Learning Paths (0)
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Practice Paths (0)
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Contests (50)
Starters 116 Division 4 (Rated)
Chef Product, Hattrick, ORST , Minimum Wage, Access Control
Starters 117 Division 3 (Rated)
Equality Etiquette, Not Prime Permutation, Weapon Choice, Spell Shortening
Starters 118 Division 2 (Rated)
Subset GCD, Join States, Is it uniquely decodable, Xorry 2, Xorry 1
Starters 119 Division 2 (Rated)
Cookie Day, Another Good String , K Odd Sum, Unalike Gcd & Lcm
Starters 121 Division 2 (Rated)
Frequal, Split And Maximize, Caesar Cipher Lite, Anti Adjacent Swaps
Starters 124 Division 2 (Rated)
Binary Parity, Table Strength, Swap and Unite, Make It One
Starters 125 Division 2 (Rated)
Bucket Game, Operating on A, Fake Certificate, Binary Minimal
Starters 126 Division 2 (Rated)
Freedom, Permutation Disturbance, Triangular Swaps
Starters 127 Division 2
ABC Conjecture, Superincreasing, Anti-Triangle
Starters 128 Division 1 (Rated till 6-Stars)
Binary Substring, XOR And Multiply
Starters 129 Division 2 (Rated)
Palindromic Substrings, Ballon d Or
Starters 130 Division 2 (Rated)
Updating A, Make Equal, Alternating Binary String
Starters 131 Division 2 (Rated)
Dice Deception, Encrypt Value
Starters 132 Division 2 (Rated)
ALIEN-OR, Optimal Flip, MEX QUERIES , Prime Query, GAME 11
Starters 134 Division 2 (Rated)
Origin, Morning Run, Money Double, Rock Paper Scissors, 3out1in
Starters 135 Division 2 (Rated)
Graph Cost, Invert And Equalize, Change A to B
Starters 137 Division 1 (Rated till 5-Stars)
Speedrun, Double Trouble
Starters 138 Division 1 (Rated till 6-Stars)
A power B mod C , TRIPLE PRIMES, Prefix Suffix Inequality, Distinct Substring
Starters 139 Division 1 (Rated till 5-Stars)
Sort Perm, Sum of N, Destroying Bridges Part 2
Starters 141 Division 1 (Rated till 5-Stars)
Redundant Array, Amphibian Escape, Nearly Equal, Lucky Clover, Perfect Prefixes
Starters 143 Division 1 (Rated till 5-Stars)
Non-Divisor Array, Max Min and Length
Starters 144 Division 1 (Rated)
Minimise Inversions, Largest K
Starters 146 Division 1 (Rated till 5 stars)
Back Front, 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 150 (Rated till 6 stars)
Equal Pairs (Hard), Replacing Game
Starters 151 (rated till 5 stars)
Ball Game
Starters 152 (Rated till 6 stars)
Completion (Hard), Maximize Hamming Distance, Completion (Easy), Anti-Palindrome Queries
Starters 153 (Rated till 5 stars)
Another Game, Colorful Tree (Easy Version), Xometry (Easy Version), Xometry (Hard Version)
Starters 154 (Rated till 6 stars)
Count Winning Subarrays, GCD and XOR, Triangle Count (Easy)
Starters 156 (Rated till 6 stars)
Partition Score
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), Glass Bridge (Hard), Super Hero, Random Nim, Glass Bridge (Easy), Chess Colouring, Elections
Starters 160 (Rated till 5 stars)
Palindrome Love, Modindrome, Buying Order (Easy), Buying Order (Hard)
Starters 161 (Rated)
Min-Max Game, Red-Blue Sort, One To Three, Quick Exit
Starters 162 (Rated till 5 stars)
Empty the String, MEX of XOR, Permutation Mod K
Starters 163 (Rated till 5 stars)
Nice Array, Sort Them, Lexio Swap
Starters 164 (Rated till 5 stars)
Halloween Array, Construct Permutation, Connecting Wells
Starters 166 (Rated till 6 stars)
Distinct Power, Divisors Array (Hard Version), Divisors Array (Easy Version), Costly Permutations, Chefland Library
Starters 168 (Rated till 6 stars)
No Two Alike, Binary Removals, Xoperations, Equate XOR
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)
GCD Add Size, Meximal Sum, 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)
Blocks on a Tree, Flip or Reverse, Counting 01 and 10
Starters 178 (Rated till 6 star)
Smoothly Increasing , Big Difference, Minimum Colours (Hard)
Starters 179 (Rated till 5 star)
Product Path, Station Allocation, Can you reach
Starters 180 (Rated till 6 star)
Shall we play a game, Huh, Easy, Counting Problem
Starters 181 (Rated for all)
The Best Matrix, Tree Colouring (Hard), Flip Prefix
Starters 182 (Rated till 5 star)
MasterChef, Palindromic Score
Starters 183 (Rated till 6 star)
Arbitrary Shuffling, Complete MST, S to T
Starters 184 (Rated till 5 star)
Front or Back, Double or Append
Starters 186 (Rated till 6 star)
Distinct Arrays
Starters 187 (Rated till 6 star)
Anti-Subarray Sum, OR What, Distinct Representations
Starters 190 (Rated till 5 star)
Parry It! (Hard), Subsequence Sort, Min-Max Deletion
Starters 191 (Rated till 6 star)
Add 1 or 2, Grid Path (Easy), Permuted Greater than 2
Starters 192 (Rated till 6 star)
Priority Customers (Easy), MinPath Minimize, Equate XY, No 3 Please!
Starters 199 (Rated till 5 star)
Perfect Ranges, Fence Colouring, Grid MEX, XOR Game
Starters 200 (Rated for all)
Permutation Counting (Easy), Minimum Set, Restrict Palindromes
Starters 201 (Rated till 6 star)
Compare and Connect, Huge Grid (Easy Version), Delete Maximum
Starters 202 (Rated for 5 star)
If Only I Could Read, Min-Max Deque (Easy)
Starters 206 (Rated till 5 star)
Cyclic Shift Minimization, MEX Tree, Product Equal Sum, Min Steps, Gladiator Fighting
Starters 209 (Rated till 5 star)
Binary Love, Tactical Conversion
Starters 211 (Rated till 6 - star)
Subarray Maximums, No Doubling, Tournament Rigging (Minimum)
Starters 213 (Rated till 5 star)
Mean Difference (Easy), Chef and String, Separation, Maximum Product Walk
Total Problems Solved: 246
