Siddharth Singh

• Username: 4★it_is_tough
• Country:  India
• Student/Professional:Student
• Institution:Jaypee Institute of Information Technology Noida, Uttar Pradesh, 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: 21

Current Ratings Graph Old Ratings Graph

1834 (+11)RatingProvisional
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Starters 110 Divison 2 (Rated)(2023-11-29 22:00:02)

Global Rank:   335

Cheated in:   

Ratings System Update

(2023-11-29 22:00:02)

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1792 (-75)RatingProvisional
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Starters 51 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   634

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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Contests (21)

December Lunchtime 2021 Division 2

Romantic Reversals, Maximum Trio

CodeChef Starters 21 Division 2 (Rated)

ChefWM, And Or Union, Akash and Grid

CodeChef Starters 22 Division 2 (Rated)

An Interesting Sequence, Even Subset Xor, Merging Binary Strings

Infinity 2k21 Division 3 (Rated)

Marbles, The Squid Game, Red Light, Green Light

Code Drive Division 2 (Rated)

Again XOR problem

January Cook-Off 2022 Division 2

Palindromes Not Allowed, Mean Maximization, Subsegment Divisibility

January Lunchtime 2022 Division 2

Subarray permutations

CodeChef Starters 31 Division 2 (Rated)

XOR and AND, The Unchanging OR, Sign Moves, Alternating String

CodeChef Starters 34 Division 2 (Rated)

Average Array, Binary String Xor

Starters 41 Division 2 (Rated)

Equal Integers, Is this priority or parity!, Path Parity

Starters 42 Division 2 (Rated)

Minimum or Maximum, Divisible by 3

Starters 43 Division 2 (Rated)

The Optimal Pairs, Distinct Palindrome

June Lunchtime 2022 Division 2 (Rated)

Equal by XORing, XOR Times 2 Is Sum, The Lost Array, Zero Ones Equal One Zeros, Max Shift After XOR

June Long Two 2022 Division 2 (Unrated)

Count the ACs, Strong Elements

Starters 45 Division 2 (Rated)

Even Equal Odd, Xor and Multiply, KBG and GN-Theory, Retrieve the Array, Adjacent Sum Parity

July Lunchtime 2022 Division 2 (Rated)

Easy Pronunciation, Yet Another Palindrome Making Problem, Maximum Median Matching, Largest Family

July Long Two 2022 Division 2 (Unrated)

Sum of Product 1, To Divide or Not To Divide, Maximize Difference, Concat Sort

Starters 51 Division 2 (Rated)

Adjacent Xors, Split N, Copy and Paste, Different Medians

Starters 70 Division 2 (Rated)

Minimum distance between 1s, Prime Reversal, Frequency Array Retrieval

Starters 71 Division 2 (Rated)

Pet Store, Maximizing LCS, Flip the Prefix

Starters 80 Division 2 (Rated)

Prefix Permutation, Equal Elements

Starters 84 Division 2 (Rated)

Max count of 1, Digit Operation, Max Binary, Chef And Adjacent Sums

Total Problems Solved: 125