Learning Paths (0)
None
Practice Paths (0)
None
Contests (7)
July Challenge 2019 Division 2
Hit the Coconuts, Guess the Prime!, Parity Again, Codechef War, Circular Merging, (Challenge) Codechef War II, Minimum and Maximum, Chef and Mean
September Challenge 2020 Division 1
Chefina and Swap, Move the Coins 2, Chef and Trump Cards, Find XOR, Rotate the Polyline, Chef and Sums, Move the Coins - Creating Tests, Divide Candies, Vibrating Paths (Challenge), Ada Matrix
August Lunchtime 2020 Division 2
Game on a Strip, Counting Graphs, Mode of Frequencies, Alien Invasion , Elevator, Ratings and Rankings
October Challenge 2020 Division 1
Inversions, Positive AND, Random Knapsack, Rooted Minimum Spanning Tree, Replace for X, D-Dimensional MST, Compress all Subsegments, Adding Squares, Village Road Network
December Challenge 2020 Division 1
Hail XOR, Square Root of LCA Convolution, Calculus, Linear Combination, Permutations, Digit Matrix, String Operations, Palindromic Equivalence, Positive Prefixes, Even Pair Sum
March Challenge 2021 Division 1
Dense Graph, Consecutive Adding, Paparazzi Gennady, Substring Probability, Space Arrays, Wireless Electricity (Challenge), Locked Safe, Random Walk Queries, Maximum Topological Sort, Clique Boolean Expression
April Challenge 2021 Division 1
Binary String MEX, Tree Permutations, Worthy Matrix, Destroy the EMP Chip, Chef and Pair Flips, Water Sort Puzzle (Challenge), String Power, Chef and Dice, Brahma and Shiva, Boolean Game
May Challenge 2021 Division 1 (Unrated)
Valid Paths, Tree House, An Interesting Sequence, King Killing, Xor Equality, Tic Tac Toe, Modular Equation
June Challenge 2021 Division 1 (Unrated)
Minimum Dual Area, Shortest Route, Bitwise Tuples, Bella ciao, Dual Distance, Maximum Frequent Subarray Sum, Summer Heat, MathBuzz, Optimal Xor Set, Minimum Subtree Cover
July Challenge 2021 Division 1 (Unrated)
XxOoRr, Chef vs Bharat, Even Odd Partition, Optimal Denomination, Chef and Pairs, Madoka and Ladder Decomposition, Dakimakura Distribition, K Path Query
August Challenge 2021 Division 1 (Unrated)
Special Triplets, Array Filling, Geometry 1, Chef and Bulb Invention, Alternating LG Queries, Charge Scheduling, Chef and Digits of Large Numbers, Fat Hut, Problem Difficulties, Olympics Ranking
September Challenge 2021 Division 1 (Unrated)
XOR Equal, Shuffling Parities, Minimize Digit Sum, Treasure Hunt, 2-D Point Meeting, Airline Restrictions, Travel Pass, Covaxin vs Covishield, Minimum Digit Sum 2
October Challenge 2021 Division 1 (Unrated)
Chef at the Olympics, Longest AND Subarray, Digit Removal, MEX-OR, Yet another MEX problem, Characteristic Polynomial Verification, Hidden Points
November Challenge 2021 Division 1 (Unrated)
Flip or Compress, Functional Array, Wildcard Replacement, Xor Equation, Weird Palindrome Making, Hill Sequence, Maximise the bridges, Convex Hulk
December Challenge 2021 Division 1 (Unrated)
Increasing String , Yet Another Tree Problem, Valleys and Hills, Rock Paper Scissors, Pyramid Traversal, List of Lists, Min Manhattan Distance, Squares Counting
January Long 2022 - I, Division 1 (Unrated)
Sequence Master, Generating Cycles, Retrieve back the Array, Chef and Riffles
January Long 2022 - II, Division 1 (Unrated)
Array Partition, Power Sum, Tree Master, Sum and OR, Crying Colours
February Long 2022 - I, Division 1 (Unrated)
Random OR, Digit Multiplication By K, Binary Base Basics, Bitwise Blend, Remove Adjacent
February Long 2022 - II, Division 1 (Unrated)
Sequence GCD, Area Sums in Convex Polygons, Bitwise swaps, Xor Palindrome
March Long One 2022, Division 1 (Unrated)
Subarray XOR, Substring of a Substring, Count the Ones, Exact Marks, MEX on Trees
March Long Two 2022, Division 1 (Unrated)
Minimum Longest Substring, Same Parity Swaps in Binary Strings, Kostomuksha and AESC MSU, Perfect Imperfections 2
April Long One 2022 Division 1 (Unrated)
Yet Another Mex Problem, Dazzling AXNODR Challenge , Bullets and Enemies, Min Max Equality, Pairwise Xors
April Long Two 2022 Division 1 (Unrated)
Geometric Mean Inequality, Yet Another LIS Problem, Antipodal Points, Flip to Invert, Chef And Division
May Long One 2022 Division 1 (Unrated)
Mystical Numbers, In The Green Zone, The Magical Stone, Alternating Diameter, Four Arrays
June Long One 2022 Division 1 (Unrated)
Full Path Eraser, Expected move, Reduce to zero, Add By Permutation, Divisible by i , Possible GCD
June Long Two 2022 Division 1 (Unrated)
Counting Is Fun, Gcd and Lcm , AP Grid, The Subarray XOR, Reversal Sorting
July Long One 2022 Division 1 (Unrated)
Largest Square in the garden, Expected Difference, Game of Piles Version 1, Game of Piles Version 2, Find A, B, C
July Long Two 2022 Division 1 (Unrated)
Maximize Difference, Concat Sort, Sum of Product 2, Similar Subsequence
August Long 2022 Division 1 (Unrated)
Angled Flip, Tree of Trees, XOR with smallest element, Hello Equation, Crazy Subsequences
September Long 2022 Division 1 (Unrated)
Yet Another Chef And Numbers, Distinct Numbers, Pokemon Battles, Alone Alice!, Interesting Subarray
October Long 2022 Division 1 (Unrated)
A drawing game, Chef And Array Construction, Twos and Zeros, Binary Substituition, Building Race
November Long 2022 Division 1 (Unrated)
MaxEdges, Minimize swaps, Minimum BFS Length, Alice and the Array
December Long 2022 Division 1 (Unrated)
Counting Subsequences, Not Divisible, Break into Powers, Sum of Cube , Divisible by A_i
Total Problems Solved: 216
North Korea
