Shiven Sinha

April Challenge 2017

Similar Dishes

May Challenge 2017

Chef and his daily routine, Courses in an university

March Cook-Off 2017

Safe Robot

December Lunchtime 2017

Days in Month

January Cook-Off 2018

Survive in ChocoLand

ProCon Junior (Rated for Division 2)

Chef and Secret Ingredient, Chef and Bored Games, Chef and Polygon Cakes

December Challenge 2019 Division 2

Chefina and Ranges, Plus Multiply, Binary XOR, Easy Subsequence Selection, That Is My Score!, Addition

December Cook-Off 2019 Division 2

Change It, Purify It

December Lunchtime 2019 Division 1

The Evil Professor, Guess the number

January Challenge 2020 Division 1

Chef and Dynamo, Doraemon, Chefina and Prefix Suffix Sums, English

February Challenge 2020 Division 1

Chef and Railway Stations, No Change Required, School of Geometry, Hard Cash, (Challenge) Raisins, Long Contest and Cook Off Overlaps

March Challenge 2020 Division 1

Chef and DAG, Lasers Everywhere

April Challenge 2020 Division 1

Strange Number, Squared Subsequences, Ready Bitwise, Leaked Answers (Challenge)

March Cook-Off 2020 Division 1

Mysterious Sequence, Maximize Letter Beauty

February Lunchtime 2020 Division 1

Swapping to Palindrome

April Lunchtime 2020 Division 1

Positive Mex

May Lunchtime 2020 Division 1

Convert the String

ENIGMA - PLINTH'20 LNMIIT (Rated for all)

Gru is Handing Out Bananas, Minion AND Range, Recruit Villagers

UWCOI 2020 (Rated for all)

Button Pairs, Find maximum in an Array

August Cook-Off 2020 Division 1

Polygon Relationship

August Lunchtime 2020 Division 1

Game on a Strip, Counting Graphs, Alien Invasion

June Lunchtime 2020 Division 1

Maximum AND, Gold Mining

January Cook-Off 2021 Division 1

Mex Subsequence

November Cook-Off 2020 Division 1

Flip the String, Chef and IPC Certificates, Hiring Workers

October Lunchtime 2020 Division 1

Chef Likes Good Sequences, Chef Is Just Throwing Random Words, Counting Spaghetti, Cute Chef Gift

Coders' Legacy (Rated for all)

Chef vs Doof, Doof on Cartesian, Doof fires Brackets

September Lunchtime 2020 Division 1

Robot Detector

February Lunchtime 2021 Division 1

Average Sorting, Sed Max, Independent Set

March Lunchtime 2021 Division 1

Uniform, Lunchtime

July Challenge 2021 Division 1 (Unrated)

XxOoRr, Chef vs Bharat, Optimal Denomination, Chef and Pairs, Madoka and Ladder Decomposition, Dakimakura Distribition, K Path Query

July Cook-Off 2021 Division 1

Beautiful Subsequence, Mod Equality, Hidden Colored Graph

July Lunchtime 2021 Division 1

Xor Separation, Longest Good Segment

August Cook-Off 2021 Division 1

Odd Array, Different String, Interactive Equivalency, Clear the Array

August Lunchtime 2021 Division 1

Bunny Hops, Just a Graph, Longest Spanning Substrings, Chef and Deque

September Cook-Off 2021 Division 1

Chef and Pairwise Distances, Half Sequence, Fake Swaps

SnackDown 2021 - Online Qualifiers

Lucky Number, Maximum Number Of Distinct Elements, Minimise Difference

CodeChef Starters 12 Division 1 (Unrated)

K - balanced string, Another Shortest Paths Problem, Maximum Points, The Minimum Game

September Lunchtime 2021 Division 1

Interesting Representation, Subsequence LCS, Alice vs Bob Faceoff

October Cook-Off 2021 Division 1

Can You Reach The End, Find the Modulus, Chef Up

October Lunchtime 2021 Division 1

Median Rearrangement, Tree Upshot

SnackDown 2021 - Online Round 1B

Insider Subsequences, Queens Placement , Largest Laddu, Help Nishant

SnackDown 2021 - Online Pre-Elimination

Non-Decreasing Subsequence of size K, Product Pain

SnackDown 2021 - Online Elimination Round (Rated for all)

Sorting Segments

November Lunchtime 2021 Division 1

Subarray Jumps

December Lunchtime 2021 Division 1

In-tree-active Node Coloring, Optimal Sorting, Romantic Reversals, Sleep Technique

Code Drive Division 1 (Unrated)

Again XOR problem, Maximum Factors Problem, Count Number of Peaks

SnackDown 2021 - Final Round Parallel Contest (Unrated)

Ones Guessing

Exun 2021-22 Division 1 (Unrated)

Sarthak and his Magic Grid, Vedant and his Hidden Array, Aujasvit and the Circle Game, Neil and his Binary Tree, Harshikaa and the Rain, Vishesh and his Hate for Even Numbers

January Cook-Off 2022 Division 1

Subsegment Divisibility , Merged LIS, Prime Graph, Erase All But One

February Cook-Off 2022 Division 1

Xor Becoming Uncanny, Perfect Permutation, PerMEXuation , Mango Market

February Long 2022 - II, Division 1 (Unrated)

