User ThingExplainer

From Milliken Mills H.S., Olympiads School, Mahou Shoujou, University of Waterloo

About

started programming competitively on July 4, 2020

~~temporarily~~ retired due to school (ib workload rolling through ♿)

discord: ThingExplainer#3793

codeforces: https://codeforces.com/profile/br0mabs

olympiads school comp contest lvl 1 2 3 4 retired kid

can't do dynamic programming to save my life 😔

ki ki ki, kimi no koto, WA WA WA TLE TLE TLE 😤

imagine fast submissions this meme was made by slow ass java user 😒 (Not to be anymore since i'm switching to C++ 😎)

started the transition to C++ from Java. (August 5, 2020)

my main language is now C++. The transition has been completed. (August 16, 2020 - 11 days)

do homework... or do dmoj? 🤔

gotta get better at contests no more 🐒 mode allowed

246-day streak broken due to timezones :blobsob:

mainly a codeforces user now 🤓

can't win any t-shirts because i am monke

Authored and co-authored problems: (sorted in order of points)

https://dmoj.ca/problem/aac2p1 (5p)
https://dmoj.ca/problem/aac4p1 (5p)
https://dmoj.ca/problem/aac1p3 (7p)
https://dmoj.ca/problem/monkeybread (7p)
https://dmoj.ca/problem/aac2p3 (10p)
https://dmoj.ca/problem/carnivalgame (10p)
https://dmoj.ca/problem/aac4p2 (10p)
https://dmoj.ca/problem/aac4p4 (10p)
https://dmoj.ca/problem/koalaball (12p)
https://dmoj.ca/problem/aac5p4 (12p)

My contests:

CCC senior scores

2021: 50 (1 point from honour roll 😠)

2022: 36

2023: 42 (finally got that honour roll)

Relevant Gamers (not in any particular order)

teacher: bruce ORZ

mmhs gamer: Tmaswang03 CHADMAS WANG

SHEN BOI: danbin2

omg!!!! dmoj admin!!!!: Riolku orz helping to run AAC and teaching me a lot of stuff about contest setting, waterloo cs chad

grade 12 milliken gamer: pblpbl bwars god, waterloo cs chad

tohrus: Potatoritos is my dmoj buddy

BC chad: Evang lamsiu21 NruceBan StuffExplainer this kid USACO gold first try, reached expert on codeforces, his graph is going 🚀 (go check him out) (did I mention he's in grade 9?)

grade 12 chad: samliu12 samliu11 i want to be usaco platinum and reach master like him, waterloo cs chad

computer contest lvl 3 chad: WilliamWu277 TROPICAL 🍹 BANANA 🍌

another computer contest lvl 3 chad: danielz1000 orz expert on codeforces

chadam: Encodeous

king of blues: Averesoft orz for making profile collab

YellowdiChen: YidiChen

'06 macs kid(s): AZron why the hell are you guys so good

Grade 8 agribusiness connoisseur: Tony1234 tonny le monke

ajay bjay cjay djay ejay fjay gjay hjay ijay jjay kjay ljay mjay njay ojay pjay qjay rjay: sjay05 orzjay lvl 4 chad

96 avg in gr11 ib English :orz: rexn

cylinder: b0806 minecraft pvp god and osu legend go have a look https://osu.ppy.sh/users/10964252

sqare: potato_nuggetz ctf god

football: slurp made my discord pfp

eneneneneneneners: Enners

uwu aaron-sama uwu: sovu1473

bahli bahbah: bigalthefirst1

BEESER: peterzhou561

tomorrowbrian: todaybrian carried in CMIMC optimization round and picoCTF

Pual: psun256

MMHS gamer: brien

Simps

ROMAN BONG: SparklMastr

Working on

learning data structures + dynamic programming practice + graph theory practice

contest practice on codeforces

getting good at problem-solving—solving problems without help

doing lvl3 and lvl4 homework problems

piddddgy's suggested dp problems

To finish (some day...)

https://dmoj.ca/problem/gfssoc2j2 (test cases 3-10 wrong)
https://dmoj.ca/problem/pathfind (tle'd and mle'd)
https://dmoj.ca/problem/fibonacci (learn matrices first)
https://dmoj.ca/problem/dmopc14c4p3 (tweak the program a bit idk how)

Goals

all accomplishments acheived at time of writing, i am washed now

DMOJ Related

[X] Grey
[X] Green
[X] Blue
[X] Pourpel
[X] Yellow
[X] Yellow within a year of starting competitive programming (By July 3, 2021)
Red
Target

[X] Top 1000 based on contest ranking on dmoj
[X] Top 500 based on contest ranking on dmoj
Top 100 based on contest ranking on dmoj

[X] Solve 300 problems
[X] Solve 400 problems
[X] Solve 500 problems
[X] Solve 600 problems
[X] Solve 700 problems
Solve 800 problems
[X] Reach 300 weighted pp
[X] Reach 400 weighted pp
500 weighted pp

[X] Top 1000 based on points in dmoj before solving 100 problems
[X] Top 500 based on points in dmoj
[X] Top 400 based on points in dmoj
[X] Top 300 based on points in dmoj
[X] Top 200 in dmoj based on points
Top 100 in dmoj based on points

[X] Top 100 problems 10pp+
Top 100 problems 15pp+

[X] 1/3 AC rate
[X] Consistently do 7pp problems and hard 5pp problems
Consistently do 10pp+ problems without help
Get consistent at solving 7pp problems (given a random problem worth 7pp, solve it in less than an hour)

CCC Related

[X] Top 25% of contestants in senior (distinction)
Senior honour roll
Invited to CCORZ

Silver medal in CCORZ
Gold medal in CCORZ

IOI Related

Go to IOI ?????
Bronze in IOI
Silver in IOI
Gold in IOI
Win IOI (wtf?)

USACO Related

[X] USACO silver
USACO gold
USACO platinum

[X] AK USACO bronze
AK USACO silver
AK USACO gold
AK USACO platinum

Codeforces Related

[X] Newbie on codeforces
[X] Pupil on codeforces
[X] Specialist on codeforces
[X] Expert on codeforces
Candidate master on codeforces
Master on codeforces
International master on codeforces
Grandmaster on codeforces
International grandmaster on codeforces
Legendary grandmaster on codeforces

Olympiads School Related

[X] Join olympiads computer contest lvl 1
[X] Join olympiads computer contest lvl 2
[X] Join olympiads computer contest lvl 3
[X] Join olympiads computer contest lvl 4
Join olympiads computer contest lvl 5
Join olympiads computer contest lvl 6
Join olympiads computer contest lvl 7

Knowledge Related

[X] Learn (basic) dynamic programming
Learn how to optimize algorithms
[X] Learn basic graph theory (bfs, dfs, dijkstra)
[X] Learn intermediate graph theory (kruskal, bellman-ford, topological sort, floyd-warshall, etc.)
Learn geometry in coding
Learn string algorithms
[X] Learn interval dp
[X] Learn data structures (set, map, heaps, trees, etc.)
Learn advanced data structures (binary search trees, tries, treaps, segment trees, sparse tables, etc.)

Miscellaneous

[X] Finish all the problems in the question suggestion challenge list before the end of the year (2020)
Solve at least a problem a day, for a whole year
[X] Eventually switch to C++
[X] Write a contest

Achievements

July 3, 2020 - acquired dmoj account
July 3, 2020 - Hello World done
July 4, 2020 - 3pp problem solved
July 4, 2020 - 5pp problem answered
July 5, 2020 - 7pp problem worked out
July 12, 2020 - 100 weighted pp
July 2020 - joined olympiads computer contest level 1
July 15, 2020 - first dp problem (https://dmoj.ca/problem/dpd) solved
July 16, 2020 - 10 pp problem completed
July 19, 2020 - first graph theory problem (https://dmoj.ca/problem/vmss7wc16c3p2) solved
July 22, 2020 - 50 problems solved
July 23, 2020 - 12pp problem accomplished
August 2, 2020 - 15pp problem perfected
August 4, 2020 - 3 digit based on points (top 1000)
August 4, 2020 - 200 weighted pp
August 5, 2020 - first C++ program
August 10, 2020 - first contest (https://dmoj.ca/contest/wac5) written
August 11, 2020 - 100 problems solved
August 11, 2020 - IM BLUE DA BA DEE DA BA DAA
September 2020 - joined olympiads computer contest level 2
September 4, 2020 - wrote my first contest on codeforces
September 18, 2020 - 200 problems solved
September 2020 - 300 weighted pp
September 2020 - joined olympiads computer contest level 3
October 28, 2020 - 17pp problem computed
November 1, 2020 - 20pp problem unraveled
November 2, 2020 - 300 problems solved
November 9, 2020 - top 100 problems 10pp+
November 10, 2020 - top 500 on dmoj based on points
November 2020 - joined olympiads computer contest level 4
December 7, 2020 - top 100 in a DMOPC contest (https://dmoj.ca/contest/dmopc20c2)
December 13, 2020 - top 400 based on points on dmoj
December 13, 2020 - 400 points
December 18, 2020 - AK'd a USACO bronze contest, promoted to silver
December 19, 2020 - 400 problems solved on dmoj
December 30, 2020 - Reached pupil on codeforces
January 17, 2021 - 30pp problem deciphered
January 25, 2021 - top 1000 on dmoj based on contest rating
January 29, 2021 - top 300 on dmoj based on points
February 1, 2021 - POURPEL
February 8, 2021 - 500 problems solved on dmoj
February 8, 2021 - top 500 on dmoj based on contest rating
February 17, 2021 - First CCC senior, 50 points
March 2021 - The PP bubble burst, lost some points
March 6, 2021 - Reached specialist on codeforces
March 17, 2021 - Became a problem setter on dmoj!
March 22, 2021 - 600 problems solved on dmoj
April 2021 - Set my first problem on a contest (and my first problem ever)!
April 26, 2021 - Reached yellow within a year!
May 2, 2021 - top 200 on dmoj based on points
May 2021 - 700 problems solved on dmoj
June 28, 2021 - 727 problems solved on dmoj :osuhow:
July 11, 2021 - Reached expert on codeforces!

Templates

OP Fast IO

OP Fast IO 2 orz samliu12

C++

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#define INF 0x3f3f3f3f
#define LLINF 0x3f3f3f3f3f3f3f3f
#define uset unordered_set
#define umap unordered_map
#define pb push_back
#define ms(a,b) memset(a,b,sizeof(a));
#define mp make_pair
#define fi first
#define se second
#define double long double
using namespace std;
using namespace __gnu_pbds;
typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> oset;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef pair<double,double> pdd;
int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);

}

Random

https://dmoj.ca/submission/3448009 (i have the only TLE text submission lol)

https://dmoj.ca/src/3108864 (solved a problem using #define lmao)

https://dmoj.ca/problem/seed3 (problem with all downvoted comments)

https://dmoj.ca/problem/wc15c2s4 (click for a surprise)

https://dmoj.ca/submission/3454229 (funny number gets full points on piggy) (only osu players will understand this joke)

https://dmoj.ca/problem/dmopc21c10p5 may or may not be free 20 points

Inting and malding on meme problems? check out Tomorrow's user page

Funny problem combos:

https://dmoj.ca/problem/treepractice1 and after raging unleash your anger on https://dmoj.ca/problem/dwite10c3p4

Did you know?

Pressing Ctrl+Enter on the edit profile page saves your updates 😮

Show contest rating names by Plasmatic

Highlight active participants in yellow (and show start times) (credit goes to Bob661161616)

$(document).ready(function(){$('td.user-name').map((i,td) => {if (td.children && td.children[1].innerText!=='Participation ended.') {$(td).css('background-color','#ffff00');const a=td.children[0].children[0];a.innerText=`${a.innerText} (${td.children[1].children[0].title})`;}});});

Show hidden comments (credit goes to Potatoritos for showing me this)

$(k=>$("a[href^='javascript:comment_show_content(']").each((i,j)=>comment_show_content(parseInt(j.href.replace(/^\D+/g,"")))));

Show when each participant started in a contest (credit again to Potatoritos)

$(".start-time").each(function(){this.style.display = "block";if(this.innerHTML=="Participation ended.")this.style.color="#aaa"});

Show number of participants when on the standings page of a contest (credit to ochen1) (I can't paste the code here because imba d at formatting, go visit him)

Show anime girls 🥵

$(".anime-img").show();

Also used some of d's userscript

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