Problem of the Day -- Open Random Image

Open Random Image

Welcome back from a thrilling weekend! I hope everyone is pumped for Monday. If not maybe today's problem will bring you a quick laugh.

Today is my first day working at Imgur. In honor of my first day, today's Problem of the Day will be to create a program that opens up a random Imgur image every time it is run. To get a random image simply generate a random 5 or 7 character alphanumeric string. Then append that string to "http://imgur.com/gallery/" Here are two examples:

vvdBmro -> http://imgur.com/gallery/vvdBmro
Gy6PK -> http://imgur.com/gallery/Gy6PK

Note: Your program should actually open the image in a browser and not just print out the string.

Permalink: http://problemotd.com/problem/open-random-image/

Comments:

jedrek - 10 years, 7 months ago

Actionscript 3:

package {

    import flash.net.URLRequest;
    import flash.net.navigateToURL;

    public class Test {

        public function Test() {

            var urlLength:int = (Math.random() > 0.5) ? 7 : 5;
            var urlString:String = '';

            for (var i:int = 0; i < urlLength; i++) {

                var code:int = Math.round(Math.random() * (26 + 26 + 10));

                code = (code >= 10) ? code + 54 : code + 48;
                code = (code > 90) ? code + 7 : code;

                urlString += String.fromCharCode(code);

            }

            trace(urlString)

            navigateToURL(new URLRequest('http://imgur.com/gallery/' + urlString));
        }



    }

}

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D - 10 years, 7 months ago

Python 3. Needs the "open" command (works on Mac OS X).

#!/usr/bin/env python3
import random
import subprocess

URL = 'http://imgur.com/gallery/'
CHARS = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'

nchars = random.choice([5, 7])
url = URL + ''.join(random.choice(CHARS) for _ in range(nchars))
subprocess.call(['open', url])

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Dustin - 10 years, 7 months ago

Built with Python 2.7 and Flask. For 5 characters goto 127.0.0.1/5 For 7 characters goto 127.0.0.1/7

import random, string 
from flask import Flask, redirect

app = Flask(__name__)

@app.route('/<int:characters>')
def imgur(characters):
  if characters not in [5,7]:
    return "You can only enter 5,7"
  random_string = ''.join(random.choice(string.letters + string.digits) for _ in range(characters))
  return redirect("http://imgur.com/gallery/" + random_string, code=302)

if __name__ == '__main__':
  app.run()

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duddles - 10 years, 7 months ago

Congrats on the new job!

def open_random_image():
    counter = 0
    while True:
        alphanumeric = '0123456789' + string.lowercase
        string_length = random.choice([5,7])
        l = list('http://imgur.com/gallery/')
        for i in xrange(string_length):
            char = random.choice(alphanumeric)
            if not char.isdigit() and random.random() < 0.5:
                char = char.upper()
            l.append(char)

        url = ''.join([str(i) for i in l])

        r = requests.get(url)
        soup = bs(r.text)
        title = str(soup.title)
        if title != '<title>    imgur: the simple 404 page</title>':
            break
        counter += 1
        if counter > 10000:
            break
    print 'Found a valid url after {} tries'.format(counter)
    webbrowser.open_new(url)

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duddles - 10 years, 7 months ago

forgot the imports:

from bs4 import BeautifulSoup as bs
import requests
import webbrowser

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Anonymous - 10 years, 7 months ago
Cool, didn't know about "webbrowser".

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duddles - 10 years, 7 months ago

I actually learned about it from this site when someone used it for the digital typewriter PotD!

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Max Burstein - 10 years, 7 months ago

Thanks!

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D - 10 years, 7 months ago

And now in J!

urlprefix=: 'http://imgur.com/gallery/'
chars=: '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'

browse_j_ urlprefix , chars {~ ? (({~ ?@#) 5 7) $ # chars

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keemz - 10 years, 7 months ago


import random
import webbrowser
import urllib2
from urllib2 import URLError

pool = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
imgStr = ""
url = ""
while True:
    rangeLen = random.choice([5,7])
    for i in range(0,rangeLen):
        randI = random.choice(pool)
        imgStr = imgStr + randI

    url = "http://www.imgur.com/gallery/" + imgStr

    try:
        response = urllib2.urlopen(url)
    except URLError as e:
        imgStr = ""
    else:
        break

browser = webbrowser.get('safari')
browser.open(url,new=2)

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Jake - 10 years, 7 months ago

In js

<script>
function randomImage(){
    var text = "";
    var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
    for( var i=0; i < 5; i++ )
        text += possible.charAt(Math.floor(Math.random() * possible.length));
    window.open("http://imgur.com/gallery/"+text);
}
</script>

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Emre Ozdemir - 10 years, 7 months ago

#include <iostream>
#include <ctime>
#include <string>
#include <Windows.h>
using namespace std;

int myRand(){
    return rand()%58+65;
};


int main() {
    srand(time(NULL));
    int forLoop;
    char letter1, xRand;
    for(int k=1;k<=10;k++)
    {
    int sValue=rand()%3 +5;     //  Determines array size 5-6-7

        char a[8];
        for(forLoop=0;forLoop<=sValue-1;forLoop++)  //Fills up the array with Upper/Lower case letters
        {   
            xRand=myRand();
            while(xRand<=96 && xRand>=91)
                xRand=myRand();

            a[forLoop]=xRand;
        }
        a[sValue] = '\0';
        string path("C:\\Program Files (x86)\\Google\\Chrome\\Application\\chrome.exe http://imgur.com/gallery/");
        string arg(a);
        string fin = path + arg;
        cout<<fin<<endl;
        cout<<arg;
        WinExec(fin.c_str() ,SW_SHOW);
    }
}

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Anonymous - 10 years, 7 months ago
One of the random images I got was NSFW!

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Anonymous - 10 years, 7 months ago

Python

from webbrowser import open

from random import choice

open("https://i.imgur.com/"+"".join([chr(choice(range(48,58)+range(65,91)+range(97,123))) for x in range(5)])+".jpg")

IPython version:

from IPython.core.display import Image

from random import choice

Image(url="https://i.imgur.com/"+"".join([chr(choice(range(48,58)+range(65,91)+range(97,123))) for x in range(5)])+".jpg")

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Anonymous - 10 years, 6 months ago

#python 2.7
import webbrowser
import random
import string

x = 0
mystring = ""
p = random.choice([5, 7])
while x < p:
    mystring = mystring + random.choice(string.ascii_uppercase + string.ascii_lowercase + string.digits)
    x = x + 1
myadd = "http://imgur.com/gallery/" + mystring
webbrowser.open(myadd)

Some of those images are NSFW!

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Problem of the Day A new programming or logic puzzle every Mon-Fri

Open Random Image

Comments:

Problem of the Day
A new programming or logic puzzle every Mon-Fri