Raj kumar ray
- 3★ndaraj_0201
- India
- Professional
- List of teams by Raj kumar ray
- https://discuss.codechef.com/u/ndaraj_0201
- No Active Plan. View Details
Activity Heat Map
NewRating Graph
Ratings System Update
(2023-04-26 22:00:02)Ratings System Update
(2022-12-20 00:00:00)CodeChef Rating Distribution
Submissions
Practice Problems (238):
Practice:
Bytelandian gold coins, Simple Sorting, The Lead Game, Maximal crosses, Cutting Recipes, Home Delivery, Racing Horses, Ciel and Receipt, Chef and Digits, Add Two Numbers, Second Max of Three Numbers, Counting Pretty Numbers, Encoding Message, War of XORs, Chef Restaurant , Qualifying to Pre-Elimination, Chef and Semi-Primes, Making a Meal, Playing with Strings, Counting Inversions Revisited, Matrix Decomposition, Majority Element, Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution, Self-Destructing Strings, Catch the Thief, Three Letters, Minimum Attendance Requirement, One Zero Swaps, Maximum Value, Bodybuilder, Prime Tuples, Distinct Pair Sums, Body Mass Index, Space Arrays, Total Score, Thief and Police, Coprime Range, Total Correct Submissions, Turn It, Motivation, Pawri Meme, Matrix XOR, Birthday Gifts, Valid Pair, Passing Marks, Chef in Heaven , Bench Press, Joker and Batman, Chocolate Monger, Equinox Strings, Array Rotation, Coldplay, Hoop Jump, Marathon, Vaccine Drive, Tom And Jerry 1, False Number, Lazy Chef, HTML Tags, XOR Folding, ICPC Balloons, Chefland Visa, Richie Rich, The One Where No One is Ready, Chess Match, The Wave, Cyclic Quadrilateral, Unpleasant Ones, Different String, Chef and Spells, Three Dices, Equal Difference, Beautiful Pairs, XOR-ORED, Chess Format, Food Chain, Red Alert, Say No To Drugs, Team Formation, Hardest Problem Bet, Maximise the Subsequence Sum, Remove One Element, The Old Saint And Three Questions, The Grid Fill Problem, Find the Direction, Obtain the Sum, The Two Dishes, Add and Divide, Zebra Crossing, Fake Swaps, Adjacency Hatred, Make it Divisible, A Subtask Problem, Chef in Vaccination Queue, Maximum Light Up, The Preparations, Professor And Directions, Chef And Salary Pay, Magical Doors, Which Mixture, RCB and Playoffs, Division , Gold Mining, Maximum Number Of Distinct Elements, Alternating Work Days, Pass or Fail, Chef and Pairing Slippers, Chef and Water Car, Exactly N plus 1 Values, Odd Sum, Average Flex, Problem Category, GCD of Prefixes, Minimum Number of Pizzas, Chef and Stock Prices , Marbles, The Squid Game, Dalgona Treat, String protocol, World Chess Championship, Optimal Sorting, Sarthak and his Magic Grid, Vedant and his Hidden Array, Aujasvit and the Circle Game, Palindromes Not Allowed, Mean Maximization, An Interesting Sequence, Empty flat, Building Towers, Stolen Cheese, Weird Volume, Equal MEX, Bit Experts, Meenas accounts, Perfect Permutation, K Distinct Array, Points and Lines, Careless Chef, Car or Bike, Hostel Room, Control the Pollution, Distinct Binary Strings, Too many items, Lazy Salesman, Peaceful Party, Prefix Permutation, Blackjack, The product mystery, Bomb the base, Car Choice, Qualify the round, Wordle, Prefix Suffix Operations, Maximize the Minimum, Training Plans, Two Merchants, Flip Sorting, Chef Goes Shopping, Apples and Oranges, Distinct Dilemma, Broken Life, The Cheaper Cab, Monthly Budget, Non Adjacent Flips, Make Them Equal, The Cooler Dilemma 2, Average Array, Good Quality Bulbs, Pair Pain, Compress the Video, Football Cup, Problems in your to-do list, Total Prize Money, Degree of Polynomial, Rating Improvement, Reduce to zero, Age Limit, Determine the Score, Biryani classes, Fitness, Best of Two, Journey of the Knight, Game of Piles Version 1, Slow Solution, Interior Design, Easy Pronunciation, Yet Another Palindrome Making Problem, Maximum Median Matching, High Frequency, Valid Minimum, Permutation GCD, Discount, Nearest Court, Average Permutation, Different Medians, TV Discount, Dominant Element, Odd Pairs, Number of Credits, Sleep deprivation, Equalize AB, Reach on Time, Akash and Dinner, Snapchat, Maximizing LCS, Indivisible, Apples and oranges, N Triplets, Find an integer, Consecutive Xor, Lcm hates Gcd, Minimal Inversions, Prefix Ones, Three Powers of Two, Two Ranges, Prefix Permutation, Equal Elements, Distinct Matrix, Divide Pages, Maximum Capacity, Make A-B Same, Difference Matrix, MIN To MAX, Construct String, Digit Operation, Crazy Bishops on Chessboard, Efficient PAN Linking, Inside The Stadium, Unstable Subarray, Largest Y, Maximise Score, DDMM or MMDD, Rectangular Tiling, Distance Coloring, Dotify Playlist
Contests (133):
January Lunchtime 2021 Division 3 (Unrated):
Ashishgup and Interviews, Pair Me, Even Differences, Even Sum
