Khem Singh
- khem_404
India- Student
- National Institute of Technology, Hamirpur
- No Active Plan. View Details
Submissions Heat Map
Learning Paths (0)
Practice Paths (1)
Contests (76)
October Challenge 2020 Division 2
Positive AND, Covid Run, Chef and Easy Queries
November Challenge 2020 Division 2
Restore Sequence, Ada and Dishes
January Challenge 2021 Division 2
Fair Elections, Chef and Division 3, Encoded String
December Challenge 2020 Division 2
Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution
December Cook-Off 2020 Division 2
Catch the Thief, Minimum Attendance Requirement
December Lunchtime 2020 Division 2 (Unrated)
Sed Sequences, One Zero Swaps
October Cook-Off 2020 Division 2
Split the Str Ing
November Cook-Off 2020 Division 2
Chef and IPC Certificates
October Lunchtime 2020 Division 2
AND Plus OR
November Lunchtime 2020 Division 2
Gasoline Introduction
UWCOI 2021 (Rated for all)
Array Swaps, Hidden Numbers
Byterace IIT Patna Division 2 (Rated)
The Begining Era Of Cyberverse, Cybalphabit
January Lunchtime 2021 Division 3 (Unrated)
Ashishgup and Interviews, Pair Me, Even Differences, Even Sum
February Challenge 2021 Division 3
Chef and Meetings, Maximise Function, Highest Divisor
March Cook-Off 2021 Division 3
Pawri Meme, Weight Balance
February Lunchtime 2021 Division 3
Daanish and Problems, Smallest Possible Whole Number, Coprime Range
CodeChef Div 3 Rated Contest 2021 Division 3
Body Mass Index, Total Score
March Challenge 2021 Division 2
Chef and Groups, No Time to Wait
March Lunchtime 2021 Division 3
Turn It, Motivation, Make the Sum Even
March CodeChef Starters 2021 Division 3 (Rated)
College Life 5, Server Trouble, Nobel Prize, Possible Victory
April Challenge 2021 Division 2
Valid Pair, World Record, Strong Language
International Coding Marathon 2021 Division 2 (Rated)
Suffix Sort, Lucky Boundaries
April Cook-Off 2021 Division 2
Passing Marks, Chocolate Monger
April Lunchtime 2021 Division 2
Chef in Heaven , Bench Press, Equinox Strings, Array Rotation, Coldplay
SPYBITS IIT BHU Division 2 (Rated)
B - Valentine Couples, A - Save Water Save Life
May Cook-Off 2021 Division 2
The Last Problem
May Lunchtime 2021 Division 2
Charges, Tom And Jerry 1
May CodeChef Starters 2021 Division 2 (Unrated)
Plagiarism, Lazy Chef
May Challenge 2021 Division 2 (Rated)
Xor Equality, Tic Tac Toe, Golf, Solubility
June Challenge 2021 Division 3 (Rated)
Shortest Route, Bitwise Tuples, Bella ciao, Summer Heat
June Cook-Off 2021 Division 2
The Wave
June Lunchtime 2021 Division 2
False Number
June CodeChef Starters 2021 Division 3 (Rated)
Total Correct Submissions, Chess Match, Cyclic Quadrilateral
July Challenge 2021 Division 3 (Rated)
XxOoRr, Optimal Denomination, Maximum Production, Relativity
July Cook-Off 2021 Division 2
XOR-ORED, Mod Equality
July Lunchtime 2021 Division 2
Beautiful Pairs, Array Rotation Returns
CodeChef Starters 6 Division 3 (Rated)
Joker and Batman, Even tuples, Three Dices, Cricket Ranking
August Challenge 2021 Division 2 (Unrated)
Problem Difficulties, Olympics Ranking
August Cook-Off 2021 Division 2
Different String, Chef and Closure, Equal Difference, Clear the Array
August Lunchtime 2021 Division 2
K-th Maximum, Crossing Blocks, Just a Graph
CodeChef Starters 10 Division 2 (Rated)
Magical Flips, Maximise the Subsequence Sum, Remove One Element
September Challenge 2021 Division 2 (Unrated)
Shuffling Parities, Airline Restrictions, Travel Pass
September Cook-Off 2021 Division 2
Zebra Crossing, Fake Swaps, Adjacency Hatred
SnackDown 2021 - Online Qualifiers
Lucky Number, Maximum Number Of Distinct Elements
CodeChef Starters 11 Division 2 (Rated)
The Grid Fill Problem, Obtain the Sum
CodeChef Starters 12 Division 2 (Unrated)
Make it Divisible
CodeChef Starters 13 Division 2 (Rated)
Add and Divide, Chef in Vaccination Queue, Maximum Light Up, Magical Doors
October Challenge 2021 Division 2 (Unrated)
Longest AND Subarray, MEX-OR
September Lunchtime 2021 Division 2
Balanced and Unique Arrays, Alice vs Bob Faceoff, Yet another SOD problem
October Cook-Off 2021 Division 2
Can You Reach The End, Odd Sum, 01 Subsequence
October Lunchtime 2021 Division 2
Chef and Water Car, Exactly N plus 1 Values
SnackDown 2021 - Online Round 1A
Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM
November Challenge 2021 Division 2 (Unrated)
Weird Palindrome Making, Equal Coins
November Cook-Off 2021 Division 2
Missing Sums, Make it Divisible
CodeChef Starters 17 Division 2 (Rated)
Binary Inversion, GCD of Prefixes, String Game, New Piece
C.O.D.E.R.S Division 2 (Rated)
The One On The Last Night, The One with All the Candy, The One with Ross Wedding
FizzBuzz Division 2 (Rated)
Magical Planks, Clean The Sequence, Substring Minimum Function, Can_Reach
November Lunchtime 2021 Division 2
Expected Weight, Strange Minimization, Rapid Re-Orderings
December Challenge 2021 Division 2 (Unrated)
List of Lists
SnackDown 2021 - Elimination Parallel (Rated for Div 2)
Yet another subarray problem, Remove Element
December Cook-Off 2021 Division 2
Median Minimization, Musical Chairs
December Lunchtime 2021 Division 2
Maximum Trio, Optimal Sorting, Romantic Reversals
CodeChef Starters 22 Division 2 (Rated)
An Interesting Sequence, Even Subset Xor, Equal LIS
Infinity 2k21 Division 2 (Rated)
Marbles
January Long 2022 - I, Division 2 (Unrated)
Keplers Law, Prime in a binary string, Covid Spread
January Long 2022 - II, Division 2 (Unrated)
Crying Colours
January Cook-Off 2022 Division 2
Palindromes Not Allowed, Mean Maximization, Subsegment Divisibility , Merged LIS
January Lunchtime 2022 Division 2
Subarray permutations, Prefix Zeros, Permutation XOR Sum
February Long 2022 - I, Division 2 (Unrated)
Binary Base Basics, N Queens Puzzle Solved !
February Cook-Off 2022 Division 2
Perfect Permutation, PerMEXuation , Prefix Permutation
February Long 2022 - II, Division 2 (Unrated)
Avoid Fixed Points, Xor Palindrome
CodeChef Starters 26 Division 2 (Unrated)
Careless Chef, Control the Pollution
February Lunchtime 2022 Division 2
Four Equidistant Points on a Grid, Parallel Processing, Magnet Sort
CodeChef Starters 30 Division 2 (Rated)
Minimum Coloring, Maximizing LIS, Gift Shop and Coupon, Balanced Reversals
April Cook-Off 2022 Division 2
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, Secret Machine Mania
Starters 35 Division 2 (Rated)
Dark Light, Admins and Shopping
Starters 36 Division 2 (Rated)
Buying Sweets, Reduce to 1, Presents for Cheffina
May Cook-Off 2022 Division 2 (Rated)
Different Subarrays Rearrange, Doubled Distances
Starters 39 Division 2 (Rated)
Compress the Video, Crazy Substrings, Minimize Blocked Roads, Closest Vowels, Even Subarray XOR
May Long Two 2022 Division 2 (Unrated)
Xor Palindrome, Subarrays with length, Make them Zero
Starters 40 Division 2 (Unrated)
Infinity Staircase, Good Pairs
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
Starters 42 Division 2 (Rated)
Maximise Set Bits , Minimum or Maximum, Divisible by 3
Starters 44 Division 2 (Rated)
Palindromes Not Allowed, Atleast and Atmost, Triple Xor, Dense Bracket Sequence
Starters 43 Division 2 (Rated)
Make them Equal, Distinct Palindrome
June Lunchtime 2022 Division 2 (Rated)
Zero Ones Equal One Zeros, The Lost Array, Equal by XORing
Starters 45 Division 2 (Rated)
Even Equal Odd, Xor and Multiply, KBG and GN-Theory, Retrieve the Array, Adjacent Sum Parity