Chetan Rao

• Username: 3★code_er7
• Country:  India
• Student/Professional:Student
• Institution:Chandigarh University Punjab, India
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2025 (Jul-Dec)2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 29

Current Ratings Graph Old Ratings Graph

1602 (-34)RatingProvisional
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Starters 115 Division 2 (Rated)(2024-01-03 22:30:02)

Global Rank:   1512

Cheated in:   

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(2024-01-03 22:30:02)

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1456 (+5)RatingProvisional
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Starters 61 Division 3 (Rated)(2022-12-20 00:00:00)

Global Rank:   2560

Cheated in:   

Ratings System Update

(2022-12-20 00:00:00)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

How the rating system works?

Learning Paths (0)

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Practice Paths (0)

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Contests (29)

May Lunchtime 2022 Division 4 (Rated)

Bucket and Water Flow , Apples and Oranges, How many unattempted problems, Problems in your to-do list

Starters 39 Division 4 (Rated)

Recent contest problems, My very 1st contest!, A or B, Chess Ratings

May Long Two 2022 Division 4 (Rated)

Practice makes us perfect, Score High, Total Prize Money, Degree of Polynomial

July Cook-Off 2022 Division 4 (Rated)

Enough Space, Chef Drinks Tea, High Accuracy

Starters 44 Division 4 (Rated)

Biryani classes, Air Hockey

June Long Two 2022 Division 4 (Rated)

Count the ACs, Make all equal using Pairs, Complementary Strand in a DNA, Fitness

Starters 45 Division 4 (Rated)

Chef and his Apps, Best of Two, Retrieve the Array, Adjacent Sum Parity, Change Row and Column Both

July Long One 2022 Division 4 (Rated)

Bidding, Journey of the Knight, Pass the Exam, Chef and Candies

Starters 46 Division 4 (Rated)

Sort the String, Counting Words, MATH1 Enrolment, Group Assignment

Starters 53 Division 4 (Rated)

Car Trip, Greater Average, Weights

Starters 54 Division 4 (Rated)

Number of Credits, Ticket Fine

September Long 2022 Division 4 (Rated)

Speed Limit Test, Bob at the Bank, Chef and Wire Frames, Good Pairs

Starters 56 Division 4 (Rated)

Nearest Exit, Chefland Games, Far Away

September Lunchtime 2022 Division 4 (Rated) (Based on EJOI)

Sleep deprivation, Flip the cards, Equalize AB, Stick Break

Starters 57 Division 4 (Rated)

Alice and Marks, Integers that sum to the same value, Non-Negative Product, Two Different Palindromes

Starters 58 Division 4 (Rated)

Break the elements, Ranklist Pages, Reach the Target, Remove Bad elements

Starters 59 Division 4 (Rated)

Chef and Happy String , Suspense String, Audible Range, Speciality

October Long 2022 Division 4 (Rated)

Podium Finish, Minimum Pizzas, Binary Substituition, Building Race, Single Operation Part 1, Single Operation Part 2

Starters 60 Division 4 (Rated)

Expert Setter, Yet Another Palindrome Problem, Tax in Chefland, Paper Cutting, Palindrome Flipping, Card Removal

Starters 61 Division 3 (Rated)

Minimise LCS, Different Consecutive Characters , Odd Sum Pair

Starters 70 Division 3 (Rated)

Cost of Groceries, Minimum distance between 1s, Prime Reversal, Frequency Array Retrieval

Starters 71 Division 3 (Rated)

Pet Store, Snapchat, Perfect Trio

Starters 72 Division 3 (Rated)

Indivisible, Apples and oranges, N Triplets

Starters 73 Division 3 (Rated)

Lucky Numbers, Append for OR

Starters 74 Division 3 (Rated)

Chef And Babla, Lcm hates Gcd, Odd Even Binary String

Starters 75 Division 3 (Rated)

Prefix Ones, Three Powers of Two, Two Ranges

January Long 2023 Division 3 (Rated)

Asymmetric Swaps, Symmetric Swaps, Minimize the Maximum, Array Halves, Far from origin

Starters 76 Division 3 (Rated)

Redistributing Chocolates, Make Array Odd, Zero String, Construct Array, 400M Race, Not Divisible

Starters 115 Division 2 (Rated)

Greedy LIS Algorithm, A PLUS B Remastered, Decorating Christmas Tree

Total Problems Solved: 141