February Challenge 2021 Division 3:
Frog Sort, Chef and Meetings, Maximise Function, Highest Divisor
July Challenge 2021 Division 3 (Rated):
XxOoRr, Chef vs Bharat, Optimal Denomination, Maximum Production, Relativity, K Path Query
August Challenge 2021 Division 2 (Unrated):
Chef and Bulb Invention, Problem Difficulties, Olympics Ranking
September Challenge 2021 Division 2 (Unrated):
XOR Equal, Shuffling Parities, Airline Restrictions, Travel Pass
September Lunchtime 2021 Division 3:
Two Dishes, Prefix Sums, Vaccine Dates , Yet another SOD problem
SnackDown 2021 - Online Round 1A:
Yet Another Flipping Problem, Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM
CodeChef Starters 18 Division 3 (Rated):
Palindromic Binary Numbers, Compare those strings, Back to Campus, Make them equal
C.O.D.E.R.S Division 2 (Rated):
The One On The Last Night, The One with All the Candy, The One with Ross Wedding
CodeChef Starters 24 Division 2 (Rated):
Anti Palindrome, Avoid Contact, Divisors and Reciprocals, Yet Another Constructive Problem
February Lunchtime 2022 Division 2:
Four Equidistant Points on a Grid, Parallel Processing, Magnet Sort
CodeChef Starters 28 Division 2 (Rated):
Travelling in the Graph, Permutation Xority, Count the Holidays
CodeChef Starters 32 Division 2 (Rated):
Maximize the Minimum, Finding Shoes, Training Plans, Flip Sorting
May Long Two 2022 Division 2 (Unrated):
Xor Palindrome, Subarrays with length, Score High, Make them Zero
July Long Two 2022 Division 2 (Unrated):
Maximize Difference, To Divide or Not To Divide, Sum of Product 1
Learning Paths (117):
Learn SQL:
Introduction, Create table , Insert table , How to insert to a table, Debug this query, Alter table , update table, Practice Problem - Alter table, Practice Problem - Update table, Delete From, Constraints, Practice - Delete From, Debug this query, Project - Customer Database, Practice problem-1, Practice problem-2, Practice problem-3, Practice problem-4, Introduction to Queries, SELECT Query, DISTINCT, WHERE, BETWEEN, Practice problem, Debug this query, AND, OR, Like, Practice problem, Debug this query, Order by, LIMIT, NULL Values, Project - Food delivery, Project - Food delivery, Project - Food delivery, Project - Food delivery, Project - Food delivery, Project - Food delivery, Project - Food delivery, COUNT(), MAX() and MIN() , ROUND() , Problem - COUNT() MAX() and MIN() , Problem-ROUND(), Debug this query, SUM(), AVG(), Problem - SUM() and AVG() , Group By, Having, Problem-Group By & Having, Debug this code, Practice problem Introduction, Practice problem-1, Practice problem-2, Practice problem-3, Practice problem-4
SQL Intermediate:
Introduction - Combining tables manually, Combining tables with SQL, Combining tables with SQL, Inner Joins, Left Joins, Primary Key vs Foreign Key, Cross join, Union, WITH, Project- Supermarket, Practice problem-1, Data Transformation, Non-Correlated Subqueries, Problem - Non-Correlated Subqueries, Correlated Subqueries, Problem - Correlated Subqueries, Project - ABC ecommerce website, Practice Problem - 1, Practice Problem - 2, Practice Problem - 3, Union All, Intersect, Except, Conditional Aggregates Introduction, Null, Case - When, Count using Case, Sum using Case
SQL at Work:
Case study - Covid impact on ABC Retail, Case study - Covid impact on ABC Retail, Case study - Covid impact on ABC Retail, Intermediate SQL Project - ABC Retail, Intermediate SQL Project - ABC Retail, Intermediate SQL Project - ABC Retail, Intermediate SQL Project - ABC Retail, Intermediate SQL Project - ABC Retail, Intermediate SQL Project - ABC Retail, Case study - InstaPizza, Case study - InstaPizza, Case study - InstaPizza, Case study - InstaPizza, Case study - InstaPizza, Case study - InstaPizza, Case study - Logistics, Case study - Logistics, Case study - Logistics, Case study - Logistics, Case study - Logistics, Case study - Logistics, Case study - Product line research, Case study - Product line research, Case study - Product line research, Case study - Product line research, Case study - Product line research, Case study - Customer preference, Case study - Customer preference, Case study - Customer preference, Case study - Customer preference, Case study - Customer preference
Practice Paths (29):
Level up from 1* to 2*:
Motivation, Chef and IPC Certificates, Average Flex, Nobel Prize, Studying Alphabet, Snake Procession, Daanish and Problems, Chopsticks, Make all equal using Pairs, Lazy Salesman, Chocolate Monger, Simple Statistics, Pushpa
Contributions
Problems Authored (0)
No Contribution
Problems Tested (0)
No Contribution
Editorials Contributed (0)
No Contribution