Ravi Jha

February Challenge 2021 Division 3

Highest Divisor

February CodeChef Starters 2021 Division 3 (Rated)

Chef and Coupon

March Challenge 2021 Division 3

Interesting XOR!, Chef and Groups, No Time to Wait

April CodeChef Starters 2021 Division 3 (Rated)

Chef On Island, Hiring Test

May Lunchtime 2021 Division 3

Hoop Jump

May CodeChef Starters 2021 Division 3 (Rated)

Lazy Chef, Correct Sentence

June Challenge 2021 Division 3 (Rated)

Summer Heat

June Lunchtime 2021 Division 3

False Number, HTML Tags, Richie Rich

July Cook-Off 2021 Division 3

Shoe Fit

August Challenge 2021 Division 3 (Rated)

Chef and Bulb Invention, Problem Difficulties, Olympics Ranking

CodeChef Starters 12 Division 3 (Rated)

Good Weather

October Challenge 2021 Division 3 (Rated)

Longest AND Subarray, Digit Removal, MEX-OR, Three Boxes, Which Mixture

October Lunchtime 2021 Division 3

Alternating Work Days, Problem Category

November Challenge 2021 Division 2 (Unrated)

Weird Palindrome Making, Hill Sequence, Equal Coins

November Cook-Off 2021 Division 2

Missing Sums, Make it Divisible

CodeChef Starters 17 Division 2 (Rated)

GCD of Prefixes, New Piece

CodeChef Starters 18 Division 2 (Unrated)

Palindromic Binary Numbers, Compare those strings, Make them equal

CodeChef Starters 19 Division 3 (Rated)

Chef and Contest, Sleepy Chef, Indivisible Permutation

FizzBuzz Division 2 (Rated)

Magical Planks, Substring Minimum Function, Can_Reach

December Challenge 2021 Division 3 (Rated)

Check Mate, Valleys and Hills, Rock Paper Scissors, List of Lists, Utkarsh and Placement tests

December Cook-Off 2021 Division 2

Median Minimization, Musical Chairs

December Lunchtime 2021 Division 2

Maximum Trio, Romantic Reversals

CodeChef Starters 22 Division 2 (Rated)

An Interesting Sequence, Even Subset Xor

January Long 2022 - I, Division 2 (Unrated)

Keplers Law, Prime in a binary string, Covid Spread

January Long 2022 - II, Division 2 (Unrated)

Power Sum, Crying Colours

Exun 2021-22 Division 2 (Rated)

Sarthak and his Magic Grid, Vedant and his Hidden Array

January Cook-Off 2022 Division 2

Palindromes Not Allowed, Mean Maximization, Subsegment Divisibility

CodeChef Starters 23 Division 2 (Unrated)

Average of Three, Subarray Mex

January Lunchtime 2022 Division 2

Subarray permutations, Prefix Zeros

CodeChef Starters 24 Division 2 (Rated)

Anti Palindrome, Avoid Contact, Divisors and Reciprocals, Yet Another Constructive Problem

February Long 2022 - I, Division 2 (Unrated)

Binary Base Basics, N Queens Puzzle Solved !, Chef and the Hair Salon

CodeChef Starters 25 Division 2 (Rated)

Building Towers, Equal MEX, Points and Lines

February Lunchtime 2022 Division 2

Four Equidistant Points on a Grid, Parallel Processing, Magnet Sort

CodeChef Starters 28 Division 2 (Rated)

Permutation Xority, Count the Holidays

March Long One 2022, Division 2 (Unrated)

Akash and Function, Subarray XOR, Substring of a Substring, Akash and Missing Class, Exact Marks, Discus Throw, Bath in Winters, Wordle

March Long Two 2022, Division 2 (Unrated)

Missing Numbers, Same Parity Swaps in Binary Strings

CodeChef Starters 31 Division 2 (Rated)

XOR and AND, Alternating String, Sign Moves, Mexy Array, The Unchanging OR

March Lunchtime 2022 Division 2

Sad Splits, Winter, Adjacency Love

CodeChef Starters 32 Division 2 (Rated)

Maximize the Minimum, Finding Shoes, Training Plans, Flip Sorting

April Cook-Off 2022 Division 2

Chef Goes Shopping, Sticks and Rectangles

CodeChef Starters 33 Division 2 (Rated)

Distinct Dilemma, Broken Life, Non Adjacent Flips, Make Them Equal

CodeChef Starters 34 Division 2 (Rated)

Binary Mismatch, Average Array, Binary String Xor, Good Permutation

April Lunchtime 2022 Division 2(Rated)

Buckets Full of Candies, Pair Pain

Starters 35 Division 2 (Rated)

