.6%
6
bedao_r04_magic
Bedao Regular Contest 04 - MAGIC
Bedao Contest
0.30
18.9%
109
bedao_r04_marble
Bedao Regular Contest 04 - MARBLE
Bedao Contest
0.30
4.4%
43
bedao_r04_simple
Bedao Regular Contest 04 - SIMPLE
Bedao Contest
0.10
54.2%
578
bedao_r05_carray
Bedao Regular Contest 05 - CARRAY
Bedao Contest
0.30
14.4%
131
bedao_r05_ccake
Bedao Regular Contest 05 - CCAKE
Bedao Contest
0.70
11.2%
18
bedao_r05_domrooks
Bedao Regular Contest 05 - DOMROOKS
Bedao Contest
0.40
17.3%
67
bedao_r05_factory
Bedao Regular Contest 05 - FACTORY
Bedao Contest
0.50
13.1%
87
bedao_r05_milo
Bedao Regular Contest 05 - MILO
Bedao Contest
0.10
25.9%
441
bedao_r05_sqrsum
Bedao Regular Contest 05 - SQRSUM
Bedao Contest
1.00
16.1%
2
bedao_r06_exams
Bedao Regular Contest 06 - EXAMS
Bedao Contest
0.20
26.1%
624
bedao_r06_halloween
Bedao Regular Contest 06 - HALLOWEEN
Bedao Contest
0.40
3.8%
9
bedao_r06_icd
Bedao Regular Contest 06 - ICD
Bedao Contest
0.15
52.2%
412
bedao_r06_pmed
Bedao Regular Contest 06 - PMED
Bedao Contest
0.60
3.8%
4
bedao_r06_pyramid2
Bedao Regular Contest 06 - PYRAMID2
Bedao Contest
0.10
16.6%
441
bedao_r06_rewards
Bedao Regular Contest 06 - REWARDS
Bedao Contest
0.50
51.2%
108
bedao_r07_arraygame
Bedao Regular Contest 07 - ARRAYGAME
Bedao Contest
0.85
5.2%
24
bedao_r07_deadline
Bedao Regular Contest 07 - DEADLINE
Bedao Contest
1.00
10.7%
29
bedao_r07_lis
Bedao Regular Contest 07 - LIS
Bedao Contest
0.20
21.1%
451
bedao_r07_mtcat
Bedao Regular Contest 07 - MTCAT
Bedao Contest
0.40
20.7%
250
bedao_r07_number
Bedao Regular Contest 07 - NUMBER
Bedao Contest
0.10
69.6%
1180
bedao_r07_train
Bedao Regular Contest 07 - TRAIN
Bedao Contest
0.50
16.2%
81
bedao_r08_books
Bedao Regular Contest 08 - BOOKS
Bedao Contest
0.15
33.8%
650
bedao_r08_farray
Bedao Regular Contest 08 - FARRAY
Bedao Contest
0.60
8.3%
22
bedao_r08_funfair
Bedao Regular Contest 08 - FUNFAIR
Bedao Contest
0.40
7.7%
220
bedao_r08_kingdom
Bedao Regular Contest 08 - KINGDOM
Bedao Contest
0.50
24.3%
232
bedao_r08_negiko
Bedao Regular Contest 08 - NEGIKO
Bedao Contest
0.30
15.1%
269
bedao_r08_triplet
Bedao Regular Contest 08 - TRIPLET
Bedao Contest
0.20
28.0%
398
bedao_r09_devil
Bedao Regular Contest 09 - DEVIL
Bedao Contest
0.30
7.7%
131
bedao_r09_distinct
Bedao Regular Contest 09 - DISTINCT
Bedao Contest
1.50
11.4%
6
bedao_r09_mnumber
Bedao Regular Contest 09 - MNUMBER
Bedao Contest
0.10
16.7%
567
bedao_r09_riddle
Bedao Regular Contest 09 - RIDDLE
Bedao Contest
0.20
28.6%
357
bedao_r09_sausage
Bedao Regular Contest 09 - SAUSAGE
Bedao Contest
0.40
17.4%
130
bedao_r09_treetravel
Bedao Regular Contest 09 - TREETRAVEL
Bedao Contest
1.30
26.4%
161
bedao_r10_admissions
Bedao Regular Contest 10 - ADMISSIONS
Bedao Contest
0.15
24.0%
358
bedao_r10_battleship
Bedao Regular Contest 10 - BATTLESHIP
Bedao Contest
0.30
13.5%
55
bedao_r10_dogs
Bedao Regular Contest 10 - DOGS
Bedao Contest
0.60
10.0%
38
bedao_r10_hard2
Bedao Regular Contest 10 - HARD2
Bedao Contest
0.70
5.7%
13
bedao_r10_qperm
Bedao Regular Contest 10 - QPERM
Bedao Contest
0.50
26.2%
54
bedao_r10_volunteers
Bedao Regular Contest 10 - VOLUNTEERS
Bedao Contest
0.20
20.6%
347
bedao_r11_abstring
Bedao Regular Contest 11 - ABSTRING
Bedao Contest
0.10
20.1%
225
bedao_r11_candy
Bedao Regular Contest 11 - CANDY
Bedao Contest
1.20
7.1%
7
bedao_r11_evensum
Bedao Regular Contest 11 - EVENSUM
Bedao Contest
0.50
19.4%
149
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