Mario Chao

• Username: 4★mario_chao
• Country:  Taiwan
• Student/Professional:Student
• Institution:Hsinchu County American School Zhubei, Taiwan
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2025 (Jul-Dec)2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 11

Current Ratings Graph Old Ratings Graph

1823 (-30)RatingProvisional
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SnackDown 2021 - Online Elimination Round (Rated for all)(2021-12-13 16:30:00)

Global Rank:   373

Cheated in:   

Ratings System Update

(2021-12-13 16:30:00)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

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1823 (+95)RatingProvisional
Rating i Provisional Rating, click to know more

SnackDown 2021 - Online Elimination Round (Rated for all)(2022-12-20 00:00:00)

Global Rank:   373

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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Practice Paths (0)

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Contests (11)

AlgoManiac - Code For Future Division 3 (Rated)

The Rumbling, The Old Saint And Three Questions, Meet In The Median, Say No To Drugs

September Challenge 2021 Division 3 (Rated)

XOR Equal, Shuffling Parities, Airline Restrictions, Travel Pass

September Cook-Off 2021 Division 2

Fake Swaps, Adjacency Hatred, Half Sequence, Zebra Crossing, Cars and Bikes

SnackDown 2021 - Online Qualifiers

Lucky Number, Maximum Number Of Distinct Elements

CodeChef Starters 11 Division 2 (Rated)

Positive Spewing, The Grid Fill Problem, Find the Direction, Obtain the Sum, The Two Dishes

CodeChef Starters 12 Division 2 (Unrated)

Good Weather, Maximum Points, Make it Divisible

CodeChef Starters 13 Division 2 (Rated)

Add and Divide, Chef in Vaccination Queue, Maximum Light Up, The Preparations, Magical Doors

CodeChef Starters 14 Division 2 (Unrated)

FIXFIX, RCB and Playoffs, Diagonal movement, Task Times, Odd GCD

October Challenge 2021 Division 2 (Unrated)

Longest AND Subarray, Digit Removal, MEX-OR

September Lunchtime 2021 Division 2

Balanced and Unique Arrays, Yet another SOD problem

CodeChef Starters 16 Division 2 (Unrated)

Professor And Directions, Pass or Fail, Chef And Salary Pay, Chef and Magical Steps

October Lunchtime 2021 Division 2

Alternating Work Days, Chef and Water Car, Exactly N plus 1 Values, Problem Category

SnackDown 2021 - Online Round 1A

Min Max LCM, Dance Moves, Round Robin Ranks

SnackDown 2021 - Online Round 1B

Queens Placement , Largest Laddu, Help Nishant

November Challenge 2021 Division 2 (Unrated)

Hill Sequence

SnackDown 2021 - Online Pre-Elimination

Non-Decreasing Subsequence of size K, Product Pain

CodeChef Starters 18 Division 2 (Unrated)

Make them equal, Back to Campus, Palindromic Binary Numbers, Compare those strings

C.O.D.E.R.S Division 2 (Rated)

The One On The Last Night, The One with Russ, The One with All the Candy, The One Where It All Began, The One with Ross Wedding

December Challenge 2021 Division 2 (Unrated)

Rock Paper Scissors, Squares Counting, Utkarsh and Placement tests, List of Lists, Pyramid Traversal, Valleys and Hills, Check Mate, Increasing String

January Long 2022 - I, Division 2 (Unrated)

Keplers Law, Prime in a binary string, Retrieve back the Array, Covid Spread

SnackDown 2021 - Final Round Parallel Contest (Unrated)

Ones Guessing

Total Problems Solved: 117