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Learning Paths (2)
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Contests (16)
Starters 86 Division 4 (Rated)
Minimum Operation, String Game , Cricket Match, Chef and Battery , Largest Y, CodeChef Learn Problem Solving, Maximise Score
Starters 87 Division 2 (Rated)
Checkpoint, Inversions of subsequences, Existence, AB plus C, One or All
Starters 88 Division 1 (Rated till 6 Stars)
Maximum And Or, Chef and Asteroids, Minimize the Bits, Chef and Good Array
Starters 90 Division 1 (Rated till 6 Stars)
Crushed Apples and a Balance Scale, Minimum Ugliness, Sum of Goodness, Printing Binary Array, Anti Palindrome
Starters 91 Division 1 (Rated till 6 Stars)
XOR & Sum, Odd GCD Permutation, Chef Odd, Maximum Sum Permutation
Starters 92 Division 1 (Rated till 6 Stars)
Rectangular Tiling, Dividing into Groups, A Peculiar Arrangement, Beautification of array, Distance Coloring
Starters 93 Division 1 (Rated for All)
Thank U, Next, Why Try, NASA, Greedy, Bloodline, Motive
Starters 94 Division 1 (Rated till 5 Stars)
Place The Number, Possible or Not, Search for 404, Special Operation, The Vowel Matrix, Rank Queries
Starters 95 Division 1 (Rated till 6 Stars)
Chef and Moves of GCD, Boxes, Transfusion Chain, Break This Array
Starters 96 Division 1 (Rated till 5 Stars)
Swap the numbers, Remove Stones, Zero Array, Mex Array, Absolute Differences
Starters 97 Division 1 (Rated till 6 Stars)
Make It Special, Unreachability Cost, No Palindrome, Triplets Min
Starters 99 Division 1 (Rated till 6 Stars)
Segment Three, Maximize Ones, Musical Chairs, Two Piles, Yet Another Bitwise Problem, Exclusion-Inclusion
Starters 100 Division 1 (Rated)
Prime Permutation, Stamps 100, Concussive Sequence, Ant
Starters 101 Division 1 (Unrated)
Minimize Xor Difference, Split and ADD, Snakes on a Grid, Warrior Chef
Starters 102 Division 1 (Rated till 6 Stars)
Chess ELO, Parity Permutation, Light The Bulb, Chef Segment, Bit Play
Starters 103 Division 1 (Rated till 6 Stars)
Squarified, Chandelier, Unique xor, Divisible By 8
Starters 105 Division 1 (Rated till 6 Stars)
Ghoul-icious Goodies, Spooky Sequences, Dull Operation, Wishcraft
Starters 106 Division 1 (Rated till 5 Stars)
Playing with OR, Save People, Guess the winner!, Count Possibilities, Smallest Excluded LCM, Reach Anywhere, Summing the values, Is it Obvious
Starters 107 Division 1 (Rated till 6 Stars)
Maximal Expression, Interesting Knapsack, Adjacent Flips, Odd Matrix, OR Permutation
Starters 109 Division 1 (Rated till 5 Stars)
Minimum XOR, Chef Lost an Array, Alter Ego, Chroma Swap, Rigged Game
August Long 2023 Division 1 (Unrated)
Codechef Copy, Spiritual Chef, All New CodeChef, Maximum Deliciousness, I Can Use Both Hands!