Jump to Sibling, Dark Light, Admins and Shopping

Starters 36 Division 2 (Rated)

Buying Sweets, Presents for Cheffina

May Cook-Off 2022 Division 2 (Rated)

Different Subarrays Rearrange, Doubled Distances, Triple Inversions

Starters 37 Division 2 (Rated)

Beat the Average, Infernos, Maximum OR Minimum

Starters 38 Division 2 (Rated)

Good Pairs, Average Gift, Circular Track

Starters 39 Division 2 (Rated)

Compress the Video, Closest Vowels, Even Subarray XOR

May Long Two 2022 Division 2 (Unrated)

Xor Palindrome, Make them Zero

Starters 40 Division 2 (Unrated)

Infinity Staircase, Or Permutation, Good Pairs, Take discount or Not

July Cook-Off 2022 Division 2 (Rated)

Permutation And Median, Xor Permutation, Segmentation Fault

Starters 41 Division 2 (Rated)

Equal Integers, Is this priority or parity!, Path Parity

June Cook-Off 2022 Division 2 (Rated)

Simple XOR, Break the Stick, Split AND Sum

Starters 42 Division 2 (Rated)

Minimum or Maximum, Divisible by 3

June Long One 2022 Division 2 (Unrated)

Divisible by i , Possible GCD, Alternate Additions, Equal Strings

Starters 43 Division 2 (Rated)

The Optimal Pairs, Distinct Palindrome

June Lunchtime 2022 Division 2 (Rated)

Zero Ones Equal One Zeros, The Lost Array, Max Shift After XOR, XOR Times 2 Is Sum, Equal by XORing

June Long Two 2022 Division 2 (Unrated)

Reversal Sorting

Starters 45 Division 2 (Rated)

Even Equal Odd, Retrieve the Array, Adjacent Sum Parity

July Long One 2022 Division 2 (Unrated)

Journey of the Knight, Slow Solution

Starters 46 Division 2 (Rated)

Prime Xor, Vowel Anxiety, Array sorting, Sort the String

Starters 47 Division 2 (Rated)

Copy and Push Back, Similar Heights, End Sorted

Starters 48 Division 2 (Rated)

Fill The Grid, Make Palindrome 2, Positive array

July Long Two 2022 Division 2 (Unrated)

Maximize Difference, Concat Sort, To Divide or Not To Divide, Sum of Product 1

Starters 49 Division 2 (Rated)

Split The String, High Frequency, Monks, Valid Minimum

Starters 50 Division 2 (Rated)

Air Blimp, Permutation GCD, Sum Product Segments, Average Permutation

Starters 51 Division 2 (Rated)

Adjacent Xors, Split N, Copy and Paste, Different Medians

August Long 2022 Division 2 (Unrated)

XOR with smallest element, Hello Equation, Two Trains

Starters 52 Division 2 (Unrated)

Minimum Sum, WA Test Cases, K-Flip

August Lunchtime 2022 Division 2 (Rated)

Easy Permutation, Array Equality

Starters 53 Division 2 (Rated)

Make A and B equal

Starters 54 Division 2 (Unrated)

Equal Distinct, K Flip

Starters 55 Division 2 (Rated)

Non Zero Xor, Balls and Boxes, Mean and Median, OR Tuples

September Long 2022 Division 2 (Unrated)

Pokemon Battles, Interesting Subarray, Good Pairs

Starters 56 Division 2 (Rated)

K-Subarrays, Maximize Colours

September Lunchtime 2022 Division 2 (Rated) (Based on EJOI)

Stick Break, Permutation Creation

Starters 59 Division 2 (Rated)

Maximum Subarray , Suspense String, Confusing Concatenations

October Long 2022 Division 2 (Unrated)

Building Race

Starters 60 Division 2 (Rated)

Distinct Numbers, Yet Another Palindrome Problem, Palindrome Flipping

Starters 62 Division 2 (Rated)

Sorted Substrings, Make Multiple, Final Sum

Starters 63 Division 2 (Rated)

One-XOR Deletions, Make Length 1, Minimum Absolute Score

Starters 64 Division 2 (Rated)

Luigi and Uniformity, Range Assign, Number of Distinct Elements Minimize, Distinct Neighbours

Starters 65 Division 2 (Rated)

Nahaane Jaa, Candies, Binod

Starters 66 Division 2 (Rated)

Good Binary Strings, Palindrome by Splitting, Connect All Cities, Palindrome In Making, Just Like Mob!

