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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

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

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Practice Compete Compiler
Home » Walter Mbano
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Walter Mbano

  • 1★walterobrian
  •   Zimbabwe
  • Professional
  • BetaCode Solutions
  • View Details

Submissions Heat Map

Rating Graph

No. of Contests Participated: 95
1127 (-3)RatingProvisional
Rating i Provisional Rating, click to know more
Starters 208 (Rated)(2025-10-15 22:00:06)
Global Rank:   18842
Cheated in:   

Ratings System Update

(2025-10-15 22:00:06)
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1244 (+3)RatingProvisional
Rating i Provisional Rating, click to know more
Starters 66 Division 4 (Rated)(2022-12-20 00:00:00)
Global Rank:   10449
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 (2)

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Linked Lists

28%
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Learn C++

8%

Practice Paths (3)

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Level up from 1* to 2*

95%
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500 to 1000 difficulty problems

Completed

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Practice for ZCO and INOI

4%

Contests (95)

Quick Code (Rated for Division 2)

Immortal Frieza

May Challenge 2020 Division 2

Coronavirus Spread, Isolation Centers

June Challenge 2020 Division 2

Chef and Price Control

July Challenge 2020 Division 2

Chef and Card Game, Chef and Strings

September Challenge 2020 Division 2

A Problem on Sticks

RECode 12.0 (Rated for all)

Chef and String

November Challenge 2020 Division 2

Ada and Dishes

December Challenge 2020 Division 2

Even Pair Sum, Vaccine Production, Vaccine Distribution

InfInITy 2k20 Division 2 (Rated)

The One Who Knocks!

January Challenge 2021 Division 3

Fair Elections, Chef and Division 3, Point Of Impact, Encoded String

January Lunchtime 2021 Division 3 (Unrated)

Pair Me, Even Differences

February Challenge 2021 Division 3

Frog Sort, Chef and Meetings, Maximise Function, Highest Divisor

March Cook-Off 2021 Division 3

Pawri Meme, Matrix XOR, Weight Balance

February Lunchtime 2021 Division 3

Daanish and Problems, Smallest Possible Whole Number

CodeChef Div 3 Rated Contest 2021 Division 3

Chef and Patients, Body Mass Index, Total Score

February CodeChef Starters 2021 Division 3 (Rated)

Maximum Value, College Life 2, Chef and Coupon

March Lunchtime 2021 Division 3

Motivation

March CodeChef Starters 2021 Division 3 (Rated)

Nobel Prize, Possible Victory

April Challenge 2021 Division 3

Valid Pair, World Record

August Challenge 2021 Division 3 (Rated)

Chef and Bulb Invention, Problem Difficulties, Olympics Ranking

August Cook-Off 2021 Division 3

Which Division

CodeChef Starters 9 Division 3 (Rated)

Black cells in a chessboard, Large Square, Bus full of passengers

September Challenge 2021 Division 3 (Rated)

Shuffling Parities, Airline Restrictions, Travel Pass

SnackDown 2021 - Online Qualifiers

Lucky Number

October Challenge 2021 Division 3 (Rated)

Longest AND Subarray, Three Boxes, Which Mixture

November Challenge 2021 Division 3 (Rated)

Weird Palindrome Making, Equal Coins, Which Fuel is Cheaper

C.O.D.E.R.S Division 3 (Rated)

The One with Russ, The One Where It All Began

Infinity 2k21 Division 3 (Rated)

Red Light, Green Light

January Cook-Off 2022 Division 3

Palindromes Not Allowed, Mask Policy, Hungry Ashish

February Long 2022 - II, Division 3 (Rated)

World Chess Championship, Chef and NextGen

CodeChef Starters 27 Division 4 (Rated)

Get Lowest Free, Too many items, Shopping Change, Blackjack

February Lunchtime 2022 Division 4

Good Program, Battery Low, Watching Movies at 2x, Chessboard Distance

CodeChef Starters 28 Division 4 (Rated)

Chef and Instant Noodles, Permutation Xority, Self Defence Training, Car Choice, Qualify the round, Count the Holidays

March Long One 2022, Division 4 (Rated)

Akash and Function, Discus Throw, Bath in Winters, Wordle

CodeChef Starters 29 Division 4 (Rated)

String protocol, Fill the Bucket, Tyre problem, Bomb the base

March Long Two 2022, Division 4 (Rated)

Chef and Races, Increase IQ, The Three Topics

March Cook-Off 2022 Division 4

Janmansh and Games, Janmansh and Coins, Janmansh and Assignments, Janmansh at Fruit Market

CodeChef Starters 31 Division 4 (Rated)

Alternating String, Sign Moves, Cup Finals, Group Assignment, Economics Class

March Lunchtime 2022 Division 4

Credit score, Sad Splits, Minimum number of coins, Buy 2 Get 1 Free, CRED Coins

CodeChef Starters 32 Division 4 (Rated)

Binary String Cost, Volume Control, Finding Shoes, Course Registration

CodeChef Starters 33 Division 4 (Rated)

The Cheaper Cab, Monthly Budget, Minimum Cars required, Non Adjacent Flips

April Long One 2022, Division 4 (Rated)

Ezio and Guards, The Cooler Dilemma 1, The Cooler Dilemma 2

CodeChef Starters 34 Division 4 (Rated)

Is the Score Consistent, Good Quality Bulbs, Positive Products, Expiring Bread

April Lunchtime 2022 Division 4(Rated)

Lunchtime, Mario and Transformation, Mario and Bullet

Starters 36 Division 4 (Rated)

