rui_er
- rui_er
China- Student
- Tsinghua University High School China National Tennis Center 2 Lincui Road Chaoyang, Beijing China 100121
- No Active Plan. View Details
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Learning Paths (0)
Practice Paths (1)
Contests (9)
August Challenge 2021 Division 3 (Rated)
Problem Difficulties, Olympics Ranking, Chef and Bulb Invention
December Challenge 2021 Division 3 (Rated)
Check Mate, Valleys and Hills, Rock Paper Scissors, List of Lists, Utkarsh and Placement tests
Starters 70 Division 3 (Rated)
Two Counters, Frequency Array Retrieval, Prime Reversal, X AND Y Tree, Minimum distance between 1s, Cost of Groceries, Spice Level, Kitchen Timings
Starters 71 Division 2 (Rated)
Pet Store, Flip the Prefix, Instagram, Snapchat, Expected Sum, Perfect Trio, Maximizing LCS, Smallest Difference
December Long 2022 Division 2 (Unrated)
Reach fast, Maximise XOR, Divisible by K, Gcd of Subarrays, Divisible by A_i, Good Investment or Not
Starters 73 Division 2 (Rated)
Minimum OR Path, Consecutive Xor, First To Last, Chef Plays Ludo, Multivitamin Tablets, Hamiltonian Tree, Lucky Numbers, Append for OR
Starters 74 Division 1 (Rated till 6-Stars)
Distinct Values, Odd Even Binary String, Minimal Inversions, Lcm hates Gcd, Chef And Babla, Mana Points, Candies, Facebook
February Cook-Off 2023 Division 1 (Rated)
Alice Potter And Dumbledore Army
Starters 122 Division 1 (Rated till 6-Stars)
Arya In Grid, Transformation Cost, Matrix Modulo, Elf on the Shelf
Starters 149 (Rated till 5 stars)
Kill Monsters (Hard Version), Maximise Sum, Chef Loves Beautiful Strings (Hard Version), Chef Loves Beautiful Strings (Easy Version), Kill Monsters (Easy Version)