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Problem Category Points AC % Users
NOIP '08 P3 - Message Passing China NOI 15p 44.4% 18
NOIP '15 P5 - Substring China NOI 12p 23.3% 19
NOIP '18 Junior P3 - Shuttle Bus China NOI 12p 13.0% 7
NOIP '18 P2 - Currency System China NOI 10p 43.3% 118
NOIP '18 P3 - Constructing Tracks China NOI 17p 23.0% 41
NOIP '18 P4 - Travel China NOI 10p 17.6% 18
NOIP '20 P1 - Drainage System China NOI 10p 11.6% 28
NOIP '20 P2 - String Matching China NOI 12p 12.2% 14
NOIP '20 P3 - Game of Moving Ball China NOI 15p 11.0% 7
NOIP '21 P1 - Saying Numbers China NOI 10p 30.6% 113
NOIP '22 P1 - Flower Planting China NOI 10p 29.3% 43
NOIP '22 P3 - Facility Construction China NOI 17p 16.7% 16
NOIP '99 P1 - Missile Interception China NOI 12p 41.6% 42
NOIP '99 P3 - Traveller's Budget China NOI 12p 11.4% 13
NOIP '99 P4 - Stamp Face Value Design China NOI 12p 11.4% 10
Non-space-separated Uncategorized 10 30.8% 47
ICPC NWERC 2011 A - Binomial Coefficients ICPC 10 13.5% 19
ICPC NWERC 2011 C - Movie Collection ICPC 10 51.7% 10
ICPC NWERC 2014 F - Finding Lines ICPC 17 8.3% 2
ICPC NWERC 2015 A - Assigning Workstations ICPC 10 31.4% 13
ICPC NWERC 2015 E - Elementary Math ICPC 15 35.4% 6
OCC '19 B6 - Fiji water Olympiads School 10p 16.3% 19
OCC '19 G1 - Top Coder Olympiads School 10p 34.5% 45
OCC '19 G5 - King kobortor's Infrastructure Olympiads School 17p 25.7% 25
OCC '19 S4 - Playing with Numbers Olympiads School 12p 12.0% 12
OCC '19 S5 - Partitioning Olympiads School 12p 8.9% 13
OCC '19 S6 - City Tolls Olympiads School 17p 27.8% 5
Bob's Function Olympiads School 17p 16.2% 13
Bob's Bitwise Operation Olympiads School 17p 7.6% 12
Bob's Kingdom Olympiads School 12p 16.2% 28
Least Multiple Olympiads School 10p 8.0% 37
The Extra Node Olympiads School 17p 13.4% 15
Adjacent Pairs Olympiads School 15p 10.4% 22
Tree Journey Olympiads School 12p 50.0% 34
Infinity Card Decks Olympiads School 15p 15.1% 18
City Travel Olympiads School 15p 17.8% 25
Three Colors Olympiads School 12p 48.2% 38
Three Nodes Olympiads School 17p 11.8% 18
0-1 Sequence Olympiads School 15p 21.6% 5
Longest Up-Down Subsequence POI 12p 30.1% 131
A Fenwick Tree Question Olympiads School 15 31.2% 64
Returning Home Uncategorized 10 23.1% 80
One Small Favour Uncategorized 10p 1.1% 17
Another Small Favour Uncategorized 15p 5.3% 9
OTHS Coding Competition 1 (Mock CCC) J5 - Scavenger Hunt Uncategorized 10p 20.6% 74
ICPC PACNW 2016 B - Buggy Robot ICPC 10 29.8% 11
ICPC PACNW 2016 F - Illumination ICPC 12 21.0% 27
ICPC PACNW 2016 G - Maximum Islands ICPC 15 25.9% 7
ICPC PACNW 2016 I - Postman ICPC 12 25.3% 32
ICPC PACNW 2016 J - Shopping ICPC 15 23.5% 155