Koushik Jalan
Rookie League
- koushikjalan
India- Student
- Indian Institute of Information Technology, Ranchi Jharkhand, India
- No Active Plan. View Details
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Learning Paths (0)
Practice Paths (1)
Contests (75)
Starters 85 Division 4 (Rated)
Crazy Bishops on Chessboard, Efficient PAN Linking, Inside The Stadium, IPL Ticket Rush, Can Chef
Starters 86 Division 4 (Rated)
String Game , Cricket Match, Chef and Battery , CodeChef Learn Problem Solving, Maximise Score
Starters 87 Division 3 (Rated)
Return the Change, Existence, AB plus C
Starters 88 Division 2 (Rated)
Maximum And Or, Unstable Subarray
Starters 89 Division 2 (Rated)
Plus 2 or Minus 1, Positive or Negative Subarrays
Starters 91 Division 2 (Rated)
Odd GCD Permutation, Chef Odd, Blobby Volley Scores
Starters 92 Division 2 (Rated)
Rectangular Tiling, Distance Coloring, Dotify Playlist
Starters 93 Division 2 (Rated)
Break Free, Problem
Starters 94 Division 2 (Rated)
CodeChef Streak
Starters 95 Division 2 (Rated)
Transfusion Chain, EVacuate to Moon
Starters 96 Division 2 (Rated)
Mex Array, Remove Multiples
Starters 97 Division 2 (Rated)
Schrodinger Smiley, No Palindrome
Starters 99 Division 2 (Rated)
Segment Three, Exclusion-Inclusion
Starters 100 Division 3 (Rated)
Prime Permutation, Trade Surplus, Chocolate Distribution, Concussive Sequence, Ant
Starters 101 Division 2 (Rated)
Minimize Xor Difference, Warrior Chef, Lockpicking Chef
Starters 102 Division 2 (Rated)
Parity Permutation, Bit Play
Starters 105 Division 2 (Rated)
Take it Easy, Dull Operation, Wishcraft
Starters 106 Division 2 (Rated)
Playing with OR, Save People, Guess the winner!
Starters 107 Division 2 (Rated)
Maximal Expression, Rock Paper Scissor, OR Permutation
Starters 109 Division 2 (Rated)
Minimum XOR, Best of N Sets, Alter Ego
September Short 2023 Division 3 (Unrated)
Lucky Seven, Slow Start
Starters 111 Division 2 (Rated)
LCM Mania, Prefixing, Beautiful Strings, Reach Codetown
Starters 113 Division 2 (Rated)
Minimise Maximum Subarray Sum, Make All Equal, Maximum Score , Sum Neq
Starters 114 Division 2 (Rated)
Game on Array, Rock-Paper-Scissors, Christmas Candy
Starters 115 Division 2 (Rated)
Greedy LIS Algorithm, Make All Zero, A PLUS B Remastered, Decorating Christmas Tree
Starters 117 Division 2 (Rated)
Equality Etiquette, Spread Spree, Not Prime Permutation, Spell Shortening
Starters 118 Division 2 (Rated)
Subset GCD, Join States, Xorry 2, Xorry 1
Starters 119 Division 2 (Rated)
Cookie Day, Another Good String , K Odd Sum, Unalike Gcd & Lcm
Starters 120 Division 2 (Rated)
Find Permutation , Construct Permutation, Count Subarrays, Count Arrays, Sub or Swp
Starters 121 Division 1 (Rated till 6-Stars)
Frequal, Split And Maximize, Caesar Cipher Lite
Starters 122 Division 1 (Rated till 6-Stars)
Arya In Grid, Transformation Cost
Starters 123 Division 1 (Rated till 6-Stars)
Minimum And Maximum I, Yet Another Alice Bob Game, Minimum And Maximum II
Starters 126 Division 1 (Rated till 6 Stars)
Freedom, Triangular Swaps
Starters127 Division 1
ABC Conjecture, Anti-Triangle
Starters 128 Division 1 (Rated till 6-Stars)
Binary Substring, XOR And Multiply
Starters 130 Division 1 ( Rated till 6-Stars)
