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(2025-11-19 22:00:02)Learning Paths (1)
Practice Paths (1)
Contests (71)
Starters 102 Division 4 (Rated)
Parity Permutation, Bit Play, Array Sum, Sports Section, Selling Insurance, Chef and Stocks
Starters 103 Division 2 (Rated)
Chandelier, Unique xor, Divisible By 8, Dice Number
Starters 104 Division 2 (Rated)
Lexicographically Largest , Maximise Sum, GCD and LCM
Starters 105 Division 2 (Rated)
Take it Easy, Spooky Sequences, Dull Operation, Wishcraft
Starters 106 Division 1 (Rated till 5 Stars)
Playing with OR, Save People
Starters 107 Division 2 (Rated)
Maximal Expression, Adjacent Flips, Odd Matrix, Rock Paper Scissor, OR Permutation
Starters 108 Division 1 (Rated till 6 Stars)
Palindromic Prime Numbers
Starters 109 Division 1 (Rated till 5 Stars)
Minimum XOR, Alter Ego
SQL Contest (Unrated)
First Problem on SQL
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, Permutation Construction
Starters 114 Division 1 (Rated till 6 Stars)
Yet another Matrix problem, Rock-Paper-Scissors
Starters 115 Division 1 (Rated)
Greedy LIS Algorithm, Make All Zero
Starters 117 Division 2 (Rated)
Equality Etiquette, Spread Spree, Not Prime Permutation, Spell Shortening
Starters 118 Division 1 (Rated till 5-Stars)
Join States, Is it uniquely decodable, Xorry 2, Xorry 1
Starters 119 Division 1 (Rated till 6-Stars)
K Odd Sum
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, Matrix Modulo
Starters 124 Division 1 (Rated till 5-Stars)
Swap and Unite, Make It One
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, 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 132 Division 1 (Rated till 6 Stars)
ALIEN-OR, Optimal Flip, Prime Query
Starters 133 Division 1 (Rated till 6-Star)
Powered Parameters
Starters 134 Division 1 (Rated till 6-Stars)
Origin, Prison Escape, 3out1in
Starters 135 Division 1 (Rated till 5-Stars)
Graph Cost, Change A to B
Starters 136 Division 1 ( Rated till 6-Stars )
Lexicographically Maximal Prefix AND, Sum of Modes
Starters 137 Division 1 (Rated till 5-Stars)
Double Trouble
Starters 138 Division 1 (Rated till 6-Stars)
A power B mod C , Prefix Suffix Inequality, Breezy Mode Problem, Distinct Substring
Starters 139 Division 1 (Rated till 5-Stars)
Sort Perm, 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)
Amphibian Escape, Perfect Prefixes
Starters 142 Division 1 (Rated till 5-Stars)
Array Removal, Number Hunt
Starters 143 Division 1 (Rated till 5-Stars)
Non-Divisor Array
Starters 145 Division 1 (Rated till 6-Stars)
Make Bob Win , Square String
Starters 147 Division 1 (Rated till 5 stars)
Truth Teller And Liars 101, Independence Day 101, Non-Primes 101, Gold Coins 101
Starters 150 (Rated till 6 stars)
Equal Pairs (Hard), Min Ops (Hard), Replacing Game
Starters 151 (rated till 5 stars)
Ball Game, Sequence Search
Starters 152 (Rated till 6 stars)
Maximize Hamming Distance, Completion (Easy), Anti-Palindrome Queries
Starters 153 (Rated till 5 stars)
Another Game, Colorful Tree (Easy Version)
Starters 155 (Rated till 5 stars)
GCD to 1 (Hard), Replace With First, Prefix Suffix Min Max
Starters 156 (Rated)
Count Triplets, Interval Cliques, Partition Score, Even Numbers Hate
Starters 157 (Rated till 5 stars)
Small, Smaller, Smallest, Normal is Good, Unmedian
Starters 166 (Rated till 6 stars)
Distinct Power, Chefland Library
Starters 167 (Rated)
Alternate Universe, Temperature Balance, Lottery Tickets, Delete Not Equal, Grid Construction (Even), Grid Construction (Odd)
Starters 168 (Rated till 6 stars)
No Two Alike, Binary Removals
Starters 169 (Rated till 5 stars)
Constant Subsequence, Hamming equivalent
Starters 170 (Rated till 6 star)
Crazy Jumping Frogs, qUiRkY qUesTs (Easy)
Starters 171 (Rated till 5 star)
White Wall, Volcanic Eruption
Starters 172 (Rated till 5 stars)
Transform String, AndOr
Starters 173 (Rated upto < 2700)
Cool Subsequences, Introverts, Time Penalty, Overwrite
Starters 174 (Rated upto 2700)
Mystic Slimes
Starters 175 (Rated till 5 stars)
Alternate It!, Multiplexer
Starters 176 (Rated till 4 star)
Same And, Friendly Binary Strings, Costly Summit
Starters 177 (Rated till 5 star)
Flip or Reverse
Starters 178 (Rated)
Big Difference, Placing 01 And 10
Starters 179 (Rated)
Lost in the Fest!!, Station Allocation, Unlock The Safe, Can you reach
Starters 182 (Rated)
Bar Queue, Beautiful Garden, Palindromic Score
Starters 184 (Rated)
One Down, Front or Back
Starters 186 (Rated)
Distinct Arrays , Jump A or B, Approval Ratings
Starters 187 (Rated)
Anti-Subarray Sum, OR What, Incremental Game, Distinct Representations
Starters 188 (Rated)
K Boxes, Yet Another Monsters Problem, Subset Sum 3
Starters 189 (Rated)
Nutrition Cost, Create Binary String, Avoid Primes, Sortable Subarrays (Easy)
Starters 200 (Rated)
Random NIM, Restrict Palindromes, Good Subsequence
Starters 207 (Rated)
Make Subarray
Starters 212 (Rated)
Exit Door, Interesting Binary (Easy Version), Distinct Fun, Binary Flip
Starters 213 (Rated)
Mean Difference (Easy), Chef and String, Separation, No 4 Please