Starters 67 Division 2 (Rated)

Maximum Angriness, Musical Rods, Expensive Steps , Counting Problem, Existence Of X

Starters 68 Division 2 (Rated)

Boring String, XOR Product, Expense List, Interesting Array, Make Money

Starters 69 Division 1 (Rated till 6-stars)

Distinct Sequence

Starters 70 Division 2 (Rated)

Minimum distance between 1s, Prime Reversal, Frequency Array Retrieval

Starters 71 Division 2 (Rated)

Pet Store, Flip the Prefix, Instagram, Snapchat, Perfect Trio, Maximizing LCS

Starters 72 Division 2 (Rated)

N Triplets, Good Sequence, No sequence

Starters 73 Division 1 (Rated till 6-Stars)

Consecutive Xor

Starters 74 Division 1 (Rated till 6-Stars)

Lcm hates Gcd, Minimal Inversions

Starters 75 Division 2 (Rated)

Prefix Ones, Three Powers of Two

February Cook-Off 2023 Division 2 (Rated)

Take Not Less, Permutation and Modulus

Starters 77 Division 2 (Rated)

Concat Palindrome

Starters 78 Division 2 (Rated)

Bitwise Equation, Valid Expression

Starters 79 Division 2 (Rated)

Mountain, One Stone or Two Stones, Add smallest prime factor, Distinct Opposite Sums

Starters 82 Division 2 (Rated)

Find eX, Make A-B Same, Difference Matrix, MIN To MAX

Starters 86 Division 2 (Rated)

String Game , Largest Y, Maximise Score

Starters 87 Division 2 (Rated)

Inversions of subsequences, Existence, AB plus C

Starters 83 Division 2 (Rated)

Construct String, Order by XOR

Starters 88 Division 2 (Rated)

Chef and Asteroids, Unstable Subarray

Starters 89 Division 2 (Rated)

Plus 2 or Minus 1, Positive or Negative Subarrays

Starters 90 Division 2 (Rated)

Crushed Apples and a Balance Scale, Sum of Goodness, Printing Binary Array, Anti Palindrome

Starters 91 Division 2 (Rated)

Odd GCD Permutation, Chef Odd, Blobby Volley Scores, Maximum Sum Permutation

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, Possible or Not, The Vowel Matrix

Starters 95 Division 2 (Rated)

Boxes, Transfusion Chain, EVacuate to Moon

Starters 97 Division 2 (Rated)

Schrodinger Smiley, Triplets Min

Starters 98 Division 2 (Rated)

Airport Management, Ball Distribution

Starters 99 Division 2 (Rated)

Card Swipe, Exclusion-Inclusion

Starters 100 Division 2 (Rated)

Stamps 100

Starters 101 Division 2 (Rated)

Minimize Xor Difference, Warrior Chef, Lockpicking Chef

Starters 104 Division 2 (Rated)

Lexicographically Largest , Maximise Sum, Pizza Cutting, GCD and LCM

Starters 105 Division 2 (Rated)

Take it Easy, Dull Operation

Starters 106 Division 2 (Rated)

Playing with OR, Save People

Starters 107 Division 2 (Rated)

Rock Paper Scissor, OR Permutation

Starters 108 Division 2 (Rated)

Clan Expansion, Palindromic Prime Numbers, Chess Pairing

Starters 109 Division 2 (Rated)

Minimum XOR, Best of N Sets, Alter Ego

August Long 2023 Division 2 (Unrated)

All New CodeChef

Starters 114 Division 2 (Rated)

Rock-Paper-Scissors, Christmas Candy

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

Starters 120 Division 2 (Rated)

Sub or Swp

Starters 121 Division 2 (Rated)

Caesar Cipher Lite, Anti Adjacent Swaps

Starters 123 Division 2 (Rated)

Maximise Adjacent Sum, Check Adjacent Sum, Minimum And Maximum I, Minimum And Maximum II

Starters 128 Division 2 (Rated)

Binary Substring, MEXimize the Array, Disjoint Non-Decreasing Array

Starters 137 Division 2 (Rated)

Double Trouble, Large Differences

Starters 142 Division 2 (Rated)

Chef loves Pizza Chef loves halfs, Array Removal, Number Hunt

Starters 143 Division 2 (Rated)

Non-Divisor Array, Binary Conversion

Starters 144 Division 2 (Rated)

Budget Allotment, Largest K

Starters 146 Division 2 (Rated till 5 stars)

Bouncing Ball, Permutation Construction, Knockout tournament

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)

FightBots

Starters 149 (Rated)

Easy Subarray Sum, Maximise Sum, Chef Loves Beautiful Strings (Easy Version)

Starters 152 (Rated)

Maximize Hamming Distance, Anti-Palindrome Queries, Range Minimize

Problems Authored (5)

Problems Tested (0)

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Editorials Contributed (0)

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