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#!/bin/bash

# Install
brew install llvm
brew install libomp

# Compile
# clang++ test.cpp -o test -Xpreprocessor -fopenmp -lomp

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Saved for posterity. You're welcome :)

• CME 200 Answer Book
• CME 200 Notes

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Umbrella Challenge

Given a number of people N and an array of integers, each one representing the amount of people a type of umbrella can handle, output the minimum number of umbrellas needed to handle N people.

No umbrella could have left spaces. Which means if a umbrella can handle 2 people, there should be 2 people under it.

If there's no solution, return -1.

Examples

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Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?
• Constraints
  • Mainly identify traffic and data handling constraints at scale.
  • Scale of the system such as requests per second, requests types, data written per second, data read per second)

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1. High-Level Design

Key Components

The key components of the system are:

1. Frontend: The web and mobile applications that users interact with to select and navigate routes.
2. Backend API: The API that provides the predefined routes to the frontend and stores completed routes for users.
3. User service: The service that handles user operations. Such as following and viewing other users and modifying user profiles
4. Route service: The service that handles route operations. Such as creating, updating, and deleting routes.
5. Real-time location tracking service: The service that tracks the position of other users navigating the same route in real-time.

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Design Systems

A Design System isn’t a Project. It’s a Product, Serving Products.: Shifting Focus from Design and Development to Managing and Marketing a System

Defining Design Systems: Getting to the Root of What Your System Really Is

A Design System’s Reach: Practical Levels to Discuss How Broadly Your System Applies

Design Systems are for People: A transcript of Jina Anne's presentation for Design Systems Coalition NYC

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See the original quiz here

Question 1

var foo = function foo() {
    console.log(foo === foo);  
};
foo();

Answer: true

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// Solves this problem: http://1mage.us/1339.

package main

import (
	"fmt"
	"math"
	"math/rand"
	"sort"

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import z3

def add_constraints(s, inp):
    for digit in inp:
        s.add(digit > 0)
        s.add(digit < 200)

    b = [(6,10,11),(9,12,13),(15,16,17),(6,9,15),(10,12,16),(11,13,17), (6,12,17),(11,12,15)]
    a = [(1,2,3),(4,5,6),(7,8,9),(1,4,7),(2,5,8),(3,6,9), (1,5,9),(3,5,6)]
    c = [(18,7,8),(19,20,14),(21,22,23),(18,19,21),(7,20,22),(8,14,23), (18,20,23),(21,20,8)]

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OCaml build tools: What would you change?

Having a coherent OCaml toolchain distribution.

Improve cross compilation experience

Improve docs

more integration, e.g. Rust's cargo style