Updating A, Make Equal, Good Binary String
Starters 131 Division 1 (Rated till 5 Stars)
K-Closeness, Encrypt Value, T-Perm
Starters 133 Division 1 (Rated till 6-Star)
ABC Conjecture 3, Powered Parameters
Starters 137 Division 1 (Rated till 5-Stars)
Speedrun, Double Trouble, Unusual Queries
Starters 139 Division 1 (Rated till 5-Stars)
Sum of N
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)
Amphibian Escape, Perfect Prefixes
Starters 142 Division 1 (Rated till 5-Stars)
Sum of Xors, Array Removal, Number Hunt
Starters 143 Division 1 (Rated till 5-Stars)
Non-Divisor Array, Max Min and Length
Starters 144 Division 1 (Rated)
Find P, Largest K
Starters 146 Division 1 (Rated till 5 stars)
Bouncing Ball, Permutation Construction
Starters 147 Division 1 (Rated till 5 stars)
Truth Teller And Liars 101, Independence Day 101, Non-Primes 101, Gold Coins 101
Starters 149 (Rated till 5 stars)
Kill Monsters (Hard Version), Maximise Sum, Chef Loves Beautiful Strings (Easy Version)
Starters 150 (Rated till 6 stars)
Equal Pairs (Hard)
Starters 152 (Rated till 6 stars)
Maximize Hamming Distance, Completion (Easy)
Starters 154 (Rated)
GCD and XOR, Triangle Count (Easy), Add 1 or 2 Game
Starters 155 (Rated)
GCD to 1 (Easy), GCD to 1 (Hard), Replace With First, Prefix Suffix Min Max, Array Concatanation
Starters 157 (Rated till 5 stars)
Small, Smaller, Smallest, Normal is Good, Unmedian
Starters 158 (Rated till 6 stars)
Buying Game, Multiply 2 to Minimize
Starters 159 (Rated till 5 stars)
Crafty Coloring (Easy), Super Hero, Random Nim, Chess Colouring, Elections
Starters 160 (Rated till 5 stars)
Palindrome Love, Buying Order (Easy), Buying Order (Hard)
Starters 161 (Rated)
Red-Blue Sort, One To Three
Starters 162 (Rated till 5 stars)
Empty the String, Permutation Mod K
Starters 164 (Rated till 5 stars)
Halloween Array, Construct Permutation, Connecting Wells
Starters 165 (Rated till 6 stars)
A to B, Stable Array, Reverse and Alternate (Count)
Starters 167 (Rated till 5 stars)
Alternate Universe, Temperature Balance, Lottery Tickets, Grid Construction (Even), Grid Construction (Odd)
Starters 168 (Rated till 6 stars)
No Two Alike, Binary Removals, Xoperations, Equate XOR
Starters 169 (Rated till 5 stars)
Constant Subsequence, Hamming equivalent
Starters 170 (Rated till 6 star)
Array Compression, Crazy Jumping Frogs, qUiRkY qUesTs (Easy)
Starters 173 (Rated upto < 2700)
Cool Subsequences, Time Penalty, Overwrite
Starters 174 (Rated upto 2700)
Mystic Slimes
Starters 175 (Rated till 5 stars)
Alternate It!, Multiplexer
Starters 179 (Rated till 5 star)
Station Allocation, Can you reach
Starters 180 (Rated till 6 star)
Shall we play a game, Huh, Easy, Counting Problem
Starters 183 (Rated till 6 star)
Arbitrary Shuffling, Complete MST, S to T
Starters 186 (Rated till 6 star)
Distinct Arrays , Segment Tree Reconstruction, Mod and Make Y
Starters 188 (Rated till 6 star)
Yet Another Monsters Problem
Starters 189 (Rated till 5 star)
Blocks in a String, Create Binary String, Avoid Primes, Sortable Subarrays (Easy)
Starters 190 (Rated till 5 star)
Subsequence Sort, Min-Max Deletion
Starters 191 (Rated till 6 star)
Grid Path (Easy), Permuted Greater than 2