Aritro Pal
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Activity Heat Map
Learning Paths (3)
Practice Paths (4)
Data Structures Interview Questions
Jump from 2* to 3*
Practice for ZCO and INOI
Prepare for ICPC - Past Year Problems
Contests (47)
November Challenge 2019 Division 2
Hard Sequence, Weapon Value
December Challenge 2019 Division 2
Plus Multiply, That Is My Score!
February Challenge 2020 Division 2
School of Geometry, Hard Cash
March Challenge 2020 Division 2
Pintu and Fruits
International Coding Marathon (Rated for all)
Mr Pr in a Dilemma
June Challenge 2020 Division 2
Chef and Icecream, Chef and String, Chef and Price Control
October Challenge 2020 Division 2
Chef and Easy Queries
November Challenge 2020 Division 2
Ada and Dishes
January Challenge 2021 Division 3
Watching CPL, Fair Elections, Chef and Division 3, Point Of Impact, Encoded String
February Challenge 2021 Division 3
Frog Sort, Team Name, Chef and Meetings, Maximise Function, Highest Divisor
May Challenge 2021 Division 2 (Rated)
Valid Paths, Tree House, Xor Equality, Tic Tac Toe, Modular Equation
June Challenge 2021 Division 2 (Unrated)
Bella ciao, Summer Heat
September Challenge 2021 Division 2 (Unrated)
Airline Restrictions, Travel Pass
May Long One 2022 Division 2 (Unrated)
The Attack of Queen
Starters 96 Division 3 (Rated)
Remove Multiples, Bells of Pilgrimage, Weeding
Starters 97 Division 3 (Rated)
Caesar Cipher, Schrodinger Smiley, Best of Two
Starters 98 Division 3 (Rated)
FIND A and B, Airport Management, Ball Distribution
Starters 99 Division 3 (Rated)
Segment Three, Card Swipe, Endless Appetizers, Exclusion-Inclusion
Starters 108 Division 2 (Rated)
Palindromic Prime Numbers
Starters 109 Division 3 (Rated)
Minimum XOR, Best of N Sets, Worth of a Video, Alter Ego
August Long 2023 Division 2 (Unrated)
All New CodeChef
Starters 111 Division 2 (Rated)
LCM Mania, Prefixing, Beautiful Strings, Reach Codetown
Starters 114 Division 2 (Rated)
Rock-Paper-Scissors, Christmas Candy
Starters 115 Division 2 (Rated)
Greedy LIS Algorithm, Make All Zero, A PLUS B Remastered, Decorating Christmas Tree
Starters 116 Division 2 (Rated)
ORST , Access Control
Starters 117 Division 2 (Rated)
Equality Etiquette, Not Prime Permutation, Spell Shortening
Starters 118 Division 2 (Rated)
Subset GCD
Starters 119 Division 2 (Rated)
Cookie Day, Another Good String , K Odd Sum
Starters 120 Division 2 (Rated)
Sub or Swp
Starters 122 Division 2 (Rated)
Arya In Grid, Transformation Cost, Man of the Match
Starters 124 Division 2 (Rated)
Binary Parity, Table Strength, Make It One
Starters 127 Division 2
ABC Conjecture, Superincreasing, Anti-Triangle
Starters 129 Division 2 (Rated)
Palindromic Substrings, Ballon d Or, Cake Cutting
Starters 131 Division 2 (Rated)
Dice Deception
Starters 133 Division 2 (Rated)
Maximum Alternating Sum
Starters 135 Division 2 (Rated)
Invert And Equalize
Starters 137 Division 2 (Rated)
Large Differences
Starters 138 Division 2 (Rated)
A power B mod C , Prefix Suffix Inequality, Long Drive, Distinct Substring
Starters 140 Division 2 (Rated)
Make Permutation, Split Permutation, Trick Or Treat, Tree Removal
Starters 141 Division 2 (Rated)
Redundant Array
Starters 147 Division 2 (Rated till 5 stars)
Truth Teller And Liars 101, Independence Day 101, Non-Primes 101, Gold Coins 101
Starters 148 Division 2 (Rated)
The Undisappearance, FightBots
Starters 149 (Rated)
Easy Subarray Sum, Maximise Sum, Chef Loves Beautiful Strings (Easy Version)
Starters 153 (Rated)
Butterfly, Another Game, Colorful Tree (Easy Version)
Starters 154 (Rated)
Add 1 or 2 Game
Starters 156 (Rated)
Count Triplets, Partition Score, Even Numbers Hate
Starters 162 (Rated)
Adjacent Sum Array
Starters 165 (Rated)
Reverse and Alternate, Stable Array, Bulk Discount
Starters 168 (Rated)
Binary Removals, Make Odd