S Sudarsan

July Challenge 2015

Bread, Na2a and lucky stone, Chef and Cube

August Challenge 2015

Gravity Guy, Cooking Machine

September Challenge 2015

Count Steps in Matrix

October Challenge 2015

Time measure, Count Subarrays, Who dares to be a millionaire

July Lunchtime 2015

Greedy puppy

September Lunchtime 2015

Sum of palindromic numbers

February Challenge 2016

Chef-Detective

March Challenge 2016

Palindromic substrings, maximize the sum, Chef And Special Dishes

April Challenge 2016

Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring

May Challenge 2016

Sereja and GCD 2, Chef and math, Chef and Balls, Forest Gathering, Chef and Big Soccer, Laddu

June Challenge 2016

Chef And The Hiring Event, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Devu and an Array

July Challenge 2016

Andrash and Stipendium, Chef and Segments, Chef and Tetris, Chef and Robots Competition, Chefland and Electricity, Scheduling jobs on a cluster

August Challenge 2016

Chef and His Garden, Fighting Ebola, Chef and Circle Run, Chef and Chocolate, Chef and Round Run

September Challenge 2016

Chef and Friends, Dividing Machine, Chef and Matrix Division, Chef and digits of a number, Faded Palindromes, JosephLand, Chef and calculation

October Challenge 2016

Sereja and Progressions, Sereja and Stones, Chef and Keyboard, Big Queries, Fenwick Iterations, Chef and Three Dogs, Chef and Two String

November Challenge 2016

Count Permutations, Friends Meeting, Urban Development, Gift and Chef, Chef and squares, Sereja and Ways in the Cube, Task for Alexey

December Challenge 2016

Train Partner, Kth Max Subarray, Kirito in labyrinth, Edit Distance Revisited, Roses for Alexey, Our Base is Under Attack

June Cook-Off 2016

Sticks, Right Triangle

November Cook-Off 2016

Sebi and the highway

December Cook-Off 2016

Chef and Subset

February Lunchtime 2016

Chef and Socks

March Lunchtime 2016

Simple Statistics

January Challenge 2017

Capital Movement, Cats and Dogs, Sereja and Circles, Chef and Circle, Fantastic Four, Digits Cannot Separate, Reservior, Tourists in Mancunia

February Challenge 2017

Chef and Yoda, Eugene and big number, Primitive Queries, Interval Game, Chef and Triangles, Chef and his Best Friend, Chef and His Apartment Dues, Most Frequent Element, Gerrymander, Alice and her garden

March Challenge 2017

Cooking Schedule, Xenny and Alternating Tasks, Pishty and birthday, Bear and Extra Number, (CH) Bear and Sorted Rows, Bandwidth of a matrix

January Lunchtime 2017

Sealing up, Nothing in Common

April Challenge 2017

Chef and Digits, (CH) Serejs and Billiards, Bear and Random Grid, Chef and Divisor Tree, Stable market, Heavy-Light Decomposition, Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes

May Challenge 2017

Chef and Sub Array , Long Sandwich , Gotham PD, Chef and his daily routine, Courses in an university, Blocked websites, Median of adjacent maximum numbers, Chef and Subsequences, Chef and Battleship

June Challenge 2017

Chef and Prime Queries, Saboteur (Challenge), Euler Sum, A Good Set, Cloning, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets

July Challenge 2017

Chef and Sign Sequences, Pishty and tree, Tree Expectancy, Whats in the Name, Servers (Challenge), Calculator , IPC Trainers, Two Coins

August Long Challenge 2017

Chef and Rainbow Array, Chef And Fibonacci Array, Chef and Mover, Hill Jumping, Palindromic Game, Mathison and the Data Warehouse (Challenge), Greedy Candidates, Strings and Graphs

September Challenge 2017

Sereja and Commands, Sereja and Functions (Challenge), Chef and Pick Digit, Minimum Good Permutation, Weasel does Xor on Tree, Fill The Matrix, Little Chef and Sums

October Challenge 2017

Chef and Magic Arrays, Chef and a great voluntary Program, Chef and Cycled Cycles, Shooting on the array, Max Mex, Counter Test For CHEFSUM, A Balanced Contest, (Challenge) Connecting computers

November Challenge 2017

Chef and Intersection Line, Product on the segment by modulo , Chef Hates Palindromes, Polynomials, Chef and Subarray Queries, Chef goes Left Right Left, Lovers Gift, Periodic Palindrome Construction, Villages and Tribes

December Challenge 2017

Chef and Direction, Chef and Universe, Total Diamonds, Santa Delivering Problem, Chef And his Cake, Chef And Easy Xor Queries, Penalty Shoot-out, Red and blue points, Chef and Hamming Distance of arrays

April Cook-Off 2017

Bear and Candies 123, Bear and AB

May Cook-Off 2017

La Liga, Balanced Array

June Cook-Off 2017

Ada and crayons, SnackUp

July Cook-Off 2017

Chang and Bitwise OR, Chang and the Perfect Function, Chang and Perfect Quadruples

August Cook-Off 2017

Matrix and Chef, Real obtuse, From heaven to earth

September Cook-Off 2017

Infinite OR Game, Statistics Construction, Subsequence Equality

October Cook-Off 2017

Chef and Counting Test, Chef and Employment Test, Chef and Weird Queries

November Cook-Off 2017

Skiing, Online Chess, Random Pair

December Cook-Off 2017

Beautiful Array, Football Match

May Lunchtime 2017

Prefix Inversions

June Lunchtime 2017

Maximum Unique Segment, Two Numbers

July Lunchtime 2017

Find the Maximum Value, Good Pairs

August Lunchtime 2017

Mathison and the Dynamo shuffle, Mathison and pangrams

September Lunchtime 2017

Chef and Dice, Chef and Cook-Off Contests

October Lunchtime 2017

Buggy Calculator, Maximum Number

November Lunchtime 2017

Smart Strategy, L-R queries

December Lunchtime 2017

Days in Month, Strange Function, Too Much Sweetness

January Challenge 2018

(Challenge) Chef and Palindromes, Killing Monsters, A humongous Query, Killjee and k-th letter , K-Concatenation, Maximum Score, Rectangle, String Merging, Partition the numbers

January Cook-Off 2018

Multiple of 3, Survive in ChocoLand

January Lunchtime 2018

Chef and Game with Sequence, Chef and Escaping from the Labyrinth

February Challenge 2018

Broken Clock, Chef And His Characters, Chef And The Patents, Chef and odd queries, Points Inside A Polygon, Car-pal Tunnel, (Challenge) Biased Committee, Permutation and Palindrome

February Cook-Off 2018

Chef and Cook-Off, Chef and Tuples, Chef and Line

February Lunchtime 2018

Prefix borders, Game with numbers, Jumping in the hills

March Challenge 2018 DIV 1

Pishty and Triangles, Chef and Easy Problem, Chef and Gcd Queries, Mix the Colors, Minions and Voting, Embedding a Tree (Challenge)

March Cook-off 2018 Division 1

Chef Goes to the Cinema, Chef Restores a Matrix

April Cook-off 2018 Division 1

Run Direction, Binary Nim

May Cook-off 2018 Division 1

Best Cake Ever

March Lunchtime 2018 Division 1 (Unrated)

Partitions, Chef and Friends, Three Integers, Magic Elements

April Lunchtime 2018 Division 1

The hardest gcd problem, Triple-tree decomposition, Fast forward travelling

May Lunchtime 2018 Division 1

Count Substrings, Shifted Palindrome, Weak in the Middle, Maximum Plus

April Challenge 2018 Division 1

Chef and Array (Challenge), Vaibhav and Ministers, Chef at the Food Fair, Cutting Plants, Highway Crossing, Chef and Same Old Recurrence, Count Good Prefixes, Chef and Same Old Recurrence 2

May Challenge 2018 Division 1

S-T Mincut, Change the Signs, Not a Convex Hull (Challenge), Fake Binary Search, Dibs on Fibs

June Challenge 2018 Division 1

Two Flowers, Vision, Ways to Work, Archi and Tree

July Challenge 2018 Division 1

Pizza Delivery, Tom and Jerry, Reach Equilibrium, Chef and War with Taran (Challenge), Subway Ride, No Minimum No Maximum, Gears

September Challenge 2018 Division 1

AND Square Subsegments, Selinas the Chefs Falling on the Tree, Sasha and Photos, Chef and Condition Zero (Challenge), Table Game, Bad Shuffle

December Challenge 2018 Division 1

(Challenge) Delete DAG, Colorblind Feast, Max and Electrical Panel, Directing Edges, Chef and Interactive XOR

November Challenge 2018 Division 1

Appy Loves One, Good Median, Chef, Primes and Trees (Challenge), Magician versus Chef 2, Binary Strings

October Challenge 2018 Division 1

Appy and Balloons , Beautiful Bricks, Minimize Digitsum, Chef and Surprise Chessboard, Coprime Components, Distinct Rows in Submatrices

LoC April 2018 (Rated for Division 2)

Cricket Score, Bob and Pallindromes

ProCon 2018 (Rated for all)

The Great Run, Kill them with your success, Awkward Pairs, Algebra Score, Good Speech

Encoder (Rated for Division 2)

Knight Chess, Country Tour, Second Largest Element, Old Farmer, Paint the Wall

January Challenge 2019 Division 1

Yet Another Problem About Sequences, Different Neighbours, Partition the Graph, Distinct Pairs, Party, (Challenge) Chef and Matching Game, A Pizza Slice

March Challenge 2019 Division 1

Chef and Soccer, Cheating on Queue, Perfect Tree Problem, Treasure Hunt, Yet Again a Subarray Problem, Matchable Permutations, (Challenge) Interleaving Strings

May Challenge 2019 Division 1

(Challenge) Chef Exchange, Ada Rooks 2, Where to Build the Roads

January Challenge 2020 Division 1

Chef and Dynamo, Doraemon, Doofish Matrix, Chefina and Prefix Suffix Sums, English, Army of Me, Chefland Army, (Challenge) Building Anthills

June Challenge 2020 Division 1

The Tom and Jerry Game!, Operations on a Tuple, The Delicious Cake, Convenient Airports, Guessing Game, Covid Sampling (Challenge), Danya and Different Values

SnackDown 2021 - Online Qualifiers

Prefix as a Substring 2, Lucky Number, Maximum Number Of Distinct Elements, Minimise Difference

October Challenge 2021 Division 1 (Unrated)

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

SnackDown 2021 - Online Round 1A

Yet Another Flipping Problem, Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM

SnackDown 2021 - Online Round 1B

Queens Placement , Largest Laddu, Help Nishant

SnackDown 2021 - Online Pre-Elimination

Non-Decreasing Subsequence of size K, Product Pain, Guests like slippers

SnackDown 2021 - Online Elimination Round (Rated for all)

Graduate Work Matters, Sorting Segments

Problems Authored (5)

Problems Tested (0)

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Editorials Contributed (0)

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