dctucker

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dctucker

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

Array

Definition:

• Stores data elements based on an sequential, most commonly 0 based, index.
• Based on tuples from set theory.

dctucker

# Usage:
# source tabcolor.sh 96 96 192

# iTerm2 window/tab color commands
#   Requires iTerm2 >= Build 1.0.0.20110804
#   http://code.google.com/p/iterm2/wiki/ProprietaryEscapeCodes
rgb() {
    echo -ne "\033]6;1;bg;red;brightness;$1\a"
    echo -ne "\033]6;1;bg;green;brightness;$2\a"
    echo -ne "\033]6;1;bg;blue;brightness;$3\a"

dctucker

DROP TABLE IF EXISTS calendar;
CREATE TABLE calendar (
        id                      INTEGER PRIMARY KEY,  -- year*10000+month*100+day
        date                    DATE NOT NULL,
        year                    INTEGER NOT NULL,
        month                   INTEGER UNSIGNED NOT NULL, -- 1 to 12
        day                     INTEGER UNSIGNED NOT NULL, -- 1 to 31
        quarter                 INTEGER UNSIGNED NOT NULL, -- 1 to 4
        week                    INTEGER UNSIGNED NOT NULL, -- 1 to 52/53
        dayofweek               INTEGER UNSIGNED NOT NULL, -- 1 to 7