MD ISTAKHAR ANSARI

• Username: 2★istakhar054
• Country:  India
• Student/Professional:Student
• Institution:Academy of Technology Kolkata, West Bengal, India
• CodeChef Pro Plan: No Active Plan. View Details

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Last 6 Months 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

Rating Graph

No. of Contests Participated: 29

Current Ratings Graph Old Ratings Graph

1506 (-275)RatingProvisional
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Starters 193 (Rated)(2025-07-02 22:30:02)

Global Rank:   1598

Cheated in:   Cheated in START193B

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(2025-07-02 22:30:02)

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1408 (-36)RatingProvisional
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December Long 2022 Division 4 (Rated)(2022-12-20 00:00:00)

Global Rank:   38

Cheated in:   

Ratings System Update

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

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Learning Paths (0)

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Contests (29)

September Challenge 2020 Division 2

Ada Matrix, A Problem on Sticks

December Challenge 2020 Division 2

Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution

January Challenge 2021 Division 3

Fair Elections, Chef and Division 3, Point Of Impact, Encoded String

February Challenge 2021 Division 3

Chef and Meetings, Highest Divisor, Maximise Function, Prime Game, Team Name, Frog Sort

May Challenge 2021 Division 3 (Rated)

Xor Equality, Tic Tac Toe, Modular Equation, Golf, Solubility

May Long Two 2022 Division 3 (Rated)

Make them Zero, Degree of Polynomial, Score High, Subarrays with length, Subsequence-Numbers Divisible by 7, Xor Palindrome

Starters 41 Division 2 (Rated)

Equal Integers, Path Parity

Starters 43 Division 4 (Rated)

Burgers, DNA Storage, Distinct Palindrome, Joining Date, Waiting Time

November Long 2022 Division 4 (Rated)

Water Mixing, String Game, Time Complexity, Spliting Balls, Split and Maximize

Starters 70 Division 3 (Rated)

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

Starters 71 Division 3 (Rated)

Pet Store, Flip the Prefix, Snapchat, Perfect Trio, Maximizing LCS

December Long 2022 Division 4 (Rated)

Reach fast, Maximise XOR, Gcd of Subarrays, Good Investment or Not, Divisible by K, Divisible by A_i

Starters 72 Division 3 (Rated)

Indivisible, Apples and oranges, N Triplets

Starters 73 Division 3 (Rated)

Find an integer, Consecutive Xor, Lucky Numbers, Append for OR

Starters 74 Division 2 (Rated)

Odd Even Binary String, Minimal Inversions, Lcm hates Gcd, Distinct Values

Starters 75 Division 2 (Rated)

Prefix Ones, Three Powers of Two

January Long 2023 Division 3 (Rated)

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

February Cook-Off 2023 Division 2 (Rated)

Take Not Less, Permutation and Modulus, Minimum Beauty

Starters 77 Division 2 (Rated)

Concat Palindrome

Starters 78 Division 2 (Rated)

Valid Expression, Solve More Problems!, Bitwise Equation

Starters 79 Division 2 (Rated)

One Stone or Two Stones, Add smallest prime factor, Distinct Opposite Sums

Starters 80 Division 2 (Rated)

Permutation Subsequence, c8kbf and Tree, Prefix Permutation, Equal Elements

Starters 82 Division 2 (Rated)

Make A-B Same, MIN To MAX, Difference Matrix, Find eX

Starters 83 Division 2 (Rated)

Construct String, Order by XOR

Starters 192 (Rated)

Security Lines, Equate XY, No 3 Please!

Starters 193 (Rated)

Mex Tree (Min), Add Permutation, Check Odd Even Divisors, Count Odd Even Divisors

Total Problems Solved: 125