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Programming and DSA

Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.

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Programming and DSA

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Programming and DSA

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Practice Compete Compiler
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ococonomy1

  • 6★ococonomy1
  •   Japan
  • Student
  • Hokkaido University Sapporo, Japan
  • No Active Plan. View Details

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Rating Graph

No. of Contests Participated: 32
2382 (+5)RatingProvisional
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Starters 208 (Rated till 6 star)(2025-10-15 22:00:00)
Global Rank:   37
Cheated in:   

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Contests (32)

Starters 89 Division 4 (Rated)

Monopoly, Plus 2 or Minus 1, Positive or Negative Subarrays, Parliament, DDMM or MMDD

Starters 100 Division 2 (Rated)

Prime Permutation, Stamps 100

Starters 102 Division 2 (Rated)

Chess ELO, Parity Permutation, Light The Bulb, Chef Segment, Bit Play, Array Sum

Starters 103 Division 1 (Rated till 6 Stars)

Squarified, Chandelier, Unique xor, Divisible By 8

Starters 104 Division 1 (Rated till 6 Stars)

Find Diameter, Lexicographically Largest , Construct An Array, Maximise Sum

Starters 106 Division 1 (Rated till 5 Stars)

Playing with OR, Save People, Guess the winner!, Count Possibilities, Smallest Excluded LCM, Reach Anywhere, Summing the values

Starters 107 Division 1 (Rated till 6 Stars)

Maximal Expression, Odd Matrix, OR Permutation

Starters 108 Division 1 (Rated till 6 Stars)

Palindromic Prime Numbers, Fair Distribution, Multiple of 9

Starters 109 Division 1 (Rated till 5 Stars)

Minimum XOR, Chef Lost an Array, Alter Ego, Chroma Swap

September Short 2023 Division 2 (Unrated)

GCD Discount, Ultimate Fencing, Lucky Seven, Slow Start, Mixing Extraordinaire

Starters 115 Division 1 (Rated)

Greedy LIS Algorithm, Make All Zero

Starters 116 Divison 1 (Rated till 6-Stars)

Chef Product, ORST , Permutation Sort, Exact Savings

Starters 118 Division 1 (Rated till 5-Stars)

Xorry 2, Xorry 1

Starters 119 Division 1 (Rated till 6-Stars)

K Odd Sum, Unalike Gcd & Lcm

Starters 120 Division 1 (Rated till 6 Stars)

Find Permutation , Construct Permutation, Count Subarrays

Starters 123 Division 1 (Rated till 6-Stars)

Minimum And Maximum I, Yet Another Alice Bob Game, Trial of the Conqueror, Minimum And Maximum II

Starters 134 Division 1 (Rated till 6-Stars)

Origin, Prison Escape, 3out1in

Starters 136 Division 1 ( Rated till 6-Stars )

Lexicographically Maximal Prefix AND, Sum of Modes

Starters 139 Division 1 (Rated till 5-Stars)

Sum of N, Destroying Bridges Part 2

Starters 150 (Rated till 6 stars)

Equal Pairs (Hard), Replacing Game

Starters 156 (Rated till 6 stars)

Interval Cliques, Partition Score

Starters 164 (Rated till 5 stars)

Halloween Array, Connecting Wells

Starters 166 (Rated till 6 stars)

All Equal, Distinct Power, Divisors Array (Hard Version), Divisors Array (Easy Version), Costly Permutations, Chefland Library

Starters 171 (Rated till 5 star)

Strange Nim Game, White Wall, Volcanic Eruption

Starters 172 (Rated till 5 stars)

Transform String, AndOr

Starters 173 (Rated upto < 2700)

Cool Subsequences, Introverts, Cool Checker, Time Penalty, Overwrite

Starters 174 (Rated upto 2700)

GCD Add Size, Meximal Sum, Mystic Slimes, Graph Monsters

Starters 175 (Rated till 5 stars)

Alternate It!, Multiplexer

Starters 177 (Rated till 5 star)

Blocks on a Tree, Sum By OR, Flip or Reverse

Starters 178 (Rated till 6 star)

Smoothly Increasing , Big Difference, Minimum Colours (Easy)

Starters 179 (Rated till 5 star)

Station Allocation, Can you reach

Starters 180 (Rated till 6 star)

Shall we play a game, Huh, Easy

Starters 181 (Rated for all)

The Best Matrix, Tree Colouring (Hard), Flip Prefix

Starters 186 (Rated till 6 star)

Distinct Arrays , Segment Tree Reconstruction, Mod and Make Y

Starters 187 (Rated till 6 star)

Anti-Subarray Sum, Major Infection, OR What, Distinct Representations

Starters 190 (Rated till 5 star)

Subsequence Sort, Min-Max Deletion

Starters 192 (Rated till 6 star)

MinPath Minimize, Equate XY, No 3 Please!

Starters 193 (Rated for all)

Mex Tree (Min), Add Permutation

Starters 194 (Rated for all)

Terminal States, Munchys Modulo, Good Arrays (Cyclic), Good Arrays (Not Cyclic)

Starters 195 (Rated till 5 star)

String Deletions, Bugged Robot, Game (Easy), Game (Hard)

Starters 196 (Rated till 5 star)

GCD Reduction, Beauty in Everything, Append Average, Swap Sum

Monday Munch - DSA Challenge

Diameter of the tree, Search an element in an array, ZigZag Traversal, Merge two sorted arrays, Check Palindrome, Maximum Sum of K Elements

Starters 206 (Rated till 5 star)

Cyclic Shift Minimization, Product Equal Sum, Min Steps, Gladiator Fighting

Starters 207 (Rated till 5 star)

Balanced Subarrays, Adjacent Sums, Make Subarray, Maximum Smaller

Starters 208 (Rated till 6 star)

XOR Sorting, Positive-Negative, GCND, Cycle and Add

Starters 210 (Rated till 5-star)

Make All, First Element Counting

Total Problems Solved: 166

2382
(Div 1)
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CodeChef Rating (Highest Rating 2382)
  • 152 Global Rank
  • 46 Country Rank

Badges

Contest Contender - Silver Badge

Contest Contender - Silver Badge

Received for participating in 25 Contests

Problem Solver - Bronze Badge

Problem Solver - Bronze Badge

Received for solving 50 Problems

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