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Programming and DSA

Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.

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Programming and DSA

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Programming and DSA

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Practice Compete Compiler
Home » Crayon_21
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Crayon_21

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  • 2★ridamagrawal
  •   India
  • Student
  • JSS Academy of Technical Education, Noida India
  • No Active Plan. View Details

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No. of Contests Participated: 83
1489 (-29)RatingProvisional
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Starters 219 (Rated)(2025-12-31 22:00:04)
Global Rank:   1951
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Learning Paths (4)

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Learn Advanced SQL

1%
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Build with Flask: Web Development for Beginners

2%
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Learn SQL

12%
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Learn C++

46%

Practice Paths (3)

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Javascript Projects for Beginners

54%
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1600 to 1800 difficulty problems

12%
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Level up from 1* to 2*

24%

Contests (83)

Starters 102 Division 4 (Rated)

Sports Section, Selling Insurance, Chef and Stocks

Starters 116 Division 4 (Rated)

Hattrick, ORST , Minimum Wage, Access Control

Starters 117 Division 4 (Rated)

Yearly Phone

Starters 123 Division 4 (Rated)

Maximise Adjacent Sum

Starters 124 Division 4 (Rated)

Binary Parity, Table Strength, Summer Time, Cricket Tournament

Starters 125 Division 4 (Rated)

Overspeeding, 50-50 Rule, Fake Certificate

Starters 129 Division 4 (Rated)

Football Training, Pep Bidding, Ballon d Or

Starters 130 Division 4 (Rated)

Alternating Binary String, Giant Wheel, Swapping Marks Digits

Starters 131 Division 4 (Rated)

Remaining Neighborhoods, K-Closeness, Gotta Catch Em All, Dice Deception

Starters 132 Division 3 (Rated)

Change Please

Starters 134 Division 4 (Rated)

Morning Run, Money Double, Rock Paper Scissors

Starters 136 Division 4 (Rated)

Sum of Modes, Who Makes P1, Even Sum Subarray, My First Geometry Problem

Starters 137 Division 3 (Rated)

Spell Splice

Starters 138 Division 3 (Rated)

Prefix Suffix Inequality, Heat Wave, Long Drive, Distinct Substring

Starters 139 Division 3 (Rated)

Maximum Distance Permutations, Distribute Cookies

Starters 140 Division 3 (Rated)

Make Permutation, Split Permutation, Trick Or Treat, Yoga Class

Starters 141 Division 3 (Rated)

Redundant Array, Nearly Equal

Starters 142 Division 3 (Rated)

Chef loves Pizza Chef loves halfs, Penalty Shoot-out, Array Removal, Number Hunt

Starters 143 Division 3 (Rated)

Non-Divisor Array, Binary Conversion, Maximum Coins

Starters 144 Division 3 (Rated)

Budget Allotment, Savings Account

Starters 145 Division 3 (Rated)

Gun Master, Make My Array Equal

Starters 146 Division 3 (Rated till 5 stars)

Bouncing Ball, Permutation Construction, Knockout tournament, No Winner

Starters 147 Division 2 (Rated till 5 stars)

Truth Teller And Liars 101, Independence Day 101, Non-Primes 101, Gold Coins 101

Starters 148 Division 3 (Rated)

Let Me Eat Cake!, FightBots

Starters 149 (Rated)

Magical World, Easy Subarray Sum, Maximise Sum, Chef Loves Beautiful Strings (Easy Version)

Starters 150 (Rated)

Find Multiset State, Equal Pairs (Easy)

Starters 151 (rated)

Convert string

Starters 152 (Rated)

Maximize Hamming Distance, Winning World Finals, Range Minimize

Starters 153 (Rated)

Butterfly, Another Game, Colorful Tree (Easy Version)

Starters 154 (Rated)

Add 1 or 2 Game

Starters 155 (Rated)

GCD to 1 (Easy), GCD to 1 (Hard)

Starters 156 (Rated)

Partition Score, Even Numbers Hate

Starters 157 (Rated)

Small, Smaller, Smallest, Unmedian, Not-too-far Replacement

Starters 158 (Rated)

Largest Subsequence

Starters 159 (Rated)

Super Hero, Random Nim, Chess Colouring, Elections

Starters 160 (Rated)

Palindrome Love, Buying Order (Easy), Equate S and T

Starters 161 (Rated)

Red-Blue Sort, Two Cards

Starters 162 (Rated)

Empty the String, Adjacent Sum Array, Permutation Mod K

Starters 163 (Rated)

Nice Array, Minimum Types, Lexio Swap

Starters 164 (Rated)

Construct Permutation, Swap and Flip

Starters 166 (Rated)

Costly Permutations, Chefland Library

Starters 167 (Rated)

Temperature Balance, Lottery Tickets, Delete Not Equal, Grid Construction (Even), Grid Construction (Odd)

Starters 168 (Rated)

No Two Alike, Binary Removals, Make Odd

Starters 169 (Rated)

Constant Subsequence, Hamming equivalent, Make K Most Frequent

Starters 170 (Rated)

Crazy Jumping Frogs, qUiRkY qUesTs (Easy), Monster Monster

Starters 171 (Rated)

Swish Game, White Wall, Volcanic Eruption

Starters 172 (Rated)

Transform String

Starters 173 (Rated upto < 2700)

Cool Subsequences, Time Penalty, Overwrite

Starters 174 (Rated)

Mystic Slimes, Deletion and Difference

Starters 175 (Rated)

Alternate It!, Make same

Starters 178 (Rated)

Big Difference, Placing 01 And 10

Starters 179 (Rated)

Lost in the Fest!!, Unlock The Safe, Can you reach

Starters 180 (Rated)

Shall we play a game, Array Operations, Huh, Easy

Starters 181 (Rated)

Flip Prefix, Find Outside Array

Starters 182 (Rated)

Bar Queue, MasterChef, Beautiful Garden, Palindromic Score

Starters 183 (Rated)

Larger Smaller, Max Triangle

Starters 184 (Rated)

One Down

Starters 185 (Rated)

GCD Summation, Creature Hunter

Starters 189 (Rated)

Nutrition Cost

Starters 190 (Rated)

Subsequence Sort, Light All, Min-Max Deletion, Parry It! (Easy)

Starters 191 (Rated)

Add 1 or 2, Add to get GCD, Permuted Greater than 2

Starters 192 (Rated)

Security Lines

Starters 193 (Rated)

Add Permutation, Check Odd Even Divisors, Count Odd Even Divisors

Starters 194 (Rated)

Mark All, Munchys Modulo, Chef Bakes Cake 3

Starters 196 (Rated)

Sugar Limit, Append Average

Starters 197 (Rated)

Good Ranking (Pair), All Odd Prefix Sums, Split

Starters 198 (Rated)

Currency Exchange, Minimize Maximum Mex

Starters 199 (Rated)

Perfect Ranges, Fence Colouring, Grid MEX, Subtract or Divide

Starters 200 (Rated)

Random NIM, Restrict Palindromes, Good Subsequence

Starters 201 (Rated)

Compare and Connect, Huge Grid (Easy Version), Mixing Liquids, Mark Points

Starters 202 (Rated)

Buying Flowers, If Only I Could Read, Min-Max Deque (Easy)

Starters 203 (Rated)

MEX on Ranges, Cab Rides

Starters 204 (Rated)

Drawing Chances

Starters 205 (Rated)

Unreachable, Mirror Jump, Triplet Maximization

Starters 207 (Rated)

Make Subarray

Starters 208 (Rated)

Sabotage, Alternate Jumps

Weekend Dev Challenge 17: GenAI Projects using LLM

Resume Reviewer Project, Part 2 - Computing Resume-Job Similarity

Weekend Dev Challenge 19: Full Stack Projects using MERN

URL Shortener Project, Enhancing the React UI to Use Backend APIs, Building the Express Backend with URL Redirection

Starters 210 (Rated)

Chocolate Eating, Profits, First Element Counting

Starters 212 (Rated)

Exit Door, Signal

Starters 214 (Unrated)

Crazy Permutations, Chef and Close Friends, Zero Permutation Score

Starters 216 (Rated)

Scoring, Best Seats

Weekend Dev Challenge 26: Frontend Essentials - HTML,CSS,JS

ToastyWeather Project

Starters 217 (Rated)

Make An AP, Playing with Toys, Add to make Positive, Add 1 or 3

Starters 218 (Rated)

Deleting Array Again, Counting Optimal Arrays, Coloured Balloons, Stop The Count

Starters 219 (Rated)

Pizza Comparision, Ones and Zeroes I

Weekend Dev Challenge 27: SQL Projects

Challenge 1 - Active Employees of Chef Corp, Challenge 2 - Chef Corp Department Summary

Total Problems Solved: 573

1489
(Div 3)
★★
CodeChef Rating (Highest Rating 1813)
  • 28718 Global Rank
  • 26370 Country Rank

Skill tests

93%

SQL Skill Test

Attempted on June 2025
View skill tests

Badges

Contest Contender - Gold Badge

Contest Contender - Gold Badge

Received for participating in 50 Contests

Problem Solver - Gold Badge

Problem Solver - Gold Badge

Received for solving 500 Problems

Daily Streak - Silver Badge

Daily Streak - Silver Badge

Received for maintaining a streak of 25 days

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