Who is taller!, Presents for Cheffina, Chef and Chapters, Chef and Bird farm

April Long Two 2022 Division 4 (Rated)

Sasta Shark Tank, Six Friends, Best Coupon

May Long One 2022 Division 4 (Rated)

Sugarcane Juice Business, The Attack of Queen, Football Cup, Miami GP

May Lunchtime 2022 Division 4 (Rated)

Bucket and Water Flow , Apples and Oranges, How many unattempted problems, Problems in your to-do list

May Long Two 2022 Division 4 (Rated)

Practice makes us perfect, Total Prize Money

July Cook-Off 2022 Division 4 (Rated)

Enough Space, K-MEX, Chef Drinks Tea, High Accuracy

June Cook-Off 2022 Division 4 (Rated)

Rating Improvement, Playlist, First and Last

Starters 42 Division 4 (Rated)

Age Limit, Equal Distribution, Minimum number of Flips

June Long One 2022 Division 4 (Rated)

Chairs Requirement, Subscriptions

Starters 44 Division 4 (Rated)

Biryani classes, Air Hockey

Starters 43 Division 4 (Rated)

Burgers, DNA Storage, Distinct Palindrome, Joining Date, Waiting Time

June Long Two 2022 Division 4 (Rated)

Complementary Strand in a DNA, Fitness

July Long One 2022 Division 4 (Rated)

Bidding, Pass the Exam, Chef and Candies

July Lunchtime 2022 Division 4 (Rated)

Interior Design, True and False Paper

Starters 48 Division 4 (Rated)

Buy Lamps, Fill The Grid, Passes for Fair, Fill Candies, Make Palindrome 2

July Long Two 2022 Division 4 (Rated)

Chef in his Office, Insurance

Starters 49 Division 4 (Rated)

N Buttons 1 Bulb, Is it hot or cold, Maximise the Tastiness

Starters 50 Division 4 (Rated)

Discount, Mileage matters, Nearest Court

August Long 2022 Division 4 (Rated)

Sale Season, Maximum Submissions

Starters 52 Division 4 (Rated)

AI Analysing Code, WA Test Cases, Air Conditioner Temperature

Starters 53 Division 4 (Rated)

Car Trip, Greater Average, Weights

Starters 54 Division 4 (Rated)

Number of Credits, Ticket Fine

September Long 2022 Division 4 (Rated)

Speed Limit Test, Bob at the Bank, Chef and Wire Frames, Good Pairs

Starters 58 Division 4 (Rated)

Break the elements, Equivalent Numbers, Ranklist Pages, Reach the Target, Remove Bad elements

Starters 59 Division 4 (Rated)

Chef and Happy String , Suspense String, Confusing Concatenations, Audible Range, Speciality

October Long 2022 Division 4 (Rated)

Podium Finish, Minimum Pizzas, Building Race

Starters 60 Division 4 (Rated)

Expert Setter, Yet Another Palindrome Problem, Tax in Chefland, Paper Cutting, Palindrome Flipping, Card Removal

Starters 61 Division 4 (Rated)

Minimise LCS, Different Consecutive Characters , Reach on Time, Odd Sum Pair

Starters 62 Division 4 (Rated)

X Jumps, Max minus Min, Test Score

Starters 63 Division 4 (Rated)

Packing Books, Tasty Decisions, Avoid Squares Please

Starters 64 Division 4 (Rated)

Mario and the Broken String, Distinct Colors, Water Consumption

Starters 65 Division 4 (Rated)

Parity, Hackerman

November Long 2022 Division 4 (Rated)

Time Complexity

Starters 66 Division 4 (Rated)

Binary Battles, Squats, Monopoly in Chefland

Starters 75 Division 4 (Rated)

Two Ranges, Saving Taxes, Profit Increment

February Cook-Off 2023 Division 4 (Rated)

Battery Health, Netflix

Starters 81 Division 4 (Unrated)

Divide Pages, Maximum Capacity, Sunny Day

Starters 93 Division 4 (Rated)

Right There, 7 Rings

Starters 123 Division 4 (Rated)

Room Allocation, Algomaniac Finals, Maximise Adjacent Sum

Starters 124 Division 4 (Rated)

Summer Time, Cricket Tournament

Starters 125 Division 4 (Rated)

Overspeeding, 50-50 Rule

Starters 126 Division 4 (Rated)

AC Please, Dice Game 3, Sale

Starters 127 Division 4

The Ides of March, Extreme Basketball

Starters 128 Division 4 (Rated)

Moody Chef, Reach 5 Star

Starters 131 Division 4 (Rated)

Remaining Neighborhoods, Gotta Catch Em All, Dice Deception

Starters 135 Division 4 (Rated)

RCB vs CSK

Starters 139 Division 4 (Rated)

Television Channels

Starters 141 Division 4 (Rated)

Lucky Clover

Starters 193 (Rated)

Count Odd Even Divisors, Rectangle and Square

Starters 208 (Rated)

Spring Cleaning, Alternate Jumps

Total Problems Solved: 515

1127
(Div 4)
★
CodeChef Rating (Highest Rating 1459)
  • 101375 Global Rank
  • 2 Country Rank

Badges

Contest Contender - Gold Badge

Contest Contender - Gold Badge

Received for participating in 50 Contests

Problem Solver - Gold Badge

Problem Solver - Gold Badge

Received for solving 500 Problems

Daily Streak - Silver Badge

Daily Streak - Silver Badge

Received for maintaining a streak of 25 days

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