Andrey
- citrinitas
Russia- Professional
- Waviot
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Practice Paths (1)
Contests (42)
Starters 79 Division 4 (Rated)
Love Squares Hate Cubes, Mountain, One Stone or Two Stones, Add smallest prime factor, Distinct Opposite Sums, Better Deal, Ageing
Starters 80 Division 2 (Rated)
Permutation Subsequence, Prefix Permutation, Matrix Pain, Equal Elements
Starters 81 Division 2 (Unrated)
Good XOR, Distinct Matrix, Divide Pages, Arrange the array, Binary Ternary
Starters 82 Division 2 (Rated)
Find eX, Make A-B Same, Difference Matrix, MIN To MAX
Starters 84 Division 2 (Rated)
SUM OR, Max count of 1, Digit Operation, Max Binary, Chef And Adjacent Sums
Starters 85 Division 1 (Rated till 6 stars)
Crazy Bishops on Chessboard, Efficient PAN Linking, TripTastic
Starters 86 Division 1 (Rated for All)
String Game , Largest Y
Starters 87 Division 1 (Rated till 6 Stars)
Count the Permutations (always), Inversions of subsequences, AB plus C
Starters 83 Division 2 (Rated)
Construct String, Order by XOR, Rotate to Minimum
Starters 88 Division 1 (Rated till 6 Stars)
Maximum And Or, Chef and Asteroids, Chef and Good Array
Starters 90 Division 1 (Rated till 6 Stars)
Crushed Apples and a Balance Scale, Sum of Goodness, Printing Binary Array, Anti Palindrome
Starters 91 Division 1 (Rated till 6 Stars)
Odd GCD Permutation, Chef Odd, Maximum Sum Permutation
Starters 93 Division 1 (Rated for All)
Thank U, Next, NASA, Greedy, Bloodline
Starters 94 Division 1 (Rated till 5 Stars)
Possible or Not, Search for 404, The Vowel Matrix, Rank Queries
Starters 95 Division 1 (Rated till 6 Stars)
Boxes, Transfusion Chain
Starters 96 Division 1 (Rated till 5 Stars)
Swap the numbers, Zero Array, Mex Array
Starters 97 Division 1 (Rated till 6 Stars)
Make It Special, No Palindrome, Triplets Min
Starters 99 Division 1 (Rated till 6 Stars)
Segment Three, Two Piles, Exclusion-Inclusion
Starters 100 Division 1 (Rated)
Stamps 100
Starters 101 Division 1 (Unrated)
Minimize Xor Difference, Warrior Chef
Starters 102 Division 1 (Rated till 6 Stars)
Parity Permutation, Light The Bulb, Chef Segment, Bit Play
Starters 103 Division 1 (Rated till 6 Stars)
Squarified, Chandelier, Unique xor, Divisible By 8
Starters 104 Division 1 (Rated till 6 Stars)
Lexicographically Largest , Construct An Array, Maximise Sum
Starters 105 Division 1 (Rated till 6 Stars)
Spooky Sequences, Dull Operation, Wishcraft
Starters 107 Division 1 (Rated till 6 Stars)
Maximal Expression, Adjacent Flips, Odd Matrix, OR Permutation
Starters 108 Division 1 (Rated till 6 Stars)
Palindromic Prime Numbers, Fair Distribution, Multiple of 9
Starters 109 Division 1 (Rated till 5 Stars)
Minimum XOR, Alter Ego, Chroma Swap
Starters 110 Division 1 (Rated till 5-stars)
Marbles, Am I Lucky!, Tom and Jerry, Monsters, Tetris
Starters 111 Division 1 (Rated till 6 Stars)
LCM Mania, Prefixing, Prime Range Game, Beautiful Strings
Starters 112 Divison 1 (Rated till 6 Stars)
Cursed Indices, 3 Logicians Walk into a Bar, Yet Another Array Game, Subtree Coloring, Permutation Construction
Starters 113 Division 1 (Rated)
Count Distinct Arrays, Minimise Maximum Subarray Sum, Make All Equal, Score Sum, Maximum Score
Starters 114 Division 1 (Rated till 6 Stars)
Chef and Tag, Rock-Paper-Scissors
Starters 115 Division 1 (Rated)
Subtraction Sequence I, Greedy LIS Algorithm, Binary Grid Forces, Make All Zero
Starters 116 Divison 1 (Rated till 6-Stars)
Chef Product, ORST , Permutation Sort, Exact Savings
Starters 117 Division 1 (Rated till 5-Stars)
Spread Spree, Not Prime Permutation
Starters 118 Division 1 (Rated till 5-Stars)
Join States, Is it uniquely decodable, Xorry 2, Xorry 1
Starters 120 Division 1 (Rated till 6 Stars)
Find Permutation , Construct Permutation, Count Subarrays, Count Arrays
Starters 124 Division 1 (Rated till 5-Stars)
Swap and Unite, Make It One, How many arrays
Starters 125 Division 1 (Rated till 6-Stars)
Bucket Game, Operating on A, Binary Minimal
Starters 126 Division 1 (Rated till 6 Stars)
Tree Distance Set, Freedom, LCD, Triangular Swaps
Starters127 Division 1
Array Operations, ABC Conjecture, Anti-Triangle
Starters 128 Division 1 (Rated till 6-Stars)
Binary Substring, XOR And Multiply
Starters 129 Division 1 (Rated till 5-Stars)
Palindromic Substrings
Starters 130 Division 1 ( Rated till 6-Stars)
Make Equal, Good Binary String
Starters 131 Division 1 (Rated till 5 Stars)
K-Closeness, Digit Space, Encrypt Value, T-Perm
Starters 134 Division 1 (Rated till 6-Stars)
Origin, Prison Escape, 3out1in
Starters 136 Division 1 ( Rated till 6-Stars )
Game On Rectangle, Lexicographically Maximal Prefix AND, Sum of Modes
Starters 137 Division 1 (Rated till 5-Stars)
Speedrun, Double Trouble, Unusual Queries
Starters 139 Division 1 (Rated till 5-Stars)
Sum of N, Destroying Bridges Part 2
Starters 140 Division 1 (Rated till 5-Stars)
Split Permutation, Trick Or Treat, Break The String, Tree Removal
Starters 141 Division 1 (Rated till 5-Stars)
Possible Contender, Amphibian Escape, Perfect Prefixes
Starters 142 Division 1 (Rated till 5-Stars)
Sum of Xors, Pairs Sum with Length x, Array Removal, Number Hunt
Starters 146 Division 1 (Rated till 5 stars)
Back Front, Bouncing Ball, Permutation Construction
Starters 147 Division 1 (Rated till 5 stars)
Counting Triangles 101, K Subsequence 101, Truth Teller And Liars 101, Independence Day 101, Non-Primes 101, Gold Coins 101
Starters 148 Division 1 (Rated till 6 stars)
Double Trouble, Beautiful Flip
Starters 153 (Rated till 5 stars)
Another Game, Colorful Tree (Easy Version), Xometry (Easy Version)
Starters 156 (Rated till 6 stars)
Balance Difficulties, Interval Cliques, Partition Score