Sequence GCD, Bitwise swaps, Xor Palindrome

July Lunchtime 2022 Division 1 (Rated)

Tree Interval Queries, Binary String Happiness, Consecutive XOR, Largest Family

August Lunchtime 2022 Division 1 (Rated)

Sort the Array, Tree Coloring, Subtract 12 Operation, MEX Permutation Difference

September Lunchtime 2022 Division 1 (Rated) (Based on EJOI)

Increasing Addition, Remove Numbers

Starters 69 Division 1 (Rated till 6-stars)

Make everything divisible by 3, Passing Through!, Distinct Sequence, Longest Subarray

Starters 74 Division 1 (Rated till 6-Stars)

Candies, Maximum Xor Sum, Distinct Values, Lcm hates Gcd, Medicine Strength, Minimal Inversions

Starters 75 Division 1 (Rated till 6-Stars)

Sum of range distinct queries, Chefs Favourite Function, Minimum Replacement, Equal Hamming Distance, Prefix Ones

February Cook-Off 2023 Division 1 (Rated)

Take Not Less, Alice Potter And Dumbledore Army

Starters 77 Division 1 (Rated till 5 Stars)

Concat Palindrome, Three Numbers

Starters 78 Division 1 (Rated till 6 stars)

MinAdd, Bitwise Equation, Balanced Suffix, Solve More Problems!, Divisible Subarray Counting

Starters 82 Division 1 (Rated till 6 stars)

Tree Game, Make Them Alike, Find eX, Good Permutations, Difference Matrix

Starters 85 Division 1 (Rated till 6 stars)

Crazy Bishops on Chessboard, Efficient PAN Linking, Tree Xor, GCD Queries, Bomb Blast, TripTastic

Starters 86 Division 1 (Rated for All)

Least Size, Minimum Operation, String Game , Largest Y

Starters 83 Division 1 (Rated)

Mex Segments, Construct String, Order by XOR, Saber Slays, Rotate to Minimum, Restoration

Starters 91 Division 1 (Rated till 6 Stars)

Cheapest Office

Starters 93 Division 1 (Rated for All)

Thank U, Next, NASA, Greedy, Motive

Starters 95 Division 1 (Rated till 6 Stars)

Partition and Maximize, Boxes, Transfusion Chain, Break This Array

Starters 98 Division 1 (Rated till 6 Stars)

3-Blast Palindrome, Build Towers, Ball Distribution, Sub-Array With Maximum Sum

Starters 100 Division 1 (Rated)

Prime Permutation, Stamps 100, Concussive Sequence, Ant

Starters 108 Division 1 (Rated till 6 Stars)

Palindromic Prime Numbers, Fair Distribution, Continuous Subarrays, Multiple of 9

Starters 112 Divison 1 (Rated till 6 Stars)

Cursed Indices, 3 Logicians Walk into a Bar, Yet Another Array Game, Permutation Construction

Starters 113 Division 1 (Rated)

Count Distinct Arrays, Maximise The Minimum, Minimise Maximum Subarray Sum, Make All Equal, Score Sum, Maximum Score

Starters 114 Division 1 (Rated till 6 Stars)

Game on Array, Chef and Tag, Rock-Paper-Scissors, Lexicographic Rook on a Graph

Starters 115 Division 1 (Rated)

Subtraction Sequence I, Greedy LIS Algorithm, Make All Zero

Starters 116 Divison 1 (Rated till 6-Stars)

Chef Product, Two Set Game, ORST , Permutation Sort, Exact Savings

Starters 119 Division 1 (Rated till 6-Stars)

K Odd Sum, Xorred, Unalike Gcd & Lcm

Starters 120 Division 1 (Rated till 6 Stars)

Find Permutation , Minimum Operations, Construct Permutation, Count Subarrays, Count Arrays

Starters 121 Division 1 (Rated till 6-Stars)

Frequal, Colourful Balls, Split And Maximize, Caesar Cipher Lite, Magic Palindrome

Starters 122 Division 1 (Rated till 6-Stars)

Arya In Grid, Transformation Cost

Starters 124 Division 1 (Rated till 5-Stars)

Swap and Unite, Make It One, How many arrays, It is a tree

Starters 125 Division 1 (Rated till 6-Stars)

Lazy Rescue, Binary Minimal

Starters 126 Division 1 (Rated till 6 Stars)

Tree Distance Set, Freedom, Uncommon Cycles, LCD, Triangular Swaps

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 150 (Rated till 6 stars)

Equal Pairs (Hard), Replacing Game

Starters 151 (rated till 5 stars)

Ball Game, Sequence Search, RGB Grid (Easy)

Starters 152 (Rated till 6 stars)

Alien Operation, Completion (Hard), Maximize Hamming Distance, Completion (Easy), Anti-Palindrome Queries

Starters 154 (Rated till 6 stars)

Tree Cut Xor, Count Winning Subarrays, GCD and XOR, Triangle Count (Hard), Triangle Count (Easy)

Starters 169 (Rated till 5 stars)

Tree Queries

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