Raj

Practice: 

Flipping Coins, Cleaning Up, Ciel and A-B Problem, Coin Flip, Fire Escape Routes, Count K-Primes, Walking Path, Gcd Queries, Primality Test, Minimum Cost Walk, Remember My Name, Breaking Bass, Smaller than the element, King of Gopalmath, Chef and Strange Addition, Old Farmer, Chef and An Ideal Problem, Summation over nCr, Up for a Game, Expected Xor, Palindromes, Count the K-tuples, Chipped Tree, Naruto Run Extended, Is it Sorted or Not, That is the Question, Biggest Pallindrome

Past ZCO Problems: 

Video Game, Tournament, Smart Phone

November Challenge 2017: 

Villages and Tribes

January Challenge 2018: 

Rectangle

January Cook-Off 2018: 

Survive in ChocoLand

ICO 2018 Preparatory Series - Contest 6: 

Minimum Maximum Partition

January Lunchtime 2018: 

Chef and Game with Sequence

Code Sense: 

Seed Of Number, A Classmate, A Programming Contest

CodeWhizz 1.0: 

Bit Pair Sum

Enigma - Plinth Codesprint: 

Easiest Problem, Laziness of Killjee

GST January SRM: 

Easy Navigation

C Cubed : 

Euclid in Manhattan

March Challenge 2018 DIV 2: 

A Big Sale, Mix the Colors, Chef and Glove

March Cook-off 2018 Division 2: 

Chef Goes to the Cinema, Chef Judges a Competition

April Cook-off 2018 Division 2: 

Cut the Board

May Cook-off 2018 Division 2: 

Secret Recipe

June Cook-Off 2018 Division 2: 

Archi and Comparsion

July Cook-Off 2018 Division 2: 

OR Matrix, Encoding Message

September Mega Cook-Off 2018 Division 2: 

ATM Machine, Make a Permutation

December Cook-Off 2018 Division 2: 

Camp Or Not

April Lunchtime 2018 Division 2: 

Two vs Ten

May Lunchtime 2018 Division 2: 

Trace of Matrix

April Challenge 2018 Division 2: 

Weight of Numbers, Average of Pairs, Workers

July Challenge 2018 Division 2: 

Strike or Spare, Magic Set

August Challenge 2018 Division 2: 

Modular GCD, Problem Sort, Sheokand and Number, Spell Bob

November Challenge 2018 Division 2: 

Chef and Ridges, Appy Loves One, Chef and Difficult Contests, Chef and Happiness

October Challenge 2018 Division 2: 

Chef and Circles, Byte to Bit, Minimize Digitsum, Chef and Serves, Appy and Balloons

July Lunchtime 2018 Division 2: 

Split Stones, Forced Particles

August Lunchtime 2018 Division 2: 

Chef and Problem Setting, Chef and Eid

Quick Code (Rated for Division 2): 

Immortal Frieza, Majin Vegeta, Dr Geros lab

Keteki Quick Match 10: 

Total Strings (keteki)

LoC May 2018: 

Remainder

ProCon 2018 (Rated for all): 

The Great Run, Kill them with your success

Encoder (Rated for Division 2): 

Knight Chess, Paint the Wall

January Challenge 2019 Division 2: 

Yet Another Problem About Sequences, Different Neighbours, Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes, A Pizza Slice

Plinth-Enigma'19 LNMIIT Techfest - (Rated for all): 

XOR! Wait for it, Return of the Gargoyle King

March Challenge 2019 Division 1: 

Cheating on Queue, Yet Again a Subarray Problem

Coders' Legacy 2019 (Rated for all): 

Bathwater, IPL and RCB

ICM Technex 2019: 

Vertex Permutation Revisited, Array got some moves, Bob and his strict mom

May Cook-Off 2019 Division 1: 

Misha and Nice Sets

August Cook-Off 2019 Division 1: 

Rich Substrings, Two Circles

August Lunchtime 2019 Division 1: 

Chef Does Coke Yet Again

Alkhwarizm (Rated for all): 

Weirwood Trees, Danny Wants To Know

January Lunchtime 2020 Division 1: 

Under the Tunnels

ENIGMA - PLINTH'20 LNMIIT (Rated for all): 

Corruption in Freedonia, Gru is Handing Out Bananas, Minion AND Range, Recruit Villagers

RECode 12.0 (Rated for all): 

Chef and String, Chef and Walk, Chef and Rotation, Chef and Numbers

Coders' Legacy (Rated for all): 

Chef vs Doof, Doof on Cartesian, Doof fires Brackets

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