September Short 2023 Division 1 (Unrated)
GCD Discount, Ultimate Fencing, Lucky Seven, Slow Start, Mixing Extraordinaire
SQL Contest (Unrated)
First Problem on SQL, Number of Distinct Institutes, Div 2 Ranklist, Total Time, Maximum Sum Subarray - SQL
Starters 110 Division 1 (Rated till 5-stars)
Marbles, Am I Lucky!, Tom and Jerry, World Cup, Monsters, Tetris
Starters 113 Division 1 (Rated)
Count Distinct Arrays, Minimise Maximum Subarray Sum, Make All Equal, Score Sum, Maximum Score
Starters 114 Division 1 (Rated till 6 Stars)
Yet another Matrix problem, Game on Array, Chef and Tag, Rock-Paper-Scissors, Lexicographic Rook on a Graph
Starters 115 Division 1 (Rated)
Delete The Array, Subtraction Sequence I, Greedy LIS Algorithm, Binary Grid Forces, Make All Zero
Starters 117 Division 1 (Rated till 5-Stars)
Equality Etiquette, Spread Spree, Stingy Arrays, Go Away, Goose!, Not Prime Permutation, Roads and Flights
Starters 118 Division 1 (Rated till 5-Stars)
Water buckets, Count Substrings, Join States, Is it uniquely decodable, Xorry 2, Xorry 1
Starters 119 Division 1 (Rated till 6-Stars)
K Odd Sum, Xorred, Unalike Gcd & Lcm, Guess Who Delivers
Starters 121 Division 1 (Rated till 6-Stars)
Frequal, Colourful Balls, Split And Maximize, Escape, Caesar Cipher Lite, Magic Palindrome
Starters 122 Division 1 (Rated till 6-Stars)
Arya In Grid, Transformation Cost, Matrix Modulo, Elf on the Shelf
Starters 123 Division 1 (Rated till 6-Stars)
Minimum And Maximum I, Making Stars, Yet Another Alice Bob Game, Trial of the Conqueror, Minimum And Maximum II, XOR Partition Sort
Starters 124 Division 1 (Rated till 5-Stars)
Swap and Unite, Make It One, How many arrays
Starters127 Division 1
Array Operations, ABC Conjecture, Anti-Triangle
Starters 128 Division 1 (Rated till 6-Stars)
Binary Substring, XOR And Multiply, Counting Problem
Starters 131 Division 1 (Rated till 5 Stars)
K-Closeness, Digit Space, Encrypt Value, T-Perm
Starters 138 Division 1 (Rated till 6-Stars)
A power B mod C , TRIPLE PRIMES, K Subarray Products, Prefix Suffix Inequality, Breezy Mode Problem, Distinct Substring
Starters 139 Division 1 (Rated till 5-Stars)
Sum of N, Counting in Base B, Destroying Bridges Part 2
Starters 140 Division 1 (Rated till 5-Stars)
Lucky Matrix, Split Permutation, Trick Or Treat, Break The String, Tree Removal
Starters 141 Division 1 (Rated till 5-Stars)
Possible Contender, Amphibian Escape, Perfect Prefixes
Starters 142 Division 1 (Rated till 5-Stars)
Sum of Xors, Pairs Sum with Length x, Ratist Behaviour, The Cards Machine, Array Removal, Number Hunt
Starters 144 Division 1 (Rated)
Counting Is Fun, Find P, Minimise Inversions, Largest K
Starters 145 Division 1 (Rated till 6-Stars)
Beautiful Array, Make Bob Win , Querified, Token Passing on Tree, Square String
Starters 146 Division 1 (Rated till 5 stars)
Back Front, Connect The Chains, Bouncing Ball, Permutation Construction
Starters 147 Division 1 (Rated till 5 stars)
Counting Triangles 101, K Subsequence 101, Counting is Fun 101, Truth Teller And Liars 101, Independence Day 101, Non-Primes 101, Shortest Distances 101, Gold Coins 101
Starters 149 (Rated till 5 stars)
Kill Monsters (Hard Version), Maximise Sum, Chef Loves Beautiful Strings (Hard Version), Construct Degree, Chef Loves Beautiful Strings (Easy Version)
Starters 150 (Rated till 6 stars)
Equal Pairs (Hard), Min Ops (Hard), Tree Requirements (Easy), Replacing Game
Starters 152 (Rated till 6 stars)
Alien Operation, Completion (Hard), Maximize Hamming Distance, Completion (Easy), Anti-Palindrome Queries
Starters 160 (Rated till 5 stars)
Palindrome Love, Modindrome, Buying Order (Easy), Buying Order (Hard)
Starters 161 (Rated)
Min-Max Game, Red-Blue Sort, The XOR Machine, One To Three, Quick Exit