rui_er
- 5★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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Rating Graph
Ratings System Update
(2024-02-21 22:00:00)Ratings System Update
(2022-12-20 00:00:00)Junior Rating Graph
Ratings System Update
(2024-02-21 22:00:00)Ratings System Update
(2022-12-20 00:00:00)Learning Paths (0):
Practice Paths (1):
Contests (8):
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):
Gcd of Subarrays, Maximise XOR, Reach fast, Good Investment or Not, Divisible by A_i, Divisible by K
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):
Candies, Odd Even Binary String, Minimal Inversions, Lcm hates Gcd, Chef And Babla, Distinct Values, Mana Points, Facebook
Starters 122 Division 1 (Rated till 6-Stars):
Arya In Grid, Transformation Cost, Matrix Modulo, Elf on the Shelf
Practice Problems (31):
Practice:
Bytelandian gold coins, Life, the Universe, and Everything, Pairwise AND sum, Number Mirror, Cards, bags and coins, Add Two Numbers, Nikitosh and xor, Chef and Bored Games, Lucky Number Game, Chef and Football Match, ICPC Balloons, Ceiling Sum, How many unattempted problems, Age Limit, Burgers, Determine the Score, Biryani classes, Fitness, Easy Pronunciation, Average Permutation, Audible Range, Tax in Chefland, Water Consumption, Akash and Dinner, Squats, Rain in Chefland, Sum of Cube , Scalene Triangle, Convert to permutation, Distinct Sequence, Food Costs