carlosgaldino

"A little bit of slope makes up for a lot of y-intercept"

01/13/2012. From a lecture by Professor John Ousterhout at Stanford, class CS140

Here's today's thought for the weekend. A little bit of slope makes up for a lot of Y-intercept.

[Laughter]

carlosgaldino

// Diamond Kata

fn main() {
    let character = &std::env::args().collect::<Vec<String>>()[1];
    diamond(character.chars().next().unwrap() as u8)
}

fn diamond(c: u8) {
    let max_rows = c - b'A';
    let mut rows = Vec::with_capacity(max_rows as usize);

carlosgaldino

// builds the tree for the secret stage for the binary bomb
// http://blog.carlosgaldino.com/defusing-a-binary-bomb-with-gdb.html
#include <stdio.h>
#include <stdlib.h>

struct node {
    int data;
    struct node *left;
    struct node *right;
};

carlosgaldino

-module(msort).
-export([sort/1]).

sort([]) ->
    [];
sort([X]) ->
    [X];
sort(List) ->
    {Xs, Ys} = split(List),
    merge(sort(Xs), sort(Ys)).

carlosgaldino

struct Person {
    name: String,
    age: u8
}

fn main() {
    // only works if compiled with `--test` flag.
    // let p = Person::create_with(String::from("Carlos"), 26);
    let p = Person { name: String::from("Carlos"), age: 26 };
    println!("{} {}", p.name, p.age);

carlosgaldino

#include <stdio.h>

/* Bitwise integer addition */
int plus(int x, int y)
{
    int result = x ^ y;
    int carry = (x & y) << 1;

    if (carry != 0)
        return plus(result, carry);

carlosgaldino

#include <stdio.h>

int bit_and(int x, int y)
{
    return ~(~x | ~y);
}

int main(int argc, char **argv)
{
    printf("%.8x\n", bit_and(6, 5));

carlosgaldino

def flatten(arr)
  out = []

  arr.each do |a|
    if a.is_a?(Array)
      out += flatten(a)
    else
      out << a
    end
  end

carlosgaldino

lengthOf x
  | length x == 0 = "0"
  | otherwise = length x
  
  {--
  lengthOf.hs:3:17:
    Couldn't match expected type `[Char]' with actual type `Int'
    In the return type of a call of `length'
    In the expression: length x
    In an equation for `lengthOf':

carlosgaldino

Keybase proof

I hereby claim:

• I am carlosgaldino on github.
• I am carlosgaldino (https://keybase.io/carlosgaldino) on keybase.
• I have a public key whose fingerprint is 761C C1E1 ED5E 9CE0 611D ECA8 24D3 CE8E 2906 1EF5

To claim this, I am signing this object: