• Dec 30, 2019

  • Hash tables high space fast speed.
  • S&P has almost quintupled since the low of the 08-09 crisis.
  • I know the # in a URL, but its formal name is anchor or fragment identifier, the subsection to focus to.
  • Escape room up in Big Bear.
  • Among the bay friends, final percentages and rankings were:
  1. frank 58.8
  2. nick 58.8
  3. david 57.1
  4. quique 56.0
  5. art 55.9
  6. diego 55.7
  7. brian 51.2
  8. omar 47.5
  • Approximate payouts:
  • 1st $730
  • 2nd $325
  • 3rd $180
  • 4th $140
  • 5th $115
  • 6th $90
  • 7th $80
  • 8th $70
  • 9th $60
  • 10th $50
  • 1st place comparison:
  • Westgate Supercontest: 59 pts, 58-2-25, 69.4%.
  • South Bay Supercontest: 53 pts, 52-2-31,  62.4%
  • Would have tied for 25th in the full contest.
  • The 9 people who tied for 26th last year each got a payout of $14,844.65.
  • Brainstormed a few more return questions.
  • Practice problems:
  • Improved the 2sum solution. Much faster.
  • https://leetcode.com/problems/remove-nth-node-from-end-of-list. 
  • https://leetcode.com/problems/3sum. 3 sum solution, got it down to O(n^2). Basically solving n 2sum problems.
  • There’s another one “3SumClosest” where instead of summing to 0, you’re finding the triplet that sums closest to an input target. Instead of keeping matches, keep ALL in a hash table then just return the max. Same O(n^2).
  • Another: https://leetcode.com/problems/4sum/. 4sum is the same, just wrap the 3sum solution with another loop around n, the input list. It doesn’t matter if you’re targeting zero or another explicit number with the sum. The general algo is O(n^(k-1)), where k is the number of items in the sum.
  • https://leetcode.com/problems/valid-parentheses. Just tracking opening and closing characters. Easy. Use a stack, loop through once.
• Dec 29, 2019

  • M Night Shyamalan’s Servant is pretty good.
  • Paid Jan rent, full.
  • Called Grayson for his 5th.
  • CFB national championship is gonna be LSU Clemson.
  • MapReduce used to be pretty popular for big data; take a large problem and split it into tasks for a distributed system (map) and then recombine them logically after whatever operations have been performed (reduce).
  • Practice problems:
  • https://leetcode.com/problems/longest-common-prefix/. Easy.
  • Started the array-sum problems. 2sum, 3sum, 4sum, and variations. Will finish later.
  • Drove to big bear for NYE/brobeans.
  • Petty 1st place sbsc lol (62.4%). I finished the season at 51.2%, better than last year at 45.9.
  • Niners beat the seahawks, 1st place NFC.
  • A few requests were deadlocked. It can self-detect, and sentry notifies. Could restart, or just wait for nginx to kill the thread workers.
• Dec 28, 2019

  • Practice leetcode problems.
  • https://leetcode.com/problems/string-to-integer-atoi. Nothing specially really, just checking lot of corner cases.
  • https://leetcode.com/problems/palindrome-number. Very easy.
  • https://leetcode.com/problems/regular-expression-matching/. They need to be clearer than the wildcard will only be in the second position. I was about to program the true way to do it.
  • https://leetcode.com/problems/container-with-most-water. Nailed this one.
  • https://leetcode.com/problems/roman-to-integer/. Easy. Remember, while loops allow you to iterate in desynced fashion, which is common (rather than just `for ind, item in enumerate(array):`. A while loop allows you to jump around in the array, skip 2 items, control your own index for each step, etc. This occurs pretty frequently in logic problems.
  • https://leetcode.com/problems/integer-to-roman. More roman numerals!
  • Went back over the leadership principles, making examples and memorizing each.
  • Watched the second season of You. Loved how much they made fun of LA actors.
  • Remember python’s compound operators. You use += but you can did it with basically everything else, like *= or %= (modulo then define). They’re all the same as x = x * 5, with whatever operator and number you need.
• Dec 27, 2019

  • Transcrypt is a python/js compiler. https://www.transcrypt.org/. You can put python in your html, javascript in your backend, etc. Weird.
  • The vip terminal at lax costs about 5k/yr for membership and >3k/flight. https://theprivatesuite.com/.
  • Bought a straightener. The boar’s hair brush works a bit better for shorter beards. Needs to be ~2″ for this to shine.
  • Nasdaq index is mostly tech focused (unlike dj/spy).
  • Hit up spencer, bonus alex is visiting la in a couple days.
  • Skipped amazon fresh and buying/brining/smoking meat, gonna be in big bear for the next half week.
  • Made this:
  • 
  • Added phil and raj to the paid league.
  • select * from users where email like ‘%WORD%’;
  • insert into league_user_association values (<league_id>, <user_id>);
  • Coke has the same acidity as lemon juice.
  • Run pull sauna meditate.
  • 1000p motorcycle puzzle. 4hrs maybe?
  • The coriolis effect causes large-scale fluids (eg oceans/hurricanes, not toilets/baths) to rotate clockwise in the southern hemisphere and counterclockwise in the northern hemisphere (closer to equator = moving faster).
  • Lynch definitely running for seahawks on sunday. Awesome. AB is apparently working on signing with the saints as well. Terrible. Man needs mental help.
• Dec 26, 2019

  • Placed some small limit orders for option calls. They didn’t execute.
  • Eric got me the athleanx inferno size program, started looking through the website.
  • Supercontest.
  • Odds:
  • 0: 1/32
  • 1: 5/32
  • 2: 10/32
  • 3: 10/32
  • 4: 5/32
  • 5: 1/32
  • Obviously a coin flip is a binomial distribution, just like a dice roll. As n gets large, this approximates Gaussian (normal).
  • Standard deviation of coin flip = 1/(2*sqrt(n))
  • Created ticket: https://gitlab.com/bmahlstedt-group/supercontest/issues/140.
  • Push sauna meditate.
  • Scheduled amazon onsite for mon jan 13.
  • Flew SFO LAX.
  • Ashish called about the NCL telem site.
• Dec 25, 2019

  • Committed lines, submitted picks.
  • Final week 17, we’ll know the season winner on Sunday.
  • This week was a pain in the ass. The iframe table format was completely different for the lines. Different order, different column, etc. The autofetcher didn’t know how to understand any of it. I entered the lines manually.
  • [[u’TITANS’, u’TEXANS*’, u’SUNDAY, DECEMBER 29, 2019 1:25 PM’, u’3.5′], [u’BROWNS’, u’BENGALS*’, u’SUNDAY, DECEMBER 29, 2019 10:00 AM’, u’2.5′], [u’VIKINGS*’, u’BEARS’, u’SUNDAY, DECEMBER 29, 2019 10:00 AM’, u’1′], [u’COLTS’, u’JAGUARS*’, u’SUNDAY, DECEMBER 29, 2019 1:25 PM’, u’3.5′], [u’FALCONS’, u’BUCCANEERS*’, u’SUNDAY, DECEMBER 29, 2019 10:00 AM’, u’0′], [u’COWBOYS*’, u’REDSKINS’, u’SUNDAY, DECEMBER 29, 2019 1:25 PM’, u’11’], [u’SAINTS’, u’PANTHERS*’, u’SUNDAY, DECEMBER 29, 2019 10:00 AM’, u’13’], [u’EAGLES’, u’GIANTS*’, u’SUNDAY, DECEMBER 29, 2019 1:25 PM’, u’4.5′], [u’STEELERS’, u’RAVENS*’, u’SUNDAY, DECEMBER 29, 2019 1:25 PM’, u’2′], [u’BILLS*’, u’JETS’, u’SUNDAY, DECEMBER 29, 2019 10:00 AM’, u’1.5′], [u’PATRIOTS*’, u’DOLPHINS’, u’SUNDAY, DECEMBER 29, 2019 10:00 AM’, u’15.5′], [u’PACKERS’, u’LIONS*’, u’SUNDAY, DECEMBER 29, 2019 10:00 AM’, u’12.5′], [u’CHIEFS*’, u’CHARGERS’, u’SUNDAY, DECEMBER 29, 2019 10:00 AM’, u’8.5′], [u’RAMS*’, u’CARDINALS’, u’SUNDAY, DECEMBER 29, 2019 1:25 PM’, u’3′], [u’49ERS’, u’SEAHAWKS*’, u’SUNDAY, DECEMBER 29, 2019 5:20 PM’, u’3.5′], [u’BRONCOS*’, u’RAIDERS’, u’SUNDAY, DECEMBER 29, 2019 1:25 PM’, u’3′]]
  • dbsession.commits._commit_lines(week_id=34, lines=lines)
  • core.scores.commit_scores()
  • util.email.email_picks_open(season=2019, week=17)
• Dec 24, 2019

  • Happy Hollow Park/Zoo in San Jose.
  • LAMP = linux apache mysql php. I always forget this one. It’s old.
  • Rivian, big ev company.
  • Power rankings (nfl and espn) have the niners 3rd after the saints and ravens.
  • FF ESPN: 5-7. 11/12 PF. 11/12 final rank.
  • FF Yahoo: 5-8. 7/10 PF. 10/10 final rank.
  • Worked with amazon to schedule the date of the onsite. Suggested the second week of Jan.
  • Went over their documentation of the onsite process: https://www.amazon.jobs/en/landing_pages/in-person-interview.
  • Confirmed the citadel coding challenge for Jan 7.
  • Ordered a whiteboard ($18) to practice. My old one was stained/dry.
  • STAR = situation task action result.