"A computer is a stupid machine with the ability to do incredibly smart things. A computer programmer is a smart person with the ability to do incredibly stupid things."

"The more you know, the more you know you know nothing."

Authored Problems:

• The Contest Contest 1
  • A Typical Codeforces Problem 5pp
  • A Typical CCC Senior Problem 10pp
  • A Typical WAC Problem 15pp
  • A Typical YAC Problem 25pp
  • A Typical CCO Problem 20pp
  • A Typical DMOPC Problem 30pp
• Cheerio 4B (private contest)
• Cheerio 4 (private contest)
• Cheerio 3 (Mock CCC)
  • Everything Array 12pp
  • Train Network 20pp
• Cheerio 2
  • Cereal Boxes 3pp
  • Digits 5pp
  • Subsequence Queries 7pp
• Cheerio 1 Junior
  • Pronounceable Words 3pp
  • Arithmetic Sequence 10pp
• Cheerio 1 Senior
  • Going to School 5pp
  • School Expansion 7pp
  • Stock Trading 7pp
  • Mystery Boxes 10pp
  • Coin Game 15pp
• An Animal Contest 6
  • Buffet 20pp
  • Rock Painting 20pp
• An Animal Contest 5
  • Counting Rectangles 15pp
• Tree Paths 12pp

Milestones:

• September 20, 2020: 100 points
• October 8, 2020: 200 points
• October 25, 2020: 250 points
• November 15, 2020: 300 points
• February 2, 2021: 350 points
• April 12, 2021: 400 points
• December 28, 2021: 450 points

• October 31, 2020: Top 1000
• November 20, 2020: Top 800
• December 4, 2020: Top 700
• February 2, 2021: Top 600
• March 10, 2021: Top 500
• April 7, 2021: Top 400
• October 17, 2021: Top 300

• September 16, 2020: First 12 pointer: https://dmoj.ca/problem/ccc13s3
• September 18, 2020: First 10 pointer: https://dmoj.ca/problem/ccc11s3
• October 31, 2020: First 15 pointer: https://dmoj.ca/problem/dmopc14c4p6
• March 10, 2021: First 17 pointer: https://dmoj.ca/problem/lazy
• April 6, 2021: First 20 pointer: https://dmoj.ca/problem/dmpg18g6

• November 13, 2020: 200 problems solved
• March 5, 2021: 300 problems solved
• September 29, 2021: 400 problems solved
• February 15, 2022: 500 problems solved

• November 24, 2021: Number of problems solved (444) = Total points (444.39)
• December 6, 2021: Authored first problem (https://dmoj.ca/problem/treepaths)

Other Interesting Stuff:

• Unknown syscall disallowed: https://dmoj.ca/submission/3206480
• Finding primes up to 4.27 billion: https://dmoj.ca/submission/3550081
• Very long problem statement: https://dmoj.ca/problem/cccjqrp5
• Very short editorial: https://dmoj.ca/problem/ccc11s2/editorial

Extremely Upvoted Comments:

• (161): https://dmoj.ca/problem/ccoqr16p3#comment-4093
• (142): https://dmoj.ca/problem/ccc03s3#comment-219
• (135): https://dmoj.ca/problem/scroll#comment-1446
• (130): https://dmoj.ca/problem/ccc10j1#comment-2736

Extremely Downvoted Comments:

• (-10021): https://dmoj.ca/problem/cco15p2#comment-15527
• (-170): https://dmoj.ca/problem/ccc00j1#comment-9523
• (-136): https://dmoj.ca/problem/ccc20s5#comment-11776
• (-126): https://dmoj.ca/contest/dmopc21c1#comment-16004

Time Complexity Guide

~N < \infty \; \Rightarrow \; \mathcal{O}(1)~

~N \le 10^{1\,000\,000} \; \Rightarrow \; \mathcal{O}(\log{N})~

~N \le 10^{14} \; \Rightarrow \; \mathcal{O}(\sqrt{N})~

~N \le 2\times10^7 \; \Rightarrow \; \mathcal{O}(N)~

~N \le 10^6 \; \Rightarrow \; \mathcal{O}(N\log{N})~

~N \le 100\,000 \; \Rightarrow \; \mathcal{O}(N\sqrt{N})~

~N \le 5\,000 \; \Rightarrow \; \mathcal{O}(N^2)~

~N \le 1\,500 \; \Rightarrow \; \mathcal{O}(N^2\log{N})~

~N \le 500 \; \Rightarrow \; \mathcal{O}(N^2\log^2{N})~

~N \le 300 \; \Rightarrow \; \mathcal{O}(N^3)~

~N \le 70 \; \Rightarrow \; \mathcal{O}(N^4)~

~N \le 24 \; \Rightarrow \; \mathcal{O}(2^N)~

~N \le 15 \; \Rightarrow \; \mathcal{O}(3^N)~

~N \le 10 \; \Rightarrow \; \mathcal{O}(N!)~

~N \le 8 \; \Rightarrow \; \mathcal{O}(N^N)~

~2^{2^{2^2}} = 65536~

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