rihaz zahir

• Username: 4★spinxo
• Country:  India
• Student/Professional:Professional
• Organisation:Nagarro Software Pvt. Ltd.
• CodeChef Pro Plan: No Active Plan. View Details

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

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No. of Contests Participated: 28

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1810 (-43)RatingProvisional
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June Challenge 2018 Division 2(2018-06-11 15:00:05)

Global Rank:   3170

Cheated in:   

Ratings System Update

(2018-06-11 15:00:05)

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1810 (+235)RatingProvisional
Rating i Provisional Rating, click to know more

June Challenge 2018 Division 2(2022-12-20 00:00:00)

Global Rank:   3170

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 (28)

November Challenge 2013

Uncle Johny

October Challenge 2015

Time measure, Who dares to be a millionaire, Count Subarrays

December Challenge 2015

Chef and the stones, Plane Division, Oracle Devu and Longest Common Subsequence

November Cook-Off 2015

Sereja and Line, Sereja and Array and Subtracting

October Lunchtime 2015

emitL

August Challenge 2016

Chef and Chocolate

September Challenge 2016

Faded Palindromes, Chef and digits of a number

November Challenge 2016

Chef and squares, Task for Alexey

December Challenge 2016

Train Partner, Kirito in labyrinth, Roses for Alexey

December Cook-Off 2016

Chef and Subset, Chef and Subarrays

July Lunchtime 2016

Drumpf for President!

December Lunchtime 2016

Superheroes and villains

January Challenge 2017

Cats and Dogs, Digits Cannot Separate, Reservior, Tourists in Mancunia, Capital Movement

February Challenge 2017

Interval Game, Chef and Triangles, Chef and His Apartment Dues, Most Frequent Element, Gerrymander

March Challenge 2017

Xenny and Alternating Tasks, Bandwidth of a matrix, Bear and Extra Number

January Cook-Off 2017

Digit Longest Increasing Subsequences 2

April Challenge 2017

Dish Of Life, Bear and Row 01, Similar Dishes

May Challenge 2017

Chef and Sub Array , Median of adjacent maximum numbers, Blocked websites, Chef and his daily routine, Courses in an university

June Challenge 2017

Chef and Prime Queries, A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets

July Challenge 2017

Chef and Sign Sequences, Pishty and tree, Calculator , IPC Trainers

August Long Challenge 2017

Chef and Rainbow Array, Chef and Mover, Palindromic Game, Greedy Candidates

December Challenge 2017

Chef and Hamming Distance of arrays, Penalty Shoot-out, Total Diamonds, Chef And his Cake

March Cook-Off 2017

Rainbow Graph, Yet Another Card Game, Safe Robot

July Cook-Off 2017

Chang and Bitwise OR, Chang and the Perfect Function, Chang and Perfect Quadruples

March Lunchtime 2017

Bear and Species, Bear and Ladder

November Lunchtime 2017

Smart Strategy

May Cook-off 2018 Division 2

Secret Recipe

May Challenge 2018 Division 2

Mighty Friend, Minimum Deletions, Xor Again, Fake Binary Search, Dibs on Fibs

June Challenge 2018 Division 2

Naive Chef

Total Problems Solved: 209