fredthekid

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.

fredthekid

from collections import deque
# Definition for a binary tree node.
# class TreeNode(object):
#     def __init__(self, x):
#         self.val = x
#         self.left = None
#         self.right = None

class Codec:

fredthekid

After Reading 126import.txt: 
1+1i
2+2i
3.3+3.4i
4.4-4.5i
-5.5-5.6i
-6+0i
0+7i
0-8i

fredthekid

/* Add this line to /L5_Application/Source/terminal.cpp
 * cp.addHandler(taskStartSuspend, "task", "Watchdog HW");
 *
 * Add this line to /L5_Application/handlers.hpp
 * CMD_HANDLER_FUNC(taskStartSuspend);
 *
 * Add this function to L2_Drivers/src/rtc.c
 * const char* myTimeFunction(void)
 * {
 *    time_t rawtime;

fredthekid

SemaphoreHandle_t buttonSemaphore = NULL;

void port2Pin6Init()
{
    uint32_t pin6 = 1 << 6;
    LPC_GPIO2->FIODIR &= ~(pin6);
}

void port6ButtonPressInterrupt()
{

fredthekid

typedef enum
{
    invalid,
    up, // z is positive
    down, //z is negative
    left, //x is negative
    right, // x is positive
    front, //y is positive
    back, //y is negative

fredthekid

void t1(void *p)
{
    while(1)
    {
        uart0_puts("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
        vTaskSuspend(0);
    }
}

void t2(void *p)

fredthekid

//I2C Assignment
//Created By: Fred Sun
//Worked with Noe Quintero

//ADDITIONAL COMMENTS:
//contains only ADDITIONALLY ADDED code for the I2C assignment
//contains code added to i2c_base.hpp/cpp, i2c2.hpp/cpp, terminal.cpp, handlers.hpp/cpp, and "a file I created".hpp/cpp

//Start of functions and variables added to i2c_base.hpp
//Slave initialization function

fredthekid

// Code contains files that are part of 5 separate files in my workspace.
// I believe the parts that are more important for checking is "Start of handlers.cpp" and "Start of "the file I made" .cpp"
// P.S. although it looks long, it is essentially the length divided by half. uart2 and uart3 have pretty much the same stuff

//Start of "the file I made" .cpp and .hpp code
//UART2 HW Headers
void initUART2();
void uart2Baud(uint32_t baudRate);
bool uart2SendByte(char send);
char uart2GetByte(void);

fredthekid

//Function headers
void flashSpiInit();
char spiGiveAndTake(char send);
void read512BytesFlashMemory();
void readManufacAndDeviceID();
void readFlashStatusReg();
void readGoodStuff();

//initialize SSP1
void flashSpiInit()