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#include <stdio.h>          /* printf()                 */
#include <stdlib.h>         /* exit(), malloc(), free() */
#include <sys/types.h>      /* key_t, sem_t, pid_t      */
#include <sys/shm.h>        /* shmat(), IPC_RMID        */
#include <errno.h>          /* errno, ECHILD            */
#include <semaphore.h>      /* sem_open(), sem_destroy(), sem_wait().. */
#include <fcntl.h>          /* O_CREAT, O_EXEC          */


int main (int argc, char **argv){

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Sorting Algorithms

• Bubble Sort
• Insertion Sort
• Shell Sort
• Merge Sort
• Quick Sort
• HeapSort
• BitSort

Data Structure

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#include <iostream>
#include <string>
#include <map>
#include <vector>

using namespace std;

struct Node {
  char ch;
  map<char, Node*> children;

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"""
Implement Trie in Python.

References:
http://www.geeksforgeeks.org/trie-delete/
"""


def make_trie(*args):
    """

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package main

import (
  "encoding/json"
  "fmt"
  "strings"
  "github.com/garyburd/redigo/redis"
  "github.com/ant0ine/go-json-rest/rest"
  "log"
  "net/http"

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//
//  go get github.com/lib/pq
//
package main

import (
  _ "github.com/lib/pq"
  "database/sql"
  "fmt"
  "log"

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package main

import (
	"bufio"
	"fmt"
	"log"
	"os"
	"strings"
)

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# Build dependencies for OpenResty.
sudo apt-get install build-essential libpcre3-dev libssl-dev libgeoip-dev

# Install standard Nginx first so that you get the relevant service scripts installed too
sudo apt-get install nginx

# If you want to access Postgres via Nginx
sudo apt-get install libpq-dev

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This example is based on having a cascading setup, where you have a single master, a single "primary" slave, and cascading slaves which are being replicated from the primary slave. For an example of this setup, check out http://bartek.im/blog/2012/12/04/postgresql-92-streaming-primer.html

On the existing master, if accessible, stop postgres.

$ sudo service postgresql stop

And better to be safe than sorry. We can't have two masters running. (I only use this in an automated script. If you're doing this manually, you'd know if it was shutoff)

$ kill -9 `sudo cat /var/lib/postgresql/9.2/main/postmaster.pid | head -n 1` &> /dev/null

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/*
        Original idea from
        http://www.acloudtree.com/how-to-shove-data-into-postgres-using-goroutinesgophers-and-golang/
*/
package main

import (
        "log"
        "time"
        "os"