Rahul Khanna
- 2★r1ahulkhanna
India- Student
- Maharshi Dayanand University, Rohtak Haryana, India
- View Details
Submissions Heat Map
Rating Graph
Ratings System Update
(2026-04-22 22:00:04)Ratings System Update
(2022-12-20 00:00:00)Learning Paths (11)
Learn Spring Boot for Back-end development
Learn Python for project building
Learn Go
Learn SQL
Learn JavaScript
Java Problem Solving
Learn C++
Dynamic programming
Learn Java (Older version)
Logic Building in C#
Learn C#
Practice Paths (6)
C++ Projects for Beginners
Number theory
1400 to 1600 difficulty problems
1000 to 1400 difficulty problems
Greedy Algorithms
Linked Lists
Contests (32)
Starters 65 Division 4 (Rated)
Candies, Parity, Hackerman
Starters 67 Division 4 (Rated)
Minimum Number of Ones, Counting Problem, Tour of King
Starters 68 Division 4 (Rated)
Expense List, Bull or Bear, Make AP, Make Money
Starters 69 Division 3 (Rated)
Akash and Dinner, Convert to permutation
Starters 70 Division 4 (Rated)
Spice Level, Prime Reversal, Minimum distance between 1s, Cost of Groceries, Kitchen Timings
December Long 2022 Division 4 (Rated)
Divisible by A_i, Gcd of Subarrays, Good Investment or Not, Divisible by K, Reach fast, Maximise XOR
Starters 72 Division 4 (Rated)
Sum it, N Triplets, Indivisible, Apples and oranges
Starters 73 Division 4 (Rated)
Chef Plays Ludo, Multivitamin Tablets, Lucky Numbers, Append for OR
Starters 74 Division 4 (Rated)
Facebook, Mana Points, Chef And Babla, Odd Even Binary String
Starters 76 Division 3 (Rated)
Zero String, Not Divisible, 400M Race, Construct Array, Make Array Odd, Redistributing Chocolates
February Cook-Off 2023 Division 3 (Rated)
Take Not Less, Bi_lindrome!, Permutation and Modulus, Netflix
Starters 80 Division 3 (Rated)
Prefix Permutation, Single-use Attack, Running Comparison, Equal Elements
Starters 82 Division 3 (Rated)
Reach Home, MIN To MAX
Starters 86 Division 3 (Rated)
Cricket Match, Chef and Battery
Starters 83 Division 3 (Rated)
Chef Eren, Construct String
Starters 88 Division 3 (Rated)
Largest and Second Largest
Starters 92 Division 3 (Rated)
Dotify Playlist, Water Filling
Starters 93 Division 3 (Rated)
7 Rings, Problem
Starters 98 Division 3 (Rated)
FIND A and B
Starters 106 Division 3 (Rated)
Chef Fantasy 11, Playing with OR
Starters 111 Divison 3 (Rated)
Beautiful Strings, Exams, Reach Codetown
Starters 112 Division 3 (Rated)
Fair Share Settlement, Max Nutrition
Starters 115 Division 3 (Rated)
A PLUS B Remastered, Chocolate Distribution
Starters 117 Division 4 (Rated)
Not Prime Permutation, Weapon Choice, Spell Shortening, Yearly Phone
Starters 166 (Rated)
Christmas Gifts, Merry Christmas!
Starters 182 (Rated)
IPL, Bar Queue, Beautiful Garden, Palindromic Score
Starters 223 (Unrated)
Cashback
Starters 229 (Rated)
Vacation Excitement, Sequential Clamp, All Zero
Starters 231 (Rated)
Double Discount, Imperfect Numbers, Recurrence Reachability, Target Temperature
Starters 234 (Rated)
Binary Construction, Good Array 1 , Cooler, Non-Negative Sum
Starters 235 (Rated)
Balanced Positions in a Permutation, Sorted Groups, MEX Spectrum, Recover Palindrome
Monday Munch - DSA Challenge 34
Print Pattern, Frequency of elements using Hashing, Rating people