kYroL01

/* -*- compile-command: "gcc -Wall -pedantic -g3 server.c -o server" -*- */

/**
   TCP server implementation

   1. Create a TCP socket.
   2. bind(),   Bind the socket to server address.
   3. listen(), Put the server socket in a passive mode, it waits for the client to make a connection
   4. accept(), Connection is established between client and server, ready to transfer data.
   5. go back to Step 3.

kYroL01

/* -*- compile-command: "gcc -Wall -pedantic -g3 client.c -o client" -*- */

/**
   TCP client implementation

   1. Create TCP socket.
   2. connect() Connect newly created client socket to server.
**/

#include <stdio.h>

kYroL01

func twoSum(nums []int, target int) []int {
  var tempDict = make(map[int]int)
	for key, value := range nums {
	  if _, ok := tempDict[value]; ok{
		  return []int{tempDict[value], key}
		}
		tempDict[target-value] = key
	}
	return []int{}
}

kYroL01

/*
Algorithm
- if a node is NULL or equal p or q, we return it
- if not, we traverse the left and right subtree until we return a node, assigning to bool value RetLeft or RetRight
- Then we check if we have to return the node (RetLeft and RetRight are both != NULL), or only left or right
- The LCA is of course the node with RetLeft AND RetRight != NULL
*?

/**
 * Definition for a binary tree node.

kYroL01

/**
Algorithm

- Start traversing the tree from the root node.
- If both p and q are < root, then continue to left subtree and starting step 1.
- If both p and q are > root, then continue to right subtree and starting step 1.
- If both step 2 and step 3 are not true, we have found the LCA for p and q, and we return it
*/

/**

kYroL01

package main

import (
	"fmt"
	"time"
	"strconv"
	"strings"
)

func track(msg string) (string, time.Time) {

kYroL01

/* -*- compile-command: "gcc -Wall -pedantic -g3 dir_cleaner.c -o dir_cleaner" -*- */
#define _XOPEN_SOURCE 500
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <ftw.h>
#include <dirent.h>
#include <unistd.h>

kYroL01

#include <stdio.h>
#include <stdlib.h>
#include <uv.h>

//based on https://gist.githubusercontent.com/snatchev/5255976/
//raw/8392c42d719bb775053036e32b21affdf932c1b7/libuv-tcp-client.c
//which was based on libuv 0.1, there is considerable difference there.
static void on_close(uv_handle_t* handle);
static void on_connect(uv_connect_t* req, int status);
static void on_write(uv_write_t* req, int status);

kYroL01

/**
* Take the URL of remote pcap from command line and download the file to disk
* It check if the extension is allowed (pcap-cap-pcapng)
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <curl/curl.h>

#define FILENAME_LEN 1000

kYroL01

<?php

$sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
socket_bind($sock, '0.0.0.0', 10000);

for (;;) {
    socket_recvfrom($sock, $message, 1024, 0, $ip, $port);
    $reply = str_rot13($message);
    socket_sendto($sock, $reply, strlen($reply), 0, $ip, $port);
}