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Problem Category ▴ Points AC % Users
NOI '22 Multi-Provincial Team Selection P5 - Bracket China NOI 35p 6.8% 6
NOI '22 Multi-Provincial Team Selection P6 - MIS China NOI 40p 8.3% 2
NOIP '99 P2 - Palindrome Numbers China NOI 7p 14.1% 25
NOIP '99 Junior P1 - Cantor Table China NOI 5p 42.9% 15
NOIP '99 P3 - Traveller's Budget China NOI 12p 11.4% 13
NOIP '99 P1 - Missile Interception China NOI 12p 39.8% 40
NOIP '99 P4 - Stamp Face Value Design China NOI 12p 10.5% 9
NOIP '20 P1 - Drainage System China NOI 10p 10.6% 20
NOIP '20 P2 - String Matching China NOI 12p 13.5% 10
NOIP '20 P3 - Game of Moving Ball China NOI 15p 12.3% 6
NOI '02 P2 - Naughty Kid China NOI 15p 22.5% 14
NOIP '18 Junior P1 - Title Statistics China NOI 3p 66.7% 52
NOIP '18 Junior P2 - The Big Battle China NOI 7p 33.3% 13
NOIP '18 Junior P3 - Shuttle Bus China NOI 12p 16.3% 6
NOI '16 P1 - Good Partitions China NOI 20p 7.8% 5
NOI '16 P2 - Grid China NOI 25p 7.4% 6
NOI '16 P3 - The Beauty of Cycles China NOI 30p 3.4% 1
NOI '16 P4 - Interval China NOI 20p 21.6% 18
NOI '16 P5 - Drinking Water China NOI 20p 0.7% 1
NOI '16 P6 - Computation China NOI 30p 1.6% 2
NOI '22 P1 - Major China NOI 25p 5.6% 12
NOI '22 P2 - Stone China NOI 30p 25.0% 2
NOI '22 P3 - Count China NOI 40p 0.0% 0
NOI '22 P4 - Challenge NPC China NOI 25p 30.6% 4
NOI '22 P5 - Bubble Sort China NOI 35p 2.4% 1
NOI '22 P6 - Quadratic Integer Program China NOI 40p 0.0% 0
NOIP '20 P4 - WeRun China NOI 20p 5.0% 2
NOIP '04 P2 - Combine Fruit China NOI 5 31.9% 44
NOIP '04 P3 - Chorus Formation China NOI 10p 29.6% 28
NOIP '04 P4 - Bugs Eating Computation China NOI 15p 5.5% 9
NOIP '07 P1 - Counting Numbers China NOI 3p 51.5% 47
NOIP '07 P2 - Expanding Strings China NOI 5p 13.2% 20
NOIP '07 P3 - Removing Numbers from Matrix China NOI 15p 20.4% 22
NOIP '07 P4 - Core of a Tree Net China NOI 17p 10.3% 2
NOIP '08 P1 - Silly Monkey China NOI 5p 38.4% 29
NOIP '08 P2 - Expression by Matches China NOI 10p 52.5% 25
NOIP '08 P3 - Message Passing China NOI 15p 42.9% 16
NOIP '22 P1 - Flower Planting China NOI 10p 29.0% 39
NOIP '22 P2 - Meow Meow China NOI 20p 5.1% 8
NOIP '22 P3 - Facility Construction China NOI 17p 17.6% 14
NOIP '22 P4 - Contest China NOI 25p 10.4% 7
CTSC '15 P5 - Calendar Management China NOI 25 33.3% 1
NOI '17 P4 - Game China NOI 25p 16.7% 1
NOI '17 P5 - Vegetables China NOI 25p 66.7% 4
NOI '17 P6 - Magic China NOI 40p 40.0% 2
NOI '17 P1 - Integers China NOI 20p 29.1% 10
NOI '17 P2 - Queue China NOI 20p 45.3% 9
NOI '17 P3 - Pool China NOI 30p 38.9% 3
NOI '23 P1 - Square Coloring China NOI 17p 52.6% 10
NOI '23 P2 - Osmanthus Tree China NOI 25p 26.3% 5