Nishank Suresh

August Challenge 2016

Chef and Circle Run, Chef and Chocolate, Chef and Round Run

September Challenge 2016

Chef and digits of a number, Faded Palindromes, Chef and calculation

October Challenge 2016

Chef and Keyboard, Fenwick Iterations, Chef and Three Dogs

November Challenge 2016

Count Permutations, Chef and squares, Task for Alexey

December Challenge 2016

Train Partner, Kth Max Subarray, Our Base is Under Attack

August Cook-Off 2016

Tweedle-Dee and Tweedle-Dum

September Cook-Off 2016

Lazy Jem, The Lost Arithmetic Sequences

October Cook-Off 2016

Sherlock and the Ugly Flower, Watson asks Does Permutation Exist, ChefWatson uses Social Network

December Cook-Off 2016

Chef and Subset

August Lunchtime 2016

Studying Alphabet

September Lunchtime 2016

Chef and Inequality

October Lunchtime 2016

The Largest Bouquet

November Lunchtime 2016

Chef and his Students

December Lunchtime 2016

Superheroes and villains

January Challenge 2017

Capital Movement, Cats and Dogs, Reservior, Tourists in Mancunia

February Challenge 2017

Eugene and big number, Chef and Triangles, Chef and his Best Friend, Chef and His Apartment Dues, Most Frequent Element, Gerrymander

March Challenge 2017

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

January Lunchtime 2017

Nothing in Common

April Challenge 2017

Chef and Divisor Tree, Stable market, Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes

May Challenge 2017

Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers

June Challenge 2017

Chef and Prime Queries, A Good Set, 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

August Long Challenge 2017

Chef and Rainbow Array, Chef And Fibonacci Array, Chef and Mover, Palindromic Game, Greedy Candidates, Strings and Graphs

September Challenge 2017

Sereja and Commands, Sereja and Functions (Challenge), Chef and Pick Digit, Minimum Good Permutation, Fill The Matrix, Little Chef and Sums

October Challenge 2017

Chef and Magic Arrays, Chef and a great voluntary Program, Chef and Cycled Cycles, 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, Chef and Subarray Queries, Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes

December Challenge 2017

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

May Cook-Off 2017

La Liga

June Cook-Off 2017

Ada and crayons, SnackUp

July Cook-Off 2017

Chang and Bitwise OR, Chang and the Perfect Function

October Cook-Off 2017

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

May Lunchtime 2017

Prefix Inversions

June Lunchtime 2017

Maximum Unique Segment, Two Numbers

October Lunchtime 2017

Buggy Calculator, Maximum Number

November Lunchtime 2017

Smart Strategy

January Challenge 2018

(Challenge) Chef and Palindromes, K-Concatenation, Maximum Score, Rectangle, String Merging, Partition the numbers

February Challenge 2018

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

International Coding League (Rated)

Matrix Game, Stingy Strings, Maze Love

May Cook-off 2018 Division 2

Difficult Choice, Best Cake Ever, Secret Recipe

September Mega Cook-Off 2018 Division 1

Make a Permutation

October Mega Cook-Off 2018 Division 1

Binary Nim 2, Pumping Water

April Challenge 2018 Division 1

Chef and Array (Challenge), Cutting Plants, Weight of Numbers, Highway Crossing, Chef and Same Old Recurrence, Count Good Prefixes, Average of Pairs, Workers, Chef and Same Old Recurrence 2

May Challenge 2018 Division 2

S-T Mincut, Mighty Friend, Change the Signs, Minimum Deletions, Xor Again, Not a Convex Hull (Challenge), Fake Binary Search, Dibs on Fibs

July Challenge 2018 Division 1

Reach Equilibrium, Chef and War with Taran (Challenge), No Minimum No Maximum, Gears, No Strings Attached

September Challenge 2018 Division 1

Table Game, Bad Shuffle

June Lunchtime 2018 Division 1

Summary Power

September Lunchtime 2018 Division 1

Chef Restaurant

October Lunchtime 2018 Division 1

Coloring the Grid, Weird Question

Insomnia 2018 (Rated)

Split Sums, Strange Swaps

ProCon 2018 (Rated for all)

The Great Run, Kill them with your success, Awkward Pairs

December Lunchtime 2018 Division 1

Choosing from Buckets, Age Calculator

March Challenge 2019 Division 1

Chef and Soccer, Cheating on Queue, Yet Again a Subarray Problem

March Cook-Off 2019 Division 1

XOR N-bonacci Sequence, Markers and Caps

May Cook-Off 2019 Division 1

Misha and Nice Sets

September Challenge 2019 Division 1

Biladerim Icin, Fuzzy Linear Combinations, Expected GCD, Doofish Set, Chef Designed a Network

September Mega Cook-Off 2019 Division 1

Angry Grandfather

October Mega Cook-Off 2019 Division 1

Hidden Sequence, D-Or

November Lunchtime 2019 Division 1

Planting Trees, Washing Windows, Perfection

International Coding League 2019 (Rated for Division 2)

FlatLand

January Challenge 2020 Division 1

OWCA Files

April Challenge 2020 Division 1

Strange Number, Squared Subsequences, Perfect Power Divisors, Ready Bitwise, Factor Tree, Leaked Answers (Challenge)

March Cook-Off 2020 Division 1

Mysterious Sequence, Maximize Letter Beauty, Escape the Tree

Biteration #2 (Rated for Division 2)

A - Books, B - Candy Love, C - Chef and Maths

Exun Programming Prelims 2019 (Rated for all)

Weird Modulo Problem , Tennis Tournament, Chipped Tree, Yet Another Partition Problem

ENIGMA - PLINTH'20 LNMIIT (Rated for all)

Corruption in Freedonia, Gru is Handing Out Bananas, Minion AND Range, Recruit Villagers

Coders' Legacy (Rated for all)

Chef vs Doof, Doof on Cartesian, Doof fires Brackets, Jeremy gets a gift

International Coding Marathon 2021 Division 1 (Unrated)

Suffix Sort, Infinite polygons, Stack Of Rectangles, Team Divisions, Special String, Lucky Boundaries

May Challenge 2021 Division 1 (Unrated)

Valid Paths, Tree House, An Interesting Sequence, King Killing, Xor Equality, Tic Tac Toe, Modular Equation, Golf, Solubility

June Challenge 2021 Division 1 (Unrated)

Shortest Route

CodeChef Starters 6 Division 1 (Unrated)

Joker and Batman, Chefs Homework Dilemma, Even tuples, Palindromic number, Three Dices, Cricket Ranking

August Challenge 2021 Division 1 (Unrated)

Special Triplets, Array Filling, Geometry 1, Chef and Bulb Invention, Charge Scheduling, Chef and Digits of Large Numbers, Fat Hut, Problem Difficulties, Olympics Ranking

August Lunchtime 2021 Division 1

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

CodeChef Starters 10 Division 1 (Unrated)

Tree Distance Sum

SnackDown 2021 - Online Qualifiers

Maximum Number Of Distinct Elements

October Challenge 2021 Division 1 (Unrated)

Yet another MEX problem, Characteristic Polynomial Verification

SnackDown 2021 - Online Round 1A

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

SnackDown 2021 - Online Pre-Elimination

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

SnackDown 2021 - Online Elimination Round (Rated for all)

Graduate Work Matters, Sorting Segments

SnackDown 2021 - Final Round

Ones Guessing

December Cook-Off 2021 Division 1

Binary String Game, Destructive Nim, RGB Construction, Break the Balance

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, Sarthak and his Set of Primes

January Cook-Off 2022 Division 1

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

CodeChef Starters 25 Division 1 (Unrated)

Building Towers, Equal MEX, Hidden Permutation, Count Arrays, K Distinct Array

CodeChef Starters 29 Division 1 (Unrated)

Max Heat

CodeChef Starters 30 Division 1 (Unrated)

Maximizing LIS

CodeChef Starters 32 Division 1 (Unrated)

Maximize the Minimum, LR Shirts, Finding Shoes, Training Plans, Flip Sorting, Avoid Alternating

April Long One 2022 Division 1 (Unrated)

Yet Another Mex Problem, Dazzling AXNODR Challenge , Bullets and Enemies, Min Max Equality, Pairwise Xors

June Long One 2022 Division 1 (Unrated)

Full Path Eraser, Expected move, Reduce to zero, Add By Permutation, Divisible by i , Possible GCD

June Lunchtime 2022 Division 1 (Rated)

The Lost Array, Max Shift After XOR, XOR Times 2 Is Sum, Minimum Xor On Segment

Problems Authored (224)

Problems Tested (29)

Editorials Contributed (632)