Ivan Zakharov

• Username: 5★ivanz
• Country:  Russia
• Student/Professional:Student
• Institution:Higher School of Economics
• 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: 13

Current Ratings Graph Old Ratings Graph

2119 (-47)RatingProvisional
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Starters 125 Division 1 (Rated till 6-Stars)(2024-03-13 22:00:00)

Global Rank:   171

Cheated in:   

Ratings System Update

(2024-03-13 22:00:00)

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2166 (+0)RatingProvisional
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September Lunchtime 2022 Division 1 (Rated) (Based on EJOI)(2022-12-20 00:00:00)

Global Rank:   139

Cheated in:   

Ratings System Update

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

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Learning Paths (0)

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Contests (13)

August Challenge 2021 Division 3 (Rated)

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

August Cook-Off 2021 Division 2

Odd Array, Different String, Chef and Closure, Equal Difference, Clear the Array

CodeChef Starters 8 Division 3 (Rated)

Closest Power, Square Function, Three Points, Cinema Ticketing Queue, Javelin Qualification, Penalty Shots

September Challenge 2021 Division 1 (Unrated)

Travel Pass, Airline Restrictions, Shuffling Parities, XOR Equal, 2-D Point Meeting

SnackDown 2021 - Online Qualifiers

Lucky Number, Maximum Number Of Distinct Elements, Minimise Difference

October Lunchtime 2021 Division 1

Median Rearrangement

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Dance Moves, Min Max LCM

SnackDown 2021 - Online Round 1B

Insider Subsequences, Help Nishant, Largest Laddu, Queens Placement

SnackDown 2021 - Online Pre-Elimination

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

SnackDown 2021 - Online Elimination Round (Rated for all)

Sorting Segments

Code: Nium Challenge

Queries in an Array, Divide Students Into Classes, Alphabet Difference

CodeChef Starters 30 Division 2 (Rated)

Minimum Coloring, Maximizing LIS, Gift Shop and Coupon, Prefix Suffix Operations, Unbalanced Reversals, Balanced Reversals

CodeChef Starters 31 Division 1 (Unrated)

XOR and AND, The Unchanging OR

March Lunchtime 2022 Division 1

Adjacency Love, Separate Them All, Winter, Mathology

May Cook-Off 2022 Division 1 (Rated)

Different Subarrays Rearrange, Triple Inversions

June Cook-Off 2022 Division 1 (Rated)

Throw and Take, Simple XOR, Prefix Suffix Distinct, Split AND Sum

Starters 48 Division 1 (Unrated)

Positive array

July Long Two 2022 Division 1 (Unrated)

Maximize Difference, Similar Subsequence, Concat Sort

Starters 49 Division 1 (Unrated)

Students-Far From Hostel, Split The String, High Frequency, Good Indices, Monks

Starters 50 Division 1 (Unrated)

Add Subtract Equalize, Average Permutation, Sum Product Segments, Beautiful Array, Air Blimp

Starters 51 Division 1 (Unrated)

Adjacent Xors, Copy and Paste, Different Medians

August Lunchtime 2022 Division 1 (Rated)

Tree Coloring

September Lunchtime 2022 Division 1 (Rated) (Based on EJOI)

Increasing Addition

Starters 125 Division 1 (Rated till 6-Stars)

Bucket Game, Binary Minimal

Total Problems